PACES
Alasdair Scott BSc (Hons) MBBS PhD
2012
[email protected] Medicine
Contents Cardiology ...... 3 Pulmonology ...... 16 The Medical Abdomen ...... 30 Neurology ...... 49 Shorts ...... 71
© Alasdair Scott, 2012 2 Cardiology
Contents General Cardio Tips ...... 4 Aortic Stenosis ...... 5 Mitral Regurgitation ...... 6 Aortic Regurgitation ...... 7 Mitral Stenosis ...... 8 Rheumatic Fever ...... 9 Infective Endocarditis ...... 9 Valve Replacement ...... 10 Valve Prostheses: Key Facts ...... 11 Atrial Fibrillation ...... 12 AF: Key Facts ...... 13 Pacemakers ...... 14 Chronic Heart Failure ...... 15
© Alasdair Scott, 2012 3 General Cardio Tips
Examination Viva
Midline Sternotomy Completion Observation chart Positive Finding Indications Drug chart Metallic click Mechanical valve 12-lead ECG Murmur Tissue valve Valvotomy Presentation Vein harvest on legs CABG On peripheral inspection… Old scar, young pt. Repair of congenital defect The pulse… Immunosuppression Heart transplant On examination of the precordium… Nothing Trauma: tamponade, aortic Significant negatives IMA CABG . Absence of CCF Tissue valve . Disease severity . Evidence of cause Differential Dx Cardiac Causes of Clubbing Hx Infective endocarditis Congenital cyanotic heart disease Discussion . Fallot’s Tetralogy Ix VSD Rx Pulmonary stenosis RVH Hx Overriding aorta Symptoms: dyspnoea, chest pain, palpitations, syncope . Transposition of the Great Vessels LVF: PND, orthopnoea Atrial myxoma IE: fever, wt. loss, night sweats . Assoc. ¯c Carney Complex / LAME Syndrome CV Risk: smoking, DM, lipids, HTN, FH Lentigines: spotty skin pigmentation PMH: rheumatic fever Atrial Myxoma DH: antiplatelet agents, statins Endocrine tumours: pituitary Schwannomas Ix
Collapsing Pulse ECG Caused by hyperdynamic circulation Evidence of ischaemia . AR Arrhythmia . Thyrotoxicosis . Pregnancy Blood . Anaemia FBC: anaemia exacerbates cardiac symptoms
U+E: renovascular disease Absent Radial Pulse NT-proBNP: heart failure Dead Fasting lipids and glucose: cardiac risk Trauma Thrombosis or embolism Imaging Coarctation of the aorta CXR Takayasu’s Arteritis . Cardiomegaly . Pulmonary oedema Impalpable Apex Beat: COPD . Valve calcification COPD Echo Obesity . Dx Pericardial effusion . Valve function Dextrocardia . LV Function Cardiac catheterisation Features of Pulmonary HTN . Evaluate coronary arteries ↑ JVP Left parasternal heave Mx Loud P2 + PSM of TR Pulsatile hepatomegaly General Ascites and peripheral oedema MDT: GP, cardiologist, cardiothoracic surgeon, dietician, specialist nurses Heart Sounds Optimise CV risk: statins, anti-HTN, DM, anti-plat Monitor: regular f/up and echo S1: mitral valve closure Specific S2: aortic valve closure Surgical S3: rapid ventricular filling of dilated left ventricle S4: atrial contraction against stiff ventricle © Alasdair Scott, 2012 4 Aortic Stenosis
Examination Viva
Peripheral Inspection Hx: Clinical Symptoms of Severe AS Often nothing specific Angina: 50% dead in 5yrs Syncope: 50% dead in 3yrs Dyspnoea: 50% dead in 2yrs Pulse Slow-rising (anacrotic) Narrow pulse pressure (<30mmHg) Ix
ECG Precordium LVH Pacemaker Arrhythmias Aortic thrill Apex: Forceful, non-displaced (pressure overload) Blood: FBC, U+E, NT-proBNP, lipids, glucose Heart Sounds . Quiet A2 . Early syst. ejection click if pliable (young) valve CXR . S4 (forceful A contraction vs. hypertrophied V) Calcified AV Murmur LVH . ESM Pulmonary oedema . Right 2nd ICS . Sitting forward in end-expiration Echo + Doppler . Radiates to carotids Severity Cause: Bicuspid valve, thick calcified cusps Clinical Signs of Severe AS LV function Quiet / absent A2 Other valve function S4 Narrow pulse pressure Echo Features of Severe AS (AHA 2006) 2 Decompensation: LVF Valve area <1cm Pressure gradient >40mmHg Jet velocity >4m/s Significant Negatives Cardiac Catheterisation Infective endocarditis Valve gradient LVF Assess coronaries (needed if surgery planned) Indicators of severity
Differential Mx
Aortic sclerosis: no radiation, normal pulse character General MR MDT: GP, cardiologist, cardiothoracic surgeon, HOCM: valsalva ↑s murmur, squatting ↓s murmur dietician, specialist nurses Right-sided: PS Optimise CV risk: statins, anti-HTN, DM, anti-plat
Monitor: regular f/up and echo
Causes Surgical: Valve Replacement ± CABG Age-related senile calcification Indications Bicuspid aortic valve . Symptomatic AS Rheumatic heart disease . Severe asymptomatic AS ¯c ↓ EF (<50%) . Severe AS undergoing CABG or other valve op Mortality: 3-5% depending on pts. EuroSCORE
Other Options TAVI: Transcatheter Aortic Valve Implantation Balloon valvuloplasty
© Alasdair Scott, 2012 5 Mitral Regurgitation
Examination Viva
Peripheral Inspection Ix Warfarin medic alert bracelet ECG Arrhythmias Pulse LVH AF P-mitrale
Blood: FBC, U+E, NT-proBNP, lipids, glucose Precordium
Left parasternal heave (RVH) CXR Apex: displaced LA and LV hypertrophy . Volume overload as ventricle has to pump Mitral valve calcification forward SV and regurgitant volume . → eccentric hypertrophy Pulmonary oedema
Heart Sounds Echo + Doppler . Soft S1 . S2 not heard separately from murmur Severity . ± loud P2 (if PTH) LV function Murmur Other valve function . Blowing PSM . Apex Echo Features of Severe MR (AHA 2006) . Left lateral position in end expiration Jet width >0.6cm . Radiates to the axilla Systolic pulmonary flow reversal Regurgitant volume >60ml Clinical Signs of Severe MR LVF Cardiac Catheterisation AF Assess coronaries (needed if surgery planned)
Significant Negatives Mx
Infective endocarditis General Indicators of severity: AF, LVF MDT: GP, cardiologist, cardiothoracic surgeon,
dietician, specialist nurses
Optimise CV risk: statins, anti-HTN, DM, anti-plat Differential Monitor: regular f/up and echo AS VSD Specific Right-sided: TR AF: rate control and anticoagulate Emboli: anticoagulate
↓ afterload Causes . ACEi or β-B (esp. carvedilol) O Functional: LV dilatation (e.g. 2 to HTN or idiopathic) . Diuretics Annular calcification → contraction Rheumatic heart disease Surgical Mitral valve prolapse Valve replacement or repair Aim to replace the valve before significant LV dilation and dysfunction. Indications . Symptomatic
Prognosis Often asymptomatic for >10yrs Symptomatic: 25% mortality @ 5yrs
© Alasdair Scott, 2012 6 Aortic Regurgitation
Examination Viva
Peripheral Inspection Ix
Eponymous Signs ECG Quincke’s: capillary pulsation in nail beds LVH Corrigan’s: visible vigorous carotid pulsation LV strain: lateral T wave inversion De Musset’s: head nodding Traube’s: pistol-shot sound over femorals Blood Duroziez’s Standard: FBC, U+E, NT-proBNP, lipids, glucose . Systolic murmur over the femoral artery ¯c AI disease: ESR, HLA-B27, ANA proximal compression. . Diastolic murmur ¯c distal compression Mueller’s: systolic pulsations of the uvula CXR Rosenbach’s: systolic pulsations of the liver Cardiomegaly Pulmonary oedema Cause Marfanoid: tall, thin, long arms, high-arched palate Echo + Doppler Ank spond: cervical kyphosis Severity . Jet width (>65% of outflow tract = severe) Pulse . Regurgitant jet volume . Premature closing of the mitral valve Collapsing pulse Cause: bicuspid valve, vegetations, dissection Wide pulse pressure: e.g. 180/45 LV function
Other valve function Precordium Aortic thrill Cardiac Catheterisation Apex: displaced (volume overload) Assess coronaries (needed if surgery planned) Heart Sounds Grade severity . Soft S2 . ± S3 Murmur Mx . High-pitched EDM
. LLSE (3rd left IC parasternal) General . Sitting forward in end-expiration MDT: GP, cardiologist, cardiothoracic surgeon, Possible Additional Murmurs dietician, specialist nurses . Ejection systolic flow murmur Optimise CV risk: statins, anti-HTN, DM, anti-plat . Austin-Flint murmur O Monitor: regular f/up and echo Rumbling MDM @ apex 2 regurgitant jet
fluttering the anterior mitral valve Specific
↓ afterload Clinical Signs of Severe AR . ACEi or β-B (esp. carvedilol) Collapsing pulse . Diuretics Wide pulse pressure
LVF Surgical: Valve Replacement
Aim to replace the valve before significant LV dilation Significant Negatives and dysfunction. Infective endocarditis Indications Indicators of severity, LVF, wide PP, collapsing pulse . Symptomatic: NYHA >2 . LV dysfunction Differential Pulse pressure >100mmHg MS ECG changes: T inversion in lateral leads Right-sided: PR, TS LV enlargement on CXR or EF <50%
Causes
Chronic Bicuspid aortic valve Rheumatic heart disease Autoimmune: Ank spond, RA Connective tissue: Marfan’s, Ehler’s Danlos
Acute Infective endocarditis Type A aortic dissection © Alasdair Scott, 2012 7 Mitral Stenosis
Examination Viva
Peripheral Inspection Ix Middle-aged female Warfarin medic alert bracelet ECG Malar Flush: CO → backpressure + vasoconstriction P-mitrale AF
Pulse Bloods: FBC, U+E, NT-proBNP, lipids, glucose
AF
CXR
LA hypertrophy → splaying of carina Precordium O Calcified mitral valve Left parasternal heave: RVH 2 to PHT Pulmonary oedema Apex: Tapping (palpable S1), non-displaced Heart sounds Echo + Doppler . Loud S1 Severity . ± loud P2 (if PHT) Cusp calcification . Early diastolic opening snap LV function Murmur Other valve function . Rumbling MDM TOE: left atrial thrombus if intervention planned . Apex
. Left lateral position in end expiration Echo Features of Severe MR (AHA 2006) . With the Bell 2 . Radiates to the axilla Valve orifice <1cm . Pre-systolic accentuation if pt. in sinus rhythm Pressure gradient >10mmHg Atrial contraction Pulmonary artery systolic pressure >50mmHg Possible Additional Murmurs . ± Graham Steell murmur (EDM 2O to PR) Cardiac Catheterisation Assess coronaries (needed if surgery planned) Clinical Signs of Severe MR Grade severity Malar flush Longer murmur LVF Mx
General MDT: GP, cardiologist, cardiothoracic surgeon, dietician, Significant Negatives specialist nurses Infective endocarditis Optimise CV risk: statins, anti-HTN, DM, anti-plat Severity: LVF, malar flush, long murmur Monitor: regular f/up and echo Evidence of PHT . Malar flush Specific . ↑ JVP ¯c large V waves Consider rheumatic fever prophylaxis: e.g. Pen V . Left parasternal heave AF . Loud P2 . Rate control: β-B . Anticoagulate (4% stroke risk /yr) Diuretics provide symptom relief Differential AR Surgical Right-sided: PR, TS Indicated in mod–severe MS (asympto and symptomatic) Percutaneous balloon valvuloplasty . Rx of choice Causes . Suitability depends on valve characteristics Rheumatic heart disease Pliable, minimally calcified Other causes are rare . CI if left atrial mural thrombus . Prosthetic valve Surgical valvotomy / commissurotomy: valve repair . Congenital Valve replacement if repair not possible
© Alasdair Scott, 2012 8 Rheumatic Fever Infective Endocarditis
Pathophysiology Normal Valves → Acute Endocarditis Ab cross-reactivity following S. pyogenes infection → T2 hypersensitivity reaction (molecular mimicry). Risk Factors Abs cross-react ¯c myosin, muscle glycogen and SM cells IVDU Path: Aschoff bodies and Anitschkow myocytes. Skin wounds Immunosuppression: CRF, DM Dx: revised Jones Criteria Evidence of GAS infection plus: Organisms . 2 major criteria, or S. aureus . 1 major + 2 minor S. epidermidis
Evidence of GAS infection Cardiac Disease → Subacute Endocarditis +ve throat culture Rapid strep Ag test Risk Factors ↑ ASOT or DNase B titre Prosthetic valves Recent scarlet fever Valve disease
Major Criteria Minor criteria Organisms Pancarditis Fever S. viridans Arthritis ↑ESR or ↑CRP S. bovis (do colonoscopy for colonic neoplasm) Subcut nodules Arthralgia HACEK → culture negative IE Erythema marginatum . not if arthritis is a major Sydenham’s chorea Prolonged PR interval Clinical Features . not if carditis is a major Prev rheumatic fever Hands Other Clubbing Fever Splinters Roth spots Ix Janeway lesions Splenomegaly Bloods: FBC, ESR, ASOT Oslers nodes Haematuria ECG Echo Cardiac New / changing murmur Rx MR: 85% Bed rest until CRP normal for 2wks AR: 55% Benpen 0.6-1.2mg IM for 10 days Analgesia for carditis/arthritis: aspirin / NSAIDs Dx: Duke Criteria Add oral pred if: CCF, cardiomegaly, 3rd degree block 2 major Chorea: Haldol or diazepam 1 major + 3 minor All 5 minor Prognosis Major Attacks last ~ 3mo 1. +ve Blood Culture 60% c carditis develop chronic rheumatic heart disease. ¯ Typical organism in 2 separate cultures, or Recurrence ppted by Persistently +ve cultures, e.g. 3, >12h apart . Further strep infection 2. Endocardial Involvement . Pregnancy +ve echo: vegetation, abscess, dehiscence . OCP or Valve disease: regurgitation → stenosis New valvular regurgitation . Mitral (70%)
. Aortic (40%) Minor . Tricuspid (10%) 1. Predisposition: cardiac lesion, IVDU . Pulmonary (2%) 2. Fever >38
3. Emboli: septic infarcts, splinters, Janeway lesions Secondary Prophylaxis 4. Immune: GN, Osler nodes, Roth spots, RF Prevent recurrence 5. +ve blood culture not meeting major criteria Pen V 250mg/12h PO for 5-10yrs Empiric Rx Acute severe: Fuclox / vanc + gent IV Subacute: Benpen + gent IV
Prophylaxis Abx prophylaxis solely to prevent IE not recommended
© Alasdair Scott, 2012 9 Valve Replacement
Examination Viva
Peripheral Inspection Hx DH: warfarin dosing + interactions General . Look @ pts. yellow warfarin book Audible valve click Anticoagulation → bruising Warfarin alert bracelet Ix Anaemia Bedside Scars ECG Midline sternotomy: CABG, AVR, MVR Left lat. inf. thoracotomy: MVR, mitral valvotomy Blood Neck scars from line insertion FBC: anaemia – MAHA, bleeding Groin / femoral scars from angiography U+E: renovascular disease Vein harvesting scar on the medial leg NT-proBNP: heart failure . May have had CAGB too Fasting lipids and glucose: cardiac risk INR: warfarin Pulse Variable Imaging AF suggests mitral valve replacement due to MS CXR: heart failure Time prosthetic clicks ¯c pulse Echo + Doppler . Occur in time = mitral valve . Valve regurgitation or stenosis . Peri-valvular leak Precordium . Vegetations . LV function
. Other valve function Two Main Questions
1. When and where is the closing prosthetic sound?
2. Are there any murmurs? Discussion Starr-Edwards: 3 artificial sounds Valve complications Quieter click as valve opens Valve types Loud thud as valve closes Infective endocarditis Rumbling sound as ball rolls in cage
Tilting disc or bileaflet: 1 artificial sound High-pitched click as valve closes
Biological Valve Often normal heart sounds
Aortic Lub-Click ± systolic flow murmur Abnormal: AR (EDM)
Mitral Click-Dub ± diastolic flow murmur Abnormal: MR (PSM)
Murmurs Well-seated valves may have soft flow murmurs . Aortic: systolic . Mitral: diastolic Poorly-seated valves → regurgitation . Aortic: diastolic . Mitral: systolic
Significant Negatives Signs of infective endocarditis Signs of heart or valve failure Anaemia Bruising © Alasdair Scott, 2012 10 Valve Prostheses: Key Facts
Mechanical Indications Mainly left-sided valve dysfunction Types . AS most commonly Ball and cage: e.g. Starr-Edwards Factors to consider Tilting disc: e.g. Bjork-Shiley . Severity of valve dysfunction Bileaflet: e.g. St. Jude . Severity of heart function . Co-morbidities Features . Pt. choice Longer life-span: ~20yrs Mechanical or prosthetic Require oral anticoagulation: Warfarin INR 3-4 . Age . Tolerance of long-term anticoagulation Use E.g. pregnancy, falls Bileaflet valves are most commonly used . Pt. choice
Younger pts. to minimise need for revision.
Already on warfarin: e.g. AF Complications
Complications of surgery Biological Operative mortality: 5%
Types Complications of valve Porcine valves: e.g. Carpentier Edwards Thromboembolism: 1-2% per annum despite warfarin Bovine pericardium sewn into a metal frame Anaemia: warfarin and haemolysis . Discontinued Bleeding: minor – 7%/yr, major – 3%/yr Infective endocarditis Features . Early: Staph. epidermidis Less durable cf. mechanical valves: ~10yrs . Late: Strep. viridans Don’t require long-term oral anticoagulation . May require 2nd valve replacement . Take aspirin . Mortality: 60% . NB. avoid erythromycin if on warfarin Use Failure Older patients . Chronic: stenosis or incompetence Women of child-bearing age . Acute: dehiscence, breakage, thrombus Bleeding risk: e.g. peptic ulcer, frequent falls
© Alasdair Scott, 2012 11 Atrial Fibrillation
Examination Viva
Peripheral Inspection Hx Symptoms: palpitations, dyspnoea, chest pain General . Aware of specific onset Warfarin alert bracelet Causes Warfarin: look @ yellow book Cause ↑T4: tremor, thin, palmar erythema, sweating, eye signs Ix MS: mitral flush ECG
Confirm Dx: irregularly irregular, no P waves Pulse Cause: ischaemia, P-mitrale Irregularly irregular Bloods FBC: pneumonia, sepsis Precordium U+E: ↓K MS: MDM TFTs: ↓TSH, ↑fT4 MR: PSM Troponin Other murmurs D-dimer: PE
CXR Completion Pulmonary oedema Respiratory examination: pneumonia Calcified mitral valve Exercise pt. to bring out any murmur Pneumonia
Echo Significant Negatives Valve pathology LV function Murmur TOE: left atrial thrombus Evidence of thyrotoxicosis
LVF Bruising from warfarin
Causes
Common Other IHD Pneumonia Rheumatic heart disease PE Thyrotoxicosis Post-op Hypertension Hypokalaemia Alcohol RA
© Alasdair Scott, 2012 12 AF: Key Facts
Clinical Points Anticoagulation
Differential of Irregularly Irregular Pulse CHA2-DS2-VAS Score AF Determines necessity of anticoagulation in AF Multiple ventricular ectopics Dabigatran may be cost-effective alternative to warfarin
Clinical Distinction Exercise pt. CHA2-DS2 VAS . AF: pulse stays irregularly irregular CCF Vascular disease . VE: ↑ HR → regular pulse HTN Age: 65-74yrs ↓ diastole time closes window for ectopics Age≥75 (2 points) Sex: female DM Pulse Deficit Stroke or TIA (2 points) Difference in HR @ wrist and @ apex Rapid ventricular rate → ↓ diastolic filling → ↓CO Score 0: aspirin AF Control ≥1: Warfarin (INR 2-3) Time the apical rate: target <100 @ rest Warfarin
Mx Contraindications Bleeding diathesis Acute AF ≤48hrs Compliance issues: dosing, monitoring Haemodynamically unstable → cardioversion Risk of falls Stable PUD . Rate control: diltiazem or metoprolol Pregnancy . Start LMWH Pt. choice . Cardiovert: DC or medical (flec or amiodarone) Complications Paroxysmal AF Bleeding Recurrent episodes lasting <7d Osteoporosis Pill in pocket: flecainide or amiodarone Prevention: β-B or sotalol Advice Requires regular monitoring and titration of dose Persistent AF Avoid certain foods: e.g. grapefruit Care starting new meds Lasting >7d Wear medic alert bracelet Rhythm control Come to hospital if uncontrolled bleeding Younger pts., treated precipitants ≥3wks anticoagulation ¯c Warfarin first or TOE to exclude mural thrombus Cardioversion: DC or medical May need maintenance anti-arrhythmic
Rate control 1st: β-B or rate-limiting CCB 2nd: add digoxin (not monotherapy)
Permanent AF Failed cardioversion / unlikely to succeed Rate control
Other options Radiofrequency ablation of AV node Maze procedure Pacing
© Alasdair Scott, 2012 13 Pacemakers
Examination Viva
Peripheral Inspection Hx Groin scars from catheter insertion Arrhythmia Medic alert bracelet . Syncope . Palpitations . Dyspnoea Pulse . Cardiac arrest AF Type of pacemaker
Precordium Ix Left infraclavicular incisional scar Palpable pacemaker ECG . Large: may be implantable defibrillator Pacing spikes ± murmur: esp. AS . May be absent if pt. producing adequate intrinsic rhythm Evidence of ischaemia Significant Negatives CXR AF Visualise pacemaker LVF Count leads Valvular pathology Thick leads suggests implantable defibrillator Complications of pacemaker: infection, erosion Echo LV function Valve pathology Structural abnormalities indicating cause
Pace Makers
Permanent Pacing Indications Complete AV block Mobitz Type 2 Symptomatic bradycardia: e.g. sick sinus syndrome Drug-resistant tachyarrhythmias Biventricular pacing in chronic heart failure
Letters 1st: chamber paced (A, V, D) 2nd: chamber sensed (A, V, D) 3rd: response (Inhibited, Triggered, Dual)
Single Lead One lead senses and responds E.g. VVI
Dual Lead Sense and respond in either chamber
Biventricular Leads to both ventricles ± RA Used for cardiac resynchronisation therapy in HF
Implantable defibrillator: may be incorporated into any pacemaker
Complications Insertion . Bleeding . Arrhythmia Post Insertion . Erosion . Lead migration . Pocket infection . Malfunction © Alasdair Scott, 2012 14 Chronic Heart Failure
Definition Ix CO is inadequate for body’s requirements despite adequate filling pressures. Bloods: FBC, U+E, NT-proBNP, lipids, glucose
NT-proBNP Left Secreted from ventricles in response to ↑ stretch and ↑HR ↑ levels is most accurate diagnostic indicator of HF Causes NICE recommends that heart failure is not Dx w/o ↑ BNP 1: IHD 2: Idiopathic dilated cardiomyopathy CXR: ABCDEF 3: Systemic HTN Alveolar shadowing 4: Mitral and aortic valve disease Kerley B lines Cardiomegaly (cardiothoracic ratio >50%) Symptoms Upper lobe Diversion Fatigue Effusions Exertional dyspnoea Fluid in the fissures Orthopnoea + PND Nocturnal cough (± pink, frothy sputum) ECG Wt. loss and muscle wasting Ischaemia Hypertrophy Signs AF or other arrhythmia Cold peripheries ± cyanosis Often in AF Echo: the key investigation Cardiomegaly ¯c displaced apex Global systolic and diastolic function S3 + tachycardia = gallop rhythm . Ejection fraction normally ~60% Wheeze (cardiac asthma) Focal / global hypokinesia Bibasal creps Hypertrophy Valve lesions
Right Mx
Causes General LVF MDT: GP, cardiologist, physio, dietician, specialist nurses Cor pulmonale Optimise CV risk: statins, anti-HTN, DM, anti-plat Tricuspid and pulmonary valve disease Monitor: regular f/up and echo
Symptoms Specific Anorexia and nausea 1st: β-B + ACEi + loop diuretic
. Bisoprolol Signs . Lisinopril ↑JVP + jugular venous distension . Frusemide Tender smooth hepatomegaly (may be pulsatile) nd 2 : add Spironolactone Pitting oedema rd 3 : consider digoxin Ascites th 4 : consider cardiac resynchronisation therapy
New York Classification Surgery 1. No breathlessness LVAD 2. Breathless ¯c moderate exertion Heart transplant 3. Breathless ¯c mild exertion 4. Breathless at rest Trials Showing Drug Benefit in Heart Failure
ACEi: Consensus 1 ARB = ACEi: ELITE-2 β-B: CIBIS-2, MERIT-2 Spironolactone: RALES
© Alasdair Scott, 2012 15 Pulmonology
Contents COPD ...... 17 COPD: Key Facts ...... 18 Asthma ...... 19 Pulmonary Fibrosis ...... 21 Bronchiectasis ...... 22 Bronchiectasis: Causes ...... 23 Pleural Effusion ...... 24 Lung Cancer ...... 25 Lobectomy and Pneumonectomy ...... 25 Lung Cancer: Key Facts ...... 26 Pneumonia ...... 27 Pneumonia: Key Facts ...... 28 Old TB ...... 29
© Alasdair Scott, 2012 16 COPD
Examination Viva
Peripheral Inspection Hx Symptoms: cough, sputum, dyspnoea Paraphernalia Limitation: exercise tolerance Inhalers Cause: smoking Hx, FHx Peak flow meter Control: exacerbations, admissions Nebuliser Therapy: inhalers, vaccinations, home O2
General Airflow obstruction Definitions . Pursed lip breathing . Splinting diaphragm Chronic bronchitis . Cough productive of sputum on most days for ≥3mo on ≥2 Cushingoid consecutive years Cyanosed Emphysema Cachetic . Histological description of alveolar wall destruction c ¯ Specific airway collapse and air trapping
Hands . Tar staining . CO2 retention flap Ix . Bounding pulse Face Bedside . Plethora: ↑Hb PEFR . Central cyanosis BMI: independent mortality RF in COPD Sputum: MC+S Chest Barrel-shaped Spirometry: obstructive ↓ cricosternal distance ↑ TLC and residual volume (RV) ↓ expansion bilaterally FEV1 <80% PN: resonant FEV1:FVC <0.7 Auscultation ↓ transfer factor . ↓ breath sounds . Expiratory wheeze Bloods . Prolonged expiratory phase FBC: polycythaemia, ↑ WCC in exacerbations ABG: Type 2 resp failure Evidence of Hyperexpansion CRP: if infective exacerbation ↓ cricosternal distance Albumin: malnutrition Loss of cardiac dullness α1-AT levels: if young and FHx Palpable liver edge Imaging Extra CXR . Acute Cor Pulmonale Consolidation ↑ JVP Pneumothorax Left parasternal heave: RV hypertrophy . Chronic Loud P2 ± S3 Hyperinflation: >10 posterior ribs, flat diaphragm MDM of tricuspid regurg PHT: prominent pulmonary As, peripheral oligaemia Ascites and pulsatile hepatomegaly Bullae Peripheral oedema Echo . Cor pulmonale
Other Significant Negatives 6 minute walk CO2 retention ECG: RVH Cor pulmonale Clubbing: could indicate Ca Discussion
Chronic COPD Mx . GOLD classification Differential . LTOT Chronic asthma Acute exacerbation Mx Bronchiectasis . Ventilation Prognosis . BODE index
© Alasdair Scott, 2012 17 COPD: Key Facts
Chronic Mx Mx of Acute Exacerbations
GOLD Classification Global Initiative for Obstructive Lung Disease Controlled O2 Therapy Multidimensional classification to tailor therapy to pt. Sit-up 24% O2 via Venturi mask: SpO2 88-92%, Parameters Vary FiO2 and SpO2 target according to ABG mMRC dyspnoea score Aim for PaO2 >8 and ↑ in PCO2 of <1.5kPa Airflow limitation No. of exacerbations per year mMRC Dyspnoea Score Nebulised Bronchodilators 1. SOB only on vigorous exertion Air driven ¯c nasal specs 2. SOB on hurrying or walking up stairs Salbutamol 5mg/4h 3. Walks slowly or has to stop for breath Ipratropium 0.5mg/6h 4. Stops for breath after <100m / few min 5. Too breathless to leave house or SOB on dressing
Airflow Limitation Steroids (IV and PO) 1. Mild: FEV1 >80% (but FEV/FVC <0.7 and symptomatic) Hydrocortisone 200mg IV 2. Mod: FEV1 50-79% Prednisolone 40mg PO for 7-14d 3. Severe: FEV1 30-49% 4. Very Severe: FEV1 <30%
General Mx Abx If evidence of infection MDT Doxy 200mg PO STAT then 100mg OD PO for 5d GP, dietician, physio, resp physician, specialist nurses Regular review 1-2x / yr NIV if no response Smoking Cessation: single most important intervention Repeat nebs and consider aminophylline IV Specialist nurse and support programme Consider NIV (BiPAP) if pH<7.35 and/or RR >30 Nicotine replacement therapy Consider invasive ventilation if pH<7.26 Varenicline: partial nicotinic agonist . Depends on pre-morbid state: exercise capacity,
home O2, comorbidity Pulmonary Rehabilitation Therapy Tailored exercise programme Disease education Psychosocial support Ix PEFR Co-morbidities Bloods: FBC, U+E, ABG, CRP, cultures Nutritional assessment and dietary support Sputum culture CV risk Mx CXR: infection, pneumothorax Vaccination: pneumococcal and seasonal influenza Discharge Medical Mx Spirometry Principal Therapies Establish optimal maintenance therapy . Anti-muscarinics: short- or long-acting GP and specialist f/up . β-agonists: short- or long-acting Prevention using home oral steroids and Abx . Inhaled corticosteroids: in combination c β-B ¯ Pneumococcal and Flu vaccine Other Therapies Home assessment . Theophylline or Roflumilast: PDIs . Carbocisteine: mucolytic BODE Index Home emergency pack for acute exacerbations Multidimensional tool to predict mortality in COPD LTOT Uses multiple independent risk factors . Aim: PaO ≥8 for ≥15h / day (↑ survival by 50%) 2 . BMI . Indications . Obstruction: FEV Sable non-smokers c PaO <7.3 1 ¯ 2 . Dyspnoea: MRC score PaO2 <8 + cor pulmonale or polycythaemia . Exercise capacity: 6 min walk
Surgical Mx Mortality Recurrent pneumathoraces or large bullae 15% in-hospital mortality Bullectomy or lung reduction surgery
© Alasdair Scott, 2012 18 Asthma
Examination Viva
Peripheral Inspection Hx Symptoms: cough, dyspnoea, wheeze, diurnal variation Paraphernalia Limitations: exercise, sleep, work Inhalers Cause: atopy, exercise, cold, smoking Peak flow meter Control: SABA use, attacks, admissions, ITU Nebuliser . Check peak flow diary Therapy: oral steroid use, check inhaler technique General Assocs. Cushingoid . GORD: dyspepsia . Churg-Strauss: recent onset, rash, neuropathy Specific Oral thrush Definition Episodic, reversible airway obstruction due to bronchial Chest hyper-reactivity to a variety of stimuli. Harrison sulcus Auscultation . Usually normal Ix . May be ↓ AE and mild wheeze Bedside PEFR Significant Negatives CO2 retention Bloods Cor pulmonale FBC (eosinophila) Clubbing: could indicate Ca ↑IgE Aspergillus serology
Differential CXR: hyperinflation Normal Pulmonary oedema: cardiac asthma Spirometry: obstructive COPD ↓ FEV1, ↑RV FEV1:FVC < 0.75 ≥15% improvement in FEV1 ¯c β-agonist
PEFR monitoring / diary Diurnal variation >20% Morning dipping
Atopy: skin-prick testing, RAST
Mx
General MDT: GP, specialist nurses, respiratory physician Technique for inhaler use Avoidance: allergens, smoke (ing), dust Monitor: Peak flow diary (2-4x/d) Educate . Liaise ¯c specialist nurse . Need for Rx compliance . Emergency action plan
Medical: 5-stage BTS Guidelines
Well Controlled No exacerbations No reliever therapy: no PRN salbutamol No night time waking <20% diurnal variation Normal lung function
© Alasdair Scott, 2012 19 Acute Severe Asthma
Presentation Mx Acute breathlessness and wheeze
O2, Nebs and Steroids Hx 1. Sit-up Precipitant: infection, travel, exercise? 2. 100% O2 via non-rebreathe mask (aim for 94-98%) Usual and recent Rx? 3. Nebulised salbutamol (5mg) and ipratropium (0.5mg) Previous attacks and severity: ICU? 4. Hydrocortisone 100mg IV or pred 50mg PO (or both) Best PEFR? 5. Write “no sedation” on drug chart
Ix PEFR If Life Threatening ABG Inform ITU . PaO2 usually normal or slightly ↓ MgSO4 2g IVI over 20min . PaCO2 ↓ Nebulised salbutamol every 15min (monitor ECG) . If PaCO2 ↑: send to ITU for ventilation FBC, U+E, CRP, blood cultures
If Improving Assessment Monitor: SpO @ 92-94%, PEFR 2 Continue pred 50mg OD for 5 days Severe Nebulised salbutamol every 4hrs PEFR <50% Can’t complete sentence in one breath RR >25 HR >110 IV Rx if No Improvement in 15-30min:
Nebulised salbutamol every 15min (monitor ECG) Life Threatening Continue ipratropium 0.5mg 4-6hrly PEFR <33% MgSO 2g IVI over 20min SpO <92%, PCO >4.6kPa, PaO <8kPa 4 2 2 2 Salbutamol IVI 3-20ug/min Cyanosis Consider aminophylline Hypotension . Load: 5mg/kg IVI over 20min Exhaustion, confusion Unless already on theophylline Silent chest, poor respiratory effort . Continue: 0.5mg/kg/hr Tachy-/brady-/arrhythmias . Monitor levels ITU transfer for invasive ventilation Differential Pneumothorax Acute exacerbation of COPD Pulmonary oedema Monitoring PEFR every 15-30min Admission Criteria . Pre- and post-β agonist SpO : keep >92% Life-threatening attack 2 ABG if initial PaCO normal or ↑ Feature of severe attack persisting despite initial Rx 2 May discharge if PEFR > 75% 1h after initial Rx
Discharge When Been stable on discharge meds for 24h PEFR >75% ¯c diurnal variability <20%
Discharge Plan TAME pt. PO steroids for 5d GP appointment w/i 1 wk. Resp clinic appointment w/i 1mo
© Alasdair Scott, 2012 20 Pulmonary Fibrosis
Examination Viva
Peripheral Inspection Hx HPC: dyspnoea, cough, sputum, wt. loss General Cause: arthritis, radiation, occupation, hobbies Clubbing DH Cushingoid Smoking status No sputum Tachypnoea, central cyanosis Ix
Evidence of Specific Cause Bedside RA: rheumatoid hands, nodules PEFR SS ECG: RVH . Sclerodactyly, calcinosis . Microstomia, beak nose, telangiectasia Blood SLE: malar rash FBC: anaemia exacerbates dyspnoea AS: kyphosis ABG: ↓PaO2, ↑PaCO2 Sarcoidosis: EN IPF: ↑ESR, ↑CRP, ANA (30%), RF (10%), ↑Ig Radiation: tattoos on chest EAA: +ve se precipitins CTD: C3/C4, CCP (RF, ANA), scl-70, centromere Chest Sarcoid: se ACE, Ca2+ ± thoracotomy scar: single lung Tx Tracheal shift towards fibrosis: upper lobe Imaging Fine end-inspiratory crackles CXR: reticulonodular shadowing, ↓ lung volume . No change ¯c coughing HRCT: fibrosis, Honeycomb Lung Extras Spirometry: restrictive Cor pulmonale ↓TLC¸ ↓RV, ↓FEV and ↓FVC Significant Negatives FEV1:FVC >0.8 ↓ transfer factor Cyanosis Cor pulmonale Other Specific cause: e.g. RA hands or sclerodactyly Echo: PHT
BAL: may indicate disease activity Differential . ↑ lymphocytes > PMN: better prognosis Bronchiectasis Lung biopsy: usual interstitial pneumonia Chronic lung abscess Mx
Causes MDT: GP, pulmonologist, physio, psych, palliative care, specialist nurses, pts. family Upper Aspergillosis : ABPA Rx specific cause Pneumoconiosis: Coal, Silica EAA: steroids Extrinsic allergic alveolitis Sarcoidosis: steroids Negative, sero-arthropathy Connective tissue disease: steroids TB Supportive care Lower Stop smoking: single most beneficial strategy Sarcoidosis (mid zone) Pulmonary rehabilitation Toxins: BANS ME LTOT Asbestosis Symptomatic Rx Idiopathic pulmonary fibrosis . Anti-tussives: e.g. codeine phosphate Rheum: RA, SLE, SS, Sjogren’s, PM/DM . Heart failure: diuretics, β-B, ACEi
Drugs: BANS ME Surgery: lung Tx offers only cure for IPF Bleomycin, Busulfan Amiodarone Prognosis Nitrofurantoin IPF: 50% 5yr survival Sulfasalazine MEthotrexate Panther Study Pred + AZA + NAC → ↑ mortality: trial arm stopped NAC alone: trial arm still running
© Alasdair Scott, 2012 21 Bronchiectasis
Examination Viva
Peripheral Inspection Hx HPC: dyspnoea, cough, sputum, haemoptysis, wt. loss General Cause: recurrent infections, arthritis, diarrhoea Clubbing Smoking status Sputum pot Small and young: CF Ix Cachexia LNs Bedside Tachypnoea PEFR Dipstick: proteinuria – amyloidosis Evidence of Specific Cause RA: rheumatoid hands Sputum: MC+S, cytology Yellow nails CF: young pt., nasal polyps Blood Hypogammaglobulinaemia: splenomegaly FBC: ACD IBD: abdominal scars Serum Ig: may do provocative testing Aspergillus: RAST, precipitins, ↑IgE, eosinophilia Chest RA: anti-CCP, RF, ANA ± thoracotomy scar Portacath or Hickman line / scars: CF Imaging Coarse, wet crackles CXR: tramlines and ring shadows (bunch of grapes) . May change with cough HRCT . Localised / patchy: 2O to infection . Signet ring sign: thickened dilated bronchi + . Widespread: 2O to systemic disease smaller adjacent vascular bundle ± monophonic wheeze . Pools of mucus in saccular dilatations Dextrocardia Spirometry Extras Obstructive
Cor pulmonale Other
Bronchoscopy + mucosal biopsy Completion . Focal obstruction Examine the nose for polyps . PCD Examine the abdomen for scars and splenomegaly CF sweat test Aspergillus skin prick testing
Significant Negatives Complications Cor pulmonale Cachexia Specific cause: e.g. RA hands Pulmonary HTN Massive haemoptysis Differential Type 2 respiratory failure Idiopathic pulmonary fibrosis Amyloidosis Chronic lung abscess Mx
Conservative Causes MDT: GP, pulmonologist, physio, dietician, immunologist
Physio: postural drainage, active cycle breathing, rehab Congenital
CF Medical PCD / Kartagener’s Abx Young’s: azoospermia + bronchiectasis . Exacerbations: e.g. cipro for 7-10d Hypogammaglobulinaemia: XLA, CVID, SAD . May use prophylactic azithromycin Bronchodilators: nebulised β agonists Acquired Treat underlying cause Idiopathic . CF: DNAase, pancreatin (Creon), ADEK vitamins Post-infectious: pertussis, TB, measles . ABPA: Steroids Obstruction: tumour, foreign body . Immune deficiency: IVIg Associated: RA, IBD (esp. UC), ABPA Vaccination: flu, pneumococcus
Surgical May be indicated in severe localised disease or obstruction
© Alasdair Scott, 2012 22 Bronchiectasis: Causes
Cystic Fibrosis PCD and Kartagener’s Autosomal recessive defect in ciliary motility Genetics Poor mucociliary clearance → chronic recurrent Incidence: 1/2500 live Caucasian births inflammation and bronchiectasis. Carrier frequency: 1/25 ↓ sperm motility in males → infertility Autosomal recessive . Mutation in CFTR gene on Chr 7 Kartagener’s Syndrome . Commonly ∆F508 Situs inversus + PCD (~50% of individuals ¯c PCD) . Situs inversus Pathophysiology . Chronic sinusitis → ↓ luminal Cl secretion and ↑ Na reabsorption → . Bonchiectasis viscous secretions. Bronchioles → bronchiectasis Young’s Syndrome Pancreatic ducts → DM, malabsorption Bronchiectasis GIT → Distal Intestinal Obstruction Syndrome Rhinosinusitis Liver → gallstones, cirrhosis Azoospermia (no sperm in semen) → ↓ fertility Fallopian tubes → ↓ female fertility Seminal vesicles → male infertility Hypogammaglobulinaemia Primary immune deficiency due to ↓ Ig Dx Genetic screening for common mutations Presentation Immunoreactive trypsinogen (neonatal screening) Recurrent sinopulmonary infections → bronchiectasis Sweat test: Na and Cl > 60mM Diarrhoea . False +ve: hypothyroidism, Addison’s Commonly encapsulates: pneumococcus, haemophilus Faecal elastase: tests pancreatic exocrine function Causes Ix Bloods: FBC, LFTs, clotting, ADEK levels, glucose X-linked Agammablobulinaemia: Bruton’s tolerance test X-linked recessive mutation of Bruton’s tyrosine kinase Sputum MC+S Failure to generate mature B cells → ↓ Ig CXR: diffuse tramlines and rings Rx: pooled Ig → passive immunity Abdo US: fatty liver, cirrhosis, pancreatitis Spirometry: obstructive defect Common Variable Immunodeficiency Aspergillus serology / skin test (20% develop ABPA) Commonest 1O immune deficiency: 1/5000 Splenomegaly: 25-50% Mx Normal IgM, ↓IgG, ↓IgA
MDT: GP, gastro and resp physicians, physio, dietician, Specific Antibody Deficiency: SAD specialist nurse Normal Ig levels but inability to make specific antibodies
Chest Yellow Nail Syndrome Physio: postural drainage, active cycle breathing Very rare Abx: acute infections and prophylaxis Yellow dystrophic nails Mucloytics: DNAse Pleural effusions Segregate from other CF pts.: risk of transmission Lymphoedema: lymphatic hypoplasia . Pseudomonas Bronchiectasis . Burkholderia Vaccination: flu, pneumococcus Advanced: heart-lung transplant Allergic Bronchopulmonary Aspergillosis T1 and T3 HS reaction to Aspergillus fumigatus GI Bronchoconstriction → bronchiectasis Pancreatic enzyme replacement: pancreatin (Creon) ADEK supplements Presentation Insulin Dyspnoea, wheeze Productive cough Other Bronchiectasis Rx of complications: e.g. DM Fertility and genetic counselling Ix DEXA osteoporosis screen ↑IgE and eosinophilia +ve skin prick test or RAST Prognosis Mean survival 35yrs but rising Rx Poorer prognosis if infected ¯c Burkholderia cepacia Prednisolone + bronchodilators © Alasdair Scott, 2012 23 Pleural Effusion
Examination Viva
Peripheral Inspection Hx Symptoms: SOB, pleurisy Paraphernalia Cause Chest drain . Fever, sputum . Smoking, wt. loss, haemoptysis Evidence of Specific Cause . Previous MI, orthopnoea, PND Cancer: clubbing, cachexia, LNs . Hepatitis Pneumonia: febrile CCF: ↑JVP, S3, ascites, ankle oedema CLD: clubbing, leukonychia, spiders, gynaecomastia Ix CTD: rheumatoid hands, malar rash Sputum: MC+S, cytology Chest Tracheal shift: away from lesion Imaging ↓ expansion unilaterally CXR PN: stony dull . Dependent homogenous opacification ¯c meniscus Auscultation . Unilateral or bilateral . ↓ AE . Cardiomegaly . ↓ VR . Coin lesions . Hilar LNs Significant Negatives . Apical TB US: may guide pleurocentesis Absence of Volumetric CT . Fever
. Clubbing Blood . ↑ JVP and peripheral oedema . Features of CTD FBC: ↓Hb U+E: ↑ Cr LFTs: ↓ albumin TFT: ↑TSH Differential of Dull Lung Base ESR: ↑ in CTD Consolidation: bronchial breathing + crackles Ca: ↑ in Ca Collapse: ↑ VR Diagnostic Pleurocentesis
Percuss upper boarder and go 1-2 spaces below
Infiltrate down to pleura ¯c lignocaine + aspirate ¯c 21G Causes needle
Send for Transudate Exudate . Chemistry: protein, LDH, pH, glucose, amylase Modified Starling’s Forces ↑ Capillary Permeability . Bacteriology: MCS, auramine stain, TB culture Protein <25 Protein >35 . Cytology Usually bilateral Often unilateral . Immunology: RF, ANA, complement Causes Causes - CCF - Infection: pneumonia, TB Light’s Criteria for Dx of an Exudative Effusion O O - Renal failure - Ca: 1 or 2 Effusion : serum protein ratio >0.5 - ↓ albumin - Inflammation: RA, SLE Effusion : serum LDH ratio >0.6 - Hypothyroidism - Infarction: PE Effusion LDH is 0.6 x ULN - Meig’s syn. - Trauma Empyema: turbid fluid, ↓ glucose and pH <7.2
Pleural Biopsy If pleural fluid is inconclusive CT-guided ¯c Abrams needle
Mx Rx underlying cause May use drainage if symptomatic (≤2L/24h) . Repeated aspiration or ICD Pleurodesis ¯c talc if recurrent malignant effusion Persistent effusions may require surgery
© Alasdair Scott, 2012 24 Lung Cancer Lobectomy and Pneumonectomy
Peripheral Inspection Examination
General Peripheral Inspection Cachexia Clubbing Hoarse voice or stridor Cachexia
Hands Chest Clubbing ± HPOA Scars Tar staining . Lateral thoracotomy Claw hand ¯c wasting of interossei . Clamshell: double lung Tx . Chest drains Face Chest wall asymmetry / deformity Anaemia Horner’s Pneumonectomy Lobectomy Plethora Tracheal + apex shift Tracheal shift - To abnormal side - Mainly upper lobectomy Neck - To abnormal side LNs: check axilla too Throughout abnormal side Focal signs Dilated veins - ↓ expansion - ↓ expansion - Dull percussion - Dull percussion - NO breath sounds - Reduced breath sounds Chest Thoracotomy scar Radiotherapy square burn + tattoo Completion Acanthosis nigricans History to establish cause CXR Collapse Tracheal deviation towards lesion ↓ expansion Viva PN: dull Auscultation . ↓ or absent AE Differential . ± crackles Lobectomy / pneumonectomy ↑ VR Scar but normal lung . Thoracotomy: abscess, empyema, biopsy, wedge Effusion . Transplant: ? other lung normal Tracheal deviation away ↓ expansion Indications for Lobectomy / Pneumonectomy PN: stony dull 90% for non-disseminated bronchial carcinoma Auscultation: ↓ AE Other ↓ VR . Bronchiectasis . COPD: lung-reduction surgery . TB: historic, upper lobe
Extras Operative Mortality Hepatomegaly or spinal tenderness Lobectomy: 7%
Complications Pneumonectomy: 12%
SVCO ↑ risk c . Plethoric, oedematous face and upper limbs ¯ . Dilated neck and chest veins ↑ ASA grade . Stridor Age >70 RLNP: hoarse voice ¯c bovine cough Poor resp function Pancoast Tumour . FEV1:FVC <55% . Horner’s . Claw hand ¯c interossei wasting Discussion Dermatomyositis Lung Ca TB
Differential Consolidation Collapse Effusion
© Alasdair Scott, 2012 25 Lung Cancer: Key Facts
Epidemiology Ix 3rd commonest malignancy in men and women Commonest cause of cancer death 1. Bloods FBC: anaemia, ↑WCC if consolidation Pathology U+E: ↓ Na (SIADH or Addison’s) O LFTs: deranged LFTs 2 to liver mets Non-Small Cell Lung Cancer Bone profile: ↑ Ca2+ (bone mets, ↑PTHrP) SCC: 35% . Highly related to smoking 2. Dx of Mass . Centrally located CXR . PTHrP → ↑ Ca2+ . Coin lesions Adenocarcinoma: 25% . Effusion . RF: female non-smokers . Consolidation or collapse . Peripherally located . Hilar LNs . 80% present ¯c extrathoracic mets . Bony mets Large-cell: 10% Contrast-enhanced volumetric CT thorax
Small Cell Lung Cancer: 20% 3. Determine Cell Type Highly related to smoking Cytology Central location . Induced sputum 80% present ¯c advanced disease . US-guided pleurocentesis Ectopic hormone secretion Histology . Percutaneous FNA: adenocarcinoma . Endoscopic transbronchial biopsy: SCC
Hx 4. Staging Symptoms CT: neck, thorax, upper abdo ± brain . Cough + haemoptysis PET . Dyspnoea Radionucleotide bone scan . Chest pain Thoracoscopy, mediastinoscopy + LN sampling . Anorexia and wt. loss
Smoking 5. Pulmonary Function Tests Occupational expose Assess fitness for surgery
Pneumonectomy CI if FEV1 <1.2L
Complications Mx Local Recurrent laryngeal N. palsy General Phrenic N. palsy MDT SVCO Stop smoking Horner’s (Pancoast’s tumour) Optimise nutrition and CV function AF NSCLC Paraneoplastic Surgery Endo . Rx of choice if no metastatic spread . ADH → SIADH (euvolaemic ↓Na+) Stage 1/2:~25% . ACTH → Cushing’s syndrome . Wedge resection, lobectomy, pneumonectomy . Serotonin → carcinoid (flushing, diarrhoea) Curative Radio: if poor cardiorespiratory function . PTHrP → 1O HPT (↑Ca2+, bone pain) – SCC Chemo: platinum-based + biologics Rheum . Dermatomyositis / polymyositis SCLC Neuro Usually disseminated @ presentation . Cerebellar degeneration Some benefit ¯c chemo . Peripheral neuropathy Derm Palliative Care . Acanthosis nigricans Analgesia: opiates for pain and cough . Trousseau syndrome: thrombophlebitis migrans Radiotherapy: haemoptysis, bone or CNS mets SVCO: dex + radio or intravascular stent Metastatic Persistent effusions: chemical pleurodesis Pathological # Hepatic failure Prognosis Confusion, fits, focal neuro NSCLC: 50% 5ys w/o spread; 10% ¯c spread Addison’s SCLC: 1-1.5yrs median survival treated; 3mo untreated
© Alasdair Scott, 2012 26 Pneumonia
Examination Viva
Peripheral Inspection Hx Ill looking Symptoms Febrile . Fever, rigors, anorexia, malaise ↑RR, ↑HR, AF . Cough + sputum ± haemoptysis Cough . Pleurisy Rusty sputum Smoking Travel and contacts Immunosuppression: HIV, steroids Chest: Consolidation ↓ expansion Ix PN: dull Bedside Auscultation . Bronchial breathing Sputum MC+S, cytology . ↓ AE Urine . Focal coarse crackles . Pneumococcal Ag . Pleural rub . Hb: cold agglutinins → haemolysis . ↑VR Bloods FBC: ↑ WCC Extras U+E: dehydration, ↓Na Para-pneumonic effusion CRP: trend Erythema multiforme: mycoplasma LFT: ↑LFTs in mycoplasma, Legionella Culture: 25% positive Paired Sera: Mycoplasma, Chlamydia, Legionella ABG Differential Collapse CXR Effusion Consolidation ¯c air bronchogram
Effusion Cavities: esp. S. aureus
Other Pleurocentesis BAL
Mx Assess severity and Mx accordingly
Specific Abx Analgesia
Supportive Oxygen Fluids Chest physio
Complications Septic shock + MOF: ITU Para-pneumonic effusion or empyema: drainage Respiratory failure: ventilation Abscess: drainage
f/up CXR @ 6 wks . Check for underlying Ca and resolution Smoking cessation Pneumovax (23 valent) . ≥65yrs . Chronic HLRP failure or conditions . Immunosupp: DM, hyposplenism, chemo, HIV . Re-vaccinate every 6yrs © Alasdair Scott, 2012 27 Pneumonia: Key Facts
Epidemiology Severity: CURB-65 (only if x-ray changes) Incidence: 1/100 Confusion (AMT ≤8) Score Mortality: 10% in hospital, 30% in ITU Urea >7mM 0-1 → home Rx Resp. rate >30/min 2 → hospital Rx Anatomic Classification BP <90/60 ≥ 3 → consider ITU ≥65 Bronchopneumonia Patchy consolidation of different lobes Other Markers of Severity WCC: <4 or >12 Lobar Pneumonia Temp: >38 or <32 Fibrosuppurative consolidation of a single lobe PaO2: <8KPa Congestion → red → grey → resolution AF Multiple lobar involvement
Complications Septic shock and MOF Para-pneumonic effusion / empyema Abscess: S. aureus, Klebsiella, anaerobes Respiratory failure
SIRS
Aetiological Classification Inflam response to a variety of insults manifest by ≥ 2 of: Temperature: >38°C or <36°C Community Acquired Pneumonia Heart rate: >90 Commonest organisms Respiratory rate: >20 or PaCO <4.6 KPa . Pneumococcus: 50% 2 WCC: >12x109/L or <4 x109/L or >10% bands . Mycoplasma: 6% . Haemophilus: esp. if COPD . Chlamydia pneumonia Sepsis . Viruses: 15% SIRS caused by infection Other organisms . S. aureus Severe Sepsis . Moraxella Sepsis ¯c at least 1 organ dysfunction or hypoperfusion . Legionella Rx: amoxicillin + clarithromycin Septic Shock Severe sepsis with refractory hypotension Hospital Acquired Pneumonia >48hrs after hospital admission MODS Common organisms Impairment of ≥2 organ systems . Pseudomonas Homeostasis cannot be maintained without therapeutic . MRSA intervention. . Gm-ve enterobacteria
Rx: co-amoxiclav or tazocin ± vanc
Aspiration ↑ Risk: stroke, bulbar palsy, ↓GCS, GORD, achalasia Typically posterior segment of RLL Orgnaisms: anaerobes Rx: co-amoxiclav
Immunocompromised PCP: co-trimoxazole TB: RIPE Fungi: amphotercin CMV/HSV: ganciclovir
Atypical Pneumonia Refers to organisms which cause atypical generalised symptoms and bronchopneumonia . Fever, headaches, myalgia Poor correlation between clinical and x-ray findings Often intracellular: mycoplasma, Chlamydia, Legionella © Alasdair Scott, 2012 28 Old TB
Examination TB: Key Facts
Chest Pathophysiology
Inspection Primary TB Asymmetry: absent ribs Childhood or naïve TB infection Scars Organism multiplies @ pleural surface → Ghon Focus . Thoracoplasty Macros take TB to LNs . Supraclavicular fossa: phrenic nerve crush . Nodes + lung lesion = Ghon complex Mostly asympto: may → fever and effusion Palpation Cell mediated immunity / DTH controls infection in 95% Tracheal deviation towards apical fibrosis . Fibrosis of Ghon complex → calcified nodule ↓ expansion (Ranke complex) Rarely may → 1O progressive TB (immunocomp) PN: dull Primary Progressive TB Auscultation Resembles acute bacterial pneumonia ± bronchial breathing Mid and lower zone consolidation, effusions, hilar LNs ↓ AE Lymphohaematogenous spread → extra-pulmonary and Crackles milliary TB ↑VR Latent TB Infected but no clinical or x-ray signs of active TB Viva Non-infectious May persist for years Weakened host resistance → reactivation Past Mx of TB It was believed that lower PAO2 would inhibit TB Secondary TB proliferation. Usually reactivation of latent TB due to ↓ host immunity inducing apical collapse was a treatment May be due to reinfection
Typically develops in the upper lobes Techniques Hypersensitivity → tissue destruction → cavitation and Plombage: insertion of polystyrene balls into thoracic formation of caseating granulomas. cavity
Phrenic nerve crush: diaphragm paralysis Dx Thoracoplasty: rib removal to collapse lung
Apical lobectomy Latent TB
Tuberculin Skin Test Complications of Old TB If +ve → IGRA Aspergilloma in old TB cavity Bronchiectasis Active TB . LN compression of large airways CXR . Traction from fibrosis . Mainly upper lobes. Scarring predisposed to bronchial Ca . Consolidation, cavitation, fibrosis, calcification If suggestive CXR take ≥3 sputum samples (one AM) Current Mx of TB . May use BAL if can’t induce sputum . Microscopy for AFB: Ziehl-Neelsen stain Initial Phase (RHZE): 2mos . Culture: Lowenstein-Jensen media (Gold stand) RMP: hepatitis, orange urine, enzyme induction INH: peripheral sensory neuropathy, ↓PMN PCR PZA: hepatitis, arthralgia (CI: gout, porphyria) Can Dx rifampicin resistance EMB: optic neuritis → loss of colour vision first May be used for sterile specimens
Continuation Phase (RH): 4mos Tuberculin Skin Test RMP Intradermal injection of purified protein derivative INH Induration measured @ 48-72h False +ve: BCG, other mycobacteria, prev exposure False –ve: HIV, sarcoid, lymphoma
Interferon Gamma Release Assays (IGRAs) Pt. lymphocytes incubated ¯c M. tb specific antigens → IFN-γ production if previous exposure. Will not be positive if just BCG (uses M. bovis) E.g. Quantiferon Gold and T-spot-TB
© Alasdair Scott, 2012 29 The Medical Abdomen
Contents Chronic Liver Disease ...... 31 CLD: Key Facts ...... 32 Ascites ...... 33 Medical Jaundice ...... 34 Liver Transplant ...... 35 Hepatomegaly ...... 36 Splenomegaly ...... 37 Myloproliferative Disorders ...... 38 Spleen and Splenectomy ...... 38 Enlarged Kidneys ...... 39 Cystic Renal Disease ...... 40 RCC / Hypernephroma ...... 40 Renal Transplant ...... 41 Renal Transplant: Key Facts ...... 42 Renal Replacement Therapy ...... 43 Renal Access ...... 44 CRF: Key Facts ...... 45 CRF: Specific Causes ...... 46 Inflammatory Bowel Disease ...... 47 IBD: Key Facts for Medicine ...... 48
© Alasdair Scott, 2012 30 Chronic Liver Disease
Examination Viva
Peripheral Inspection Hx Cause General . EtOH Jaundice . Sexual Hx, IVDU, transfusions Ascites . FH Cachexia . Other AI disease: e.g. DM, thyroid Tattoos and track marks . DH Pigmentation Ix Hands Clubbing (esp. in PBC) Initial Workup Leukonychia Urine: dip ± MC+S (? UTI) Terry’s nails (white proximally, red distally) Bloods: FBC, U+E, LFTs, INR, glucose Palmer erythema Ascitic tap: chemistry, cytology, MC+S, SAAG 3 Dupuytren’s contracture . PMN >250mm indicates SBP US + PV duplex Face . Liver size and texture Pallor: ACD . Focal lesions Xanthelasma: PBC . Ascites Keiser-Fleischer rings . Portal vein flow Parotid enlargement (esp. ¯c EtOH) Liver Screen Trunk EtOH: MCV, GGT, AST:ALT >2 Spider naevi Viral: Hep B and C serology Gynaecomastia NASH: lipids Loss of 2O sexual hair AutoAbs: SMA, AMA, pANCA, ANA Ig: ↑IgG – AIH, ↑IgM – PBC Ankles Genetic: caeruloplasmin, Ferritin, α1-AT Peripheral oedema Ca: AFP, Ca 19-9
Abdomen Other Liver biopsy Inspection MRCP: PSC Distension ± Para- / umbilical hernia Dilated veins Drain scars Rx
Palpation General ± hepatomegaly MDT: GP, hepatologist, dietician, palliative care, family ± splenomegaly EtOH abstinence Shifting dullness Good nutrition Cholestyramine for pruritus Significant Negatives Screening . HCC: US + AFP Evidence of decompensation . Varices: OGD . Jaundice
. Encephalopathy: asterixis, confusion . Foetor hepaticus: ammonia and ketones Specific . Hypoalbuminaemia: oedema and ascites HCV: interferon-α + ribavarin . Coagulopathy: bruising PBC: ursodeoxycholic acid Evidence of SBP: esp. if ascites Wilson’s: penicillamine Cause: xanthelasma, pigmentation, KF rings, tattoos HH: venesection, desferrioxamine
CLD Differential Complications Varices: β-B, banding Common Ascites: fluid and salt restrict, spiro, fruse, tap, daily wt . EtOH . Viral Coagulopathy: Vit K, FFP, platelets . NASH Encephalopathy: avoid sedatives, lactulose, rifaximin Rarer Sepsis / SBP: tazocin or cefotaxime . Genetic: HH . Avoid gent: nephrotoxicity . AI: AH Hypoglycaemia: dextrose . Drugs: methotrexate Hepatorenal syndrome: IV albumin + terlipressin
© Alasdair Scott, 2012 31 CLD: Key Facts
Causes Encephalopathy Common . Chronic EtOH Pathophysiology . Chronic HCV (and HBV) ↓ hepatic metabolic function . NAFLD / NASH Diversion of toxins from liver directly into systemic Other system. . Congenital: HH, Wilson’s, α1ATD, CF Ammonia accumulates and pass to brain where . AI: AH, PBC, PSC astrocytes clear it causing glutamate → glutamine . Drugs: Methotrexate, amiodarone, isoniazid ↑ glutamine → osmotic imbalance → cerebral oedema. . Neoplasm: HCC, mets . Vasc: Budd-Chiari, RHF, constrict. pericarditis Presentation Asterixis, Ataxia Complications Confusion 1. Liver failure / decompensation Dysarthria 2. SBP Constructional apraxia 3. Portal HTN: SAVE Seizures 4. HCC Ix: ↑ plasma NH4 Child-Pugh Grading of Cirrhosis Evaluates prognosis in Cirrhosis Rx Graded A-C using severity of 5 factors Nurse in well lit, calm environment . Albumin Correct any precipitants . Bilirubin Avoid sedatives . Clotting Lactulose . Distension: ascites . ↓ nitrogen-forming bowel bacteria . Encephalopathy . 2-4 soft stools/d Rifaximin PO: kill intestinal microflora Score 1yr Mortality Tx Mortality A: 5-6 0 10 Hepatorenal Syndrome B: 7-9 20 30 Renal failure in pts. ¯c advanced CLF C: 10-15 50 80 Pathophysiology: “Underfill theory” Cirrhosis → splanchnic arterial vasodilatation → effective Decompensation circulatory volume → RAS activation → renal arterial vasoconstriction. Precipitants → HEPATICS Persistent underfilling of renal circulation → failure Haemorrhage: e.g. varices Electrolytes: ↓K, ↓Na Classification Poisons: diuretics, sedatives, anaesthetics Type 1: rapidly progressive deterioration (survival <2wks) Alcohol Type 2: steady deterioration (survival ~6mo) Tumour: HCC Infection: SBP, pneumonia, UTI, HDV Rx Constipation (commonest cause) IV albumin + terlipressin Sugar (glucose) ↓: e.g. low calorie diet Haemodialysis as supportive Rx Liver Tx is Rx of choice General Mx HDU or ITU SBP Rx any precipitant Good nutrition: e.g. via NGT ¯c high carbs Presentation Thiamine supplements Pt. ¯c ascites and peritonitic abdomen Prophylactic PPIs vs. stress ulcers Complicated by hepatorenal syn. in 30%
Monitoring Common organisms: E. coli, Klebsiella, Streps Fluids: urinary and central venous catheters 3 Bloods: daily FBC, U+E, LFT, INR Ix: ascites PMN >250mm + MC+S Glucose: 1-4hrly + 10% dextrose IV 1L/12h Rx: Tazocin or cefotaxime until sensitivities known Mx Complications Ascites: daily wt, fluid and Na restrict, diuretics, tap Prophylaxis: high recurrence cipro long-term Coagulopathy: Vit K, FFP, platelets Encephalopathy: avoid sedatives, lactulose, rifaximin Poor Prognosis Sepsis / SBP: tazocin or cefotaxime Worsening encephalopathy Hypoglycaemia: dextrose ↑ age Hepatorenal syndrome: IV albumin + terlipressin ↓ albumin ↑ INR © Alasdair Scott, 2012 32 Ascites
Examination Viva
Peripheral Inspection Hx SBP: fever, abdo pain Cause Cause Signs of CLD . Liver disease CCF: ↑ JVP, bibasal creps, peripheral oedema . Cardiac failure, MI Nephrotic: periorbital oedema Budd Chiari: abdo pain, hepatomegaly, jaundice Ix
Abdomen Bedside Shifting dullness Urine: dip ± MC+S Portal HTN: splenomegaly . Exclude nephrotic syn. . ? UTI Completion CVS and Resp for CCF Bloods FBC Urine dip: proteinuria in nephrotic syndrome U+E LFTs: esp. albumin INR Significant Negatives Glucose CLD Liver screen Acute liver failure / decompensation Cause: ↑ JVP, periorbital oedema Ascitic tap Chemistry Cytology: malignancy, PMN (>250/mm3 = SBP) Causes of Ascites Bacteriology: MC+S, Ziehl-Neelson Stain SAAG Commonest Cirrhosis US + PV duplex CCF Liver size and texture Carcinomatosis Focal lesions Ascites Serum Ascites Albumin Gradient Portal vein flow SAAG = Se albumin – Ascites Albumin Rx SAAG ≥1.1g/dL = Portal HTN (97% accuracy) Cirrhosis in 80% General EtOH abstinence SAAG <1.1g/dL Daily wts: aim for ≤0.5kg/d reduction Neoplasia: e.g. peritoneal mets or ovarian Ca Fluid restrict: <1.5L/d Inflammation: pancreatitis Low Na diet: 40-100mmol/d Nephrotic syndrome Infection: TB peritonitis Diuretics Spironolactone Add frusemide if response poor Portal HTN Portal pressure >10mmHg (norm 5-10) Therapeutic Paracentesis 80% cirrhosis in UK Temporary insertion of pig-tail drain or Bonnano catheter Indications Pre-hepatic . Respiratory compromise Portal vein thrombosis . Pain / discomfort . PV, ET . Renal impairment . PNH Risks . Nephrotic syndrome . Severe hypovolaemia: replenish albumin . SBP Hepatic Cirrhosis Refractory Ascites TIPSS Post-hepatic Transplant Cardiac: RHF, TR, constrictive pericarditis Budd-Chiari (hepatic vein thrombosis) SBP Rx: Tazocin or cefotaxime until sensitivities known Prophylaxis: high recurrence cipro long-term
© Alasdair Scott, 2012 33 Medical Jaundice
Examination Viva
Peripheral Examination Hx
Cause Pre-hepatic CLD Anaemia: tired, SOB, palpitations, ankle swelling Pancreatic Ca: cachexia, Virchow’s node FH: HS Haemolysis: pallor CTD: arthritis
Abdomen Hepatic EtOH intake Excoriations and pruritus Foreign travel: Hep A Splenomegaly Blood transfusions, IVDU, sex: Hep B and C Hepatomegaly Sore throat: EBV Palpable gallbladder: Ca head of pancreas Drug Hx: OCP, Abx, neuroleptics, OTCs
Completion Post-hepatic Urine dip: look for BR, urobilinogen and Hb Dark urine, pale stools Itching Significant Negatives Stones: RUQ pain or biliary colic Acute liver failure / decompensation Malignancy CLD . Wt. ↓ and ↓ appetite Organomegaly . Change in bowel habit: esp. steatorrhoea . Back pain Differential CLD: EtOH, viral, NAFLD Ix Splenomegaly . Haemolysis Urine Dip . CLD ( → portal HTN) . Viral hepatitis: e.g. EBV Pre-hepatic Hepatic Post Hepatic Hepatomegaly No BR (acholuric) ↑cBR ↑↑cBR . Hepatitis ↑ urobilinogen ↑ urobilinogen No urobilingoen . CLD Hb No CLD or organomegaly Haemosiderin . Biliary obstruction . Haemolysis Bloods . Drugs: fluclox, OCP FBC and film ± DAT: haemolysis . Gilberts U+E: hepatorenal syndrome LFTs Commonest Causes . Conjugated vs. unconjugated BR Haemolysis . Hepatocellular dysfunction LFTs CLD . Cholestatic LFTs Gallstones Clotting: ↑INR in CLD and Vit K deficiency Liver screen Pre-hepatic Hepatic Post-hepatic Unconjugated Un- / Conjugated Conjugated Imaging Haemolysis CLD Gallstones Abdo US + PV duplex - AIHA Hepatitis MRCP, CT, MRI - HS - EtOH Ca Head Panc - SCD - Viral Other Drugs LNs @ porta hepatis Liver biopsy: check clotting first - Paracetamol - Ca - Statins - TB Rx: Cause - Anti-TB Pre-hepatic Splenectomy Other Causes Hepatic Pre-hepatic Hepatic Post-hepatic EtOH: abstinence + support Haemolysis Congenital PBC Viral: supportive or anti-virals - PNH AI PSC O O Drugs: avoid - MAHA Ca: 1 , 2 Cholangio Ca - Malaria Vasc Drugs Post-Hepatic - G6PD ↓ BR excretion - OCP PBC / PSC: ursodeoxycholic acid - Augmentin, fluclox Stones / Ca: relieve obstruction © Alasdair Scott, 2012 34 Liver Transplant
Examination Viva
Peripheral Inspection Hx Cause General . EtOH Evidence of CLD . Sexual Hx, IVDU, transfusions Pigmentation: HH . FH Tattoos and needle marks: Hep B/C . Other AI disease: e.g. DM, thyroid . DH Immunosuppressant Stigmata Transplant Cushingoid . Cadaveric or live segmental Skin tumours: AKs, SCC (100x ↑ risk), BCC and MM . Any complications Gingival hypertrophy: ciclosporin Current health . Acute rejection: fever, graft pain Abdomen . Immunosuppression Mercedes-Benz scar Infection: e.g. CMV pneumonitis Skin Ca DH
Significant Negatives Evidence of CLD or cause for Tx Ix Evidence of immunosuppression Absence of features of liver failure = working Tx Bloods FBC: infection
U+E: ciclosporin can → renal impairment Differential for Mercedes Benz Scar LFTs: assess graft function Hepatobiliary surgery Clotting . Liver transplant Fasting glucose: tacrolimus and steroids → DM . Segmental resection Drug levels: ciclosporin, tacrolimus . Whipples’: pancreaticoduodenectomy
Other
Liver biopsy: if rejection suspected
Top Causes for Liver Tx Cirrhosis Acute liver failure . Hep A, B . Paracetamol overdose Malignancy
Success of Liver Tx 80% 1-yr survival 70% 5-yr survival
Immunosuppression Regimen Tacrolimus / ciclosporin Azathioprine Prednisolone ± withdrawal @ 3mo
© Alasdair Scott, 2012 35 Hepatomegaly
Examination Viva
Peripheral Inspection Hx Hepatitis / CLD: EtOH, viral exposure, FH Cause Cardiac: dyspnoea, PND, previous MI, rheumatic fever CLD Haem: tiredness, bruising, infections, bone pain EtOH: palmar erythema, Dupuytren’s HH: skin discolouration Ca: cachexia Ix CCF: ↑ JVP, bibasal creps, ascites, peripheral oedema Haematological: pallor, bruising, purpura, LNs Urine dip BR, urobilinogen Abdomen Proteinuria: amyloid
Hepatomegaly Bloods Define fingerbreadths below costal margin at which liver FBC edge palpable. . ↓Hb: malignancy, chronic disease . Moves inferiorly on inspiration . Lymphocytosis: hepatitis viruses, EBV (atypical) . Can’t get above it U+E: CCF → renal impairment . Dull PN LFT Features to note Clotting . Edge: smooth, craggy, nodular Liver screen . Tenderness . Pulsatile Imaging Percuss above and below to confirm enlargement Abdo US + PV and hepatic duplex Auscultate for liver bruit . Liver size and texture . HCC . Focal lesions . Ascites Other . Portal vein flow Splenomegaly . Hepatic veins: thrombosis Inguinal nodes CT: e.g. for tumour Ascites MRI: good quality images of liver parenchyma
Completion Liver Biopsy CVS and Resp: CCF Check clotting first Nodular Pattern . Micronodular: EtOH, HH, Wilson’s . Macronodular: viral Significant Negatives Iron: Pearl’s stain Splenomegaly Copper: Rhodamine stain Acute liver failure / decompensation α1ATD: PAS stain (α1AT globules accumulate in liver) Cause: CLD, ↑JVP, pallor, bruising, LNs Amyloid: apple-green birefringence ¯c Congo Red Granulomata: PBC Common Causes Hepatitis: EtOH, viral, NAFLD CLD Rx: Cause Congestion 2O to cardiac failure EtOH: abstinence + support
Viral: supportive or anti-viral therapy Other Causes: MACHO O HH: venesection ± desferrioxamine Malignancy: 2 Wilson’s: penicillamine Anatomical: Riedel’s lobe, hyperexpanded chest CCF: ACEi, β-B and diuretics Congestion: TR, Budd Chiari Haematological: monitoring or chemo Haem: leukaemia, lymphoma, myeloproliferative, SCD Other: sarcoidosis, amyloidosis, Gaucher’s, ADPKD
© Alasdair Scott, 2012 36 Splenomegaly
Examination Viva
Peripheral Inspection Hx Haem: tiredness, bruising, infections, bone pain Cause CLD: EtOH, viral exposure, FH Haematological: pallor, bruising, purpura, LNs, cachexia Infections: fever, sore throat, jaundice, foreign travel . Cervical, axilla, inguinal Inflammation: arthritis Portal HTN: CLD signs IE: splinter’s, clubbing Haematological Ix Felty’s Syndrome: rheumatoid hands FBC Abdomen CML: ↑↑↑WBC – PMN, basophils, myelocytes MF: pancytopenia Inspection CLL: lymphocytosis Asymmetry Haemolysis: ↓ Hb, ↑MCV, ↑RDW
Palpation Film Splenomegaly MF: leukoerythroblastic ¯c teardrop poikiolcytes . Can’t get above it CLL: smear cells . Moves inferiorly toward RIF on respiration Haemolysis: spherocytes, reticulocytosis . Notch . Dull PN Other Bloods . Not ballotable DAT Size: big or small? U+E and urate: ↑ malignancy → uropathy Hepatomegaly? Inguinal nodes? Imaging Abdo US Completion CT chest and abdomen Cardio and Resp exam: IE and sarcoid PET scan Urine dip: haematuria (IE), proteinuria (amyloid) Histology / Cytology LN biopsy Significant Negatives BM aspirate or trephine biopsy (MF) Hepatomegaly Haem: pallor, bruising, LNs Genetic Analysis CLD CML: Ph Chr, t(9:22) IE: splinters, clubbing MF: Jak2+ in 50% RA hands: Felty’s Syndrome
Infective Ix
Big Spleen: limited differential Dx Urine Dip Myeloproliferative: CML, MF Haematuria: IE Lymphoproliferative: CLL, lymphoma Infiltrative: amyloidosis, Gaucher’s Bloods Developing world: malaria, visceral leishmaniasis FBC: lymphocytosis (may be atypical in EBV) U+E: renal impairment in IE Thick and thin films
Small Spleen: all causes of isolated splenomegaly Imaging
Common Abdo US Haem: myelo- / lympho-prolif disorders, haemolysis Echo: IE Portal HTN: mostly 2O to cirrhosis Infection: EBV Liver Ix
Other Bloods Infection: herpes viruses, hepatitis virus, IE, malaria FBC Inflammation: RA, SLE, Sjogren’s LFT Rare: sarcoidosis, amyloidosis, Gaucher’s, CVID Clotting Liver screen
Hepatosplenomegaly Imaging As for isolated splenomegaly except for inflammatory Abdo US + PV duplex causes © Alasdair Scott, 2012 37 Myloproliferative Disorders Spleen and Splenectomy
CML Anatomy Intraperitoneal structure lying in the LUQ Clonal proliferation of myeloid cells Measures 1x3x5 inches 15% of leukaemia Weighs ~7oz
Lies anterior to ribs 9-11 Symptoms Hypermetabolism: wt. loss, fever, night sweats, lethargy Function: part of the mononuclear phagocytic system Massive HSM → abdo discomfort Phagocytosis of old RBCs, WBCs Bruising / bleeding (platelet dysfunction) Phagocytosis of opsonised bugs: esp. encapsulates Gout Antibody production Hyperviscosity Sequestration of formed blood elements
. Platelets, lymphocytes and monocytes Philadelphia Chromosome Haematopoiesis Reciprocal translocation: t(9;22) Formation of BCR-ABL fusion gene . Constitutive tyrosine kinase activity Hypersplenism Present in >80% of CML Pancytopenia due to pooling and destruction w/i an enlarged spleen. Discovered by Nowell and Hungerford in 1960 Anaemia, bruising, infections Sequestration crisis in SCD → hypovolaemic shock Ix ↑↑WBC Hyposplenism . PMN and basophils . Myelocytes Causes ± ↓Hb and ↓plat (accelerated or blast phase) Splenectomy ↑urate Coeliac disease BM cytogenetic analysis: Ph+ve IBD
SCD Rx Imatinib: tyrosine kinase inhibitor Film . → >90% haematological response ↑ platelets transiently after splenectomy . 80% 5ys Howell-Jolly bodies Allogeneic SCT Pappenheimer bodies . Indicated if blast crisis or TK-refractory Target cells
Mx Primary Myelofibrosis Immunisations Clonal proliferation of megakaryocytes → ↑ PDGF → . Pneumovax Myelofibrosis . HiB Extramedullary haematopoiesis: liver and spleen . Men C . Yrly flu Symptoms Daily Abx: Pen V or erythromycin Elderly Warning: Alert Card and/or Bracelet Massive HSM Hypermetabolism: wt. loss, fever, night sweats Splenectomy BM failure: anaemia, infections, bleeding Indications Ix Trauma Rupture: e.g. 2O to EBV Film: leukoerythroblastic c¯ teardrop poikilocytes Cytopenias AIHA BM: dry tap (need trephine biopsy) ITP HS 50% JAK2+ve Hypersplenism
Rx Complications Supportive: blood products Redistributive thrombocytosis → early VTE Splenectomy . Temporary post-op aspirin prophylaxis Allogeneic BMT may be curative in younger pts. Gastric dilatation: transient ileus . May disturb gastro-omental vessel ligatures Prognosis . Prophylactic NGT post-op 5yr median survival Left lower lobe atelectasis Pancreatitis: tail shares blood supply ¯c spleen ↑ susceptibility to infections . Encapsulates: haemophilus, pneumo, meningo
© Alasdair Scott, 2012 38 Enlarged Kidneys
Examination Viva
Peripheral Inspection Hx ADPKD: FH, loin pain, haematuria, headaches Renal Impairment RCC: haematuria, loin pain HTN Compensatory hypertrophy: previous infections, stones Pallor Ix Renal Replacement Therapy AV fistula (or scar) Urine Tunnelled dialysis lines (or scar) Dip: haematuria, proteinuria Tenchkhoff catheter (or scar) Cytology
Immunosuppressant Stigmata Bloods Cushingoid FBC: ↓Hb 2O to ESRF Skin tumours: AKs, SCC, BCC and MM U+E: ↓eGFR, electrolyte disturbance Gingival hypertrophy: ciclosporin Bone profile: ↓Ca, ↑ PO4, ↑PTH
Imaging Abdomen Abdo US . Confirm renal enlargement Inspection Cysts Nephrectomy scar Hydronephrosis Rutherford Morrison scar Masses Tenchkhoff catheter (or scar) . Liver enlargement CT/MRI Palpation . MRA: Berry aneurysms Palpable Kidney . CT abdo: esp. if RCC suspected . Flank mass . Can get above it Other . Ballotable Genetic studies to look for mutation in . Moves inferiorly ¯c respiration . PKD1 gene on Chr 16: 85% . Resonant PN . PKD2 gene on Chr 4: 15% Hepatomegaly Family screen Renal Transplant
Auscultation Mx of ADPKD Renal bruit General Completion ↑ water intake, ↓ Na, ↓ caffeine (may ↓ cyst formation) External genitalia: hydrocele 2O to RCC Monitor U+E and BP Urine dip: proteinuria, haematuria Genetic counselling CVS: mitral valve prolapse . 50% chance of transmission . 10% are de novo mutations MRA screen for Berry aneurysms Significant Negatives Unilateral enlargement Medical Hepatomegaly Rx HTN aggressively: <130/80 (ACEi best) Evidence of RRT or immunosuppression Rx infections
Surgical: Nephrectomy Differential Recurrent bleeds or infections Abdominal discomfort Bilateral ADPKD ESRF in 70% by 70yrs Bilateral RCC (5%) Mx complications: CRF HEALS Bilateral cysts: e.g. in VHL Dialysis or transplant
Amyloidosis
Unilateral Simple renal cyst RCC Compensatory hypertrophy + contralateral nephrectomy: ADPKD © Alasdair Scott, 2012 39 Cystic Renal Disease RCC / Hypernephroma
ADPKD Epidemiology 90% of renal cancers Epidemiology Age: 55yrs Prev: 1:1000 Sex: M>F=2:1 5% of ESRF in UK Genetics Risk Factors . PKD1 gene on Chr 16: 85% Smoking . PKD2 gene on Chr 4: 15% Obesity . Involve cell-cell interactions HTN
Dialysis: 15% of pts. develop RCC Presentation 4% heritable: e.g. VHL syndrome Age: 30-50s HTN Pathology Recurrent UTIs Adenocarcinoma from proximal renal tubular epithelium Loin pain: cyst haemorrhage or infection Clear Cell (glycogen) subtype: 70-80% Haematuria
Extra-Renal Involvement Presentation Hepatic cysts → hepatomegaly 50% incidental finding Intracranial Berry aneurysms → SAH Triad: Haematuria, loin pain, loin mass MV Prolapse: mid-systolic click + late systolic murmur Invasion of L renal vein → varicocele (1%) Cannonball mets → SOB Prognosis 70% ESRF by 70yrs Paraneoplastic Features EPO → polycythaemia PTHrP → ↑ Ca ARPKD Renin → HTN ACTH → Cushing’s syn. Epidemiology Amyloidosis Prev: 1:40000 Genetics: PKHD1 (fibrocystin) gene on Chr6 Spread Direct: renal vein Presentation Lymph Perinatal Haematogenous: bone, liver and lung Oligohydramnios: may → Potter sequence . Clubbed feet, pulm. hypoplasia, cranial Ix abnormalities Blood: polycythaemia, ESR, U+E, ALP, Ca Bilateral abdominal masses Urine: dip, cytology HTN and CRF Imaging . CXR: cannonball mets Extra-Renal Involvement . US: mass Congenital hepatic fibrosis → Portal HTN . IVU: filling defect . CT/MRI Prognosis ESRF by 20yrs Mx Need Tx Medical . Reserved for pts. ¯c poor prognosis Simple Renal Cysts . Temsirolimus (mTOR inhibitor) Common: 1/3 of pts over 60yrs Surgical May present as renal mass and haematuria . Radical nephrectomy Contain fluid only: no solid elements . Consider partial if small tumour or 1 kidney Main differential is RCC Prognosis: 45% 5ys
Dialysis Associated Renal Cysts Seen after prolonged dialysis Von Hippel-Lindau O 2 to obstruction of renal tubules by oxalate crystals Autosomal Dominant ↑ risk of RCC in cyst: 15% of pts on haemodialysis Renal and pancreatic cysts Bilateral renal cell carcinoma Tuberous Sclerosis (Bourneville’s Disease) Haemangioblastomas AD condition ¯c hamartomas in skin, brain, eye, kidney . Often in cerebellum → cerebellar signs Skin: nasolabial adenoma sebaceum, ash-leaf Phaeochromocytoma macules, peri-ungual fibromas Islet cell tumours Neuro: ↓IQ, epilepsy, astrocytoma Renal: cysts, angiomyolipomas © Alasdair Scott, 2012 40 Renal Transplant
Examination Viva
Peripheral Inspection Hx Cause Renal Impairment . DM HTN . GN Pallor Transplant . Cadaveric or live Renal Replacement Therapy . Any complications: e.g. urinary leaks, infection AV fistula (or scar) Current health Tunnelled dialysis scars . Acute rejection: fever, graft pain Tenchkhoff catheter scars . Graft function: Cr levels, BP, urine output . Immunosuppression Immunosuppressant Stigmata Infection: e.g. CMV pneumonitis Cushingoid Skin Ca Skin tumours: AKs, SCC (100x ↑ risk), BCC and MM . CV risk Gingival hypertrophy: ciclosporin DH
Cause DM Ix . Finger pricks from BM monitoring . Insulin marks on abdomen, lipodystrophy Urine Cystic Kidney Disease Dip: haematuria, proteinuria . Nephrectomy scars or ballotable kidneys MC+S Connective Tissue Disease . SLE, SS, RA Bloods FBC: infection U+E: eGFR – look @ trend Abdomen LFTs: ciclosporin can → hepatic dysfunction Fasting glucose: tacrolimus is diabetogenic Inspect Drug levels: ciclosporin, tacrolimus Rutherford Morrison Scar in RIF Nephrectomy scars Other Tenchkoff catheter scars Renal biopsy: if rejection suspected
Palpate Smooth oval mass under scar Discussion Dull PN Renal failure: causes, Ix, Mx Can get below it Renal replacement therapy Doesn’t move with respiration Renal Tx: complications, immunosuppression
Auscultate Renal bruit over transplant
Completion Dipstick: haematuria and proteinuria Drug chart: any potentially nephrotoxic drug (e.g. ACEi) BP: HTN common post-Tx
Significant Negatives Evidence of immunosuppression Signs of a cause: DM and PKD Working Tx . Renal replacement therapy not in use . No pain over Tx site
Gum Hypertrophy Differential Drugs: ciclosporin, phenytoin, nifedipine Familial AML Scurvy Pregnancy
© Alasdair Scott, 2012 41 Renal Transplant: Key Facts
Commonest Indications for Renal Tx Complications Diabetic nephropathy GN Post-op Polycystic Kidney Disease Bleeding Hypertensive nephropathy Graft thrombosis Infection Urinary leaks Assessment Virology: CMV, HIV, VZV, hepatitis Co-morbidities: esp. CVD Rejection ABO anti-HLA Abs: may be acquired from blood transfusion Hyperacute rejection: minutes Haplotype Path: ABO incompatibility . Importance: HLA-DR > HLA-B > HLA-A Presentation: thrombosis and SIRS . 2 alleles @ each locus → 6 possible mismatches . ↓ mismatches → ↑ graft survival Acute Rejection: <6mo Pre-implantation cross-match Path: Cell-mediated response . Recipient serum vs. donor lymphocytes Presentation . Fever and graft pain . ↓ urine output Contraindications . ↑ Cr Active infection Rx: Responsive to immunosuppression Cancer Severe co-morbidity Chronic Rejection: >6mo Failed pre-implantation x-match Presentation: Gradual ↑ in Cr and proteinuria Path: Interstitial fibrosis + tubular atrophy Rx: supportive, not responsive to immunosuppression
Types of Graft Cadaveric: brainstem death ¯c CV support Drug Toxicity Non-heart beating donor: no active circulation Live-related Ciclosporin: calcineurin inhibitor (blocks IL2 production) . Optimal surgical timing Nephrotoxic: may contribute to chronic rejection . HLA-matched Gingival hypertrophy . Improved graft survival Hypertrichosis Live unrelated Hepatic dysfunction
Tacrolimus: calcineurin inhibitor (blocks IL2 production) Immunosuppression < nephrotoxicity cf. ciclosporin Pre-op: campath / alemtuzumab (anti-CD52) Diabetogenic Post-op Cardiomyopathy . Short-term: prednisolone Neurotoxicity: e.g. peripheral neuropathy . Long-term: tacrolimus or ciclosporin Steroids → Cushing’s Syndrome
Prognosis ↓ immune Function t½ for cadaveric grafts: 15yrs ↑ risk of infection: CMV, PCP, fungi, warts t½ for HLA-identical live grafts: >20yrs ↑ risk of malignancy . Skin: SCC, BCC, MM, Kaposi’s O . Post-Tx lymphoproliferative disease (2 EBV)
Cardiovascular Disease Hypertension Atheromatous vascular disease . A leading cause of death
© Alasdair Scott, 2012 42 Renal Replacement Therapy
Indications Haemofiltration Suggested to start when GFR<15ml/min + symptoms Usually only used in ITU Psychological preparation necessary Takes longer cf. HD but there is less haemodynamic PD vs. HD depends on med, social and psych factors instability.
Mechanism General Dialysis Complications Use a Vas Cath 20% annual mortality Blood filtered across a highly permeable membrane by Cardiovascular disease hydrostatic pressure and water and solutes are removed Malnutrition by convection. Infection Ultrafiltrate is replaced by isotonic replacement. . uraemia → granulocyte dysfunction → ↑ sepsis- related mortality Amyloidosis Peritoneal Dialysis . β2-microglobulin accumulation . Carpal tunnel, arthralgia Mechanism Renal cysts → RCC Dialysate introduced into peritoneal cavity by Tenchkhoff catheter. Uraemic solutes diffuse into fluid across peritoneum Haemodialysis Ultrafiltration: addition of osmotic agent (e.g. glucose) ~3L 4x /day ¯c ~4h dwell times Mechanism Types Counter-current flow CAPD: fluid exchange during day ¯c long dwell @ night Blood flows on one side of semipermeable membrane APD: fluid exchanged during night by machine ¯c long Dialysate flows in the opposite direction on the other dwell throughout day. side. Solute transfer by diffusion Advantages Simple to perform Ultrafiltration Requires less equipment Fluid removal by creation of –ve transmembrane . Easier @ home or on holiday pressure by decreasing the hydrostatic pressure of the Less haemodynamic instability useful if cardio disease dialysate.
Disadvantages Complications Inconvenience Disequilibration syndrome (usually only 1st dialysis) Body image . Rapid changes in plasma osmolarity → cerebral Anorexia oedema
. n/v, headache and ↓GCS Fluid balance: BP↓, pulmonary oedema Complications Electrolyte imbalance Peritonitis Aluminium toxicity (in dialysate) → dementia Exit site infection Psychological factors Catheter malfunction Obesity (glucose in dialysate) Mechanical: hernias and back pain
© Alasdair Scott, 2012 43 Renal Access
AV Fistula Tunnelled Cuffed Catheter
Examination Tessio Lines Two lines tunnelled under skin and entering IJV Inspection Swelling ¯c surgical scar over distal forearm or @ elbow Disadvantages Evidence of use: needle marks May have ↑ recirculation cf. AVF Evidence of infection Lower flow rates ↑ risk of infection and thrombosis Palpation Check if painful Complications Temperature Adverse events @ insertion: e.g. pneumothorax Palpable thrill Line or tunnel infection Blockage Auscultate Retraction Audible bruit
Significant Negatives Evidence of infection, stenosis, aneurysm
Viva
Definition Surgically created connection between artery and vein . Radio-cephalic @ wrist = Cimino-Brescia . Brachio-cephalic @ the elbow . Venous limb (from machine) is proximal Side-to-side anastomosis ¯c ligation of the distal vein
Advantages High flow rates, low recirculation (<10%) Low infection rates Less chance of stenosis cf. grafts
Disadvantages Take ~6 weeks to arterialise Affect pts. body image Must take care: avoid shaving, don’t take BP/blood here
Complications Thrombosis and stenosis Infection Bleeding Aneurysm
Steal syndrome Distal tissue ischaemia . Pallor, pain, ↓ pulses . May → necrosis ↓ wrist:brachial pressure index Rx: banding (plication)
© Alasdair Scott, 2012 44 CRF: Key Facts
Features Complications: CRF HEALS Kidney damage ≥3mo indicated by ↓ function Cardiovascular disease Symptoms usually only occur by stage 4 (GFR<30) Renal osteodystrophy ESRF is stage 5 or need for RRT Fluid (oedema) HTN Classification Electrolyte disturbances: K, H Anaemia Stage GFR Leg restlessness 1 >90 Sensory neuropathy 2 60-89 3 30-59 4 16-29 Renal Osteodystrophy 5 <15 Features Causes Osteoporosis: ↓ bone density Osteomalacia: ↓ mineralisation of osteoid (matrix) Common Other 2O/3O HPT → osteitis fibrosa cystica DM RAS . Subperiosteal bone resorption HTN GN . Acral osteolysis: short stubby fingers CTD: SLE, SS, RA . Pepperpot skull Polycystic disease Osteosclerosis of the spine → Rugger Jersey spine Drugs: e.g. analgesic nephropathy . Sclerotic vertebral end plate ¯c lucent centre Pyelonephritis: usually 2O to VUR Extraskeletal calcification: e.g. band keratopathy Myeloma and amyloidosis Mechanism Ix ↓ 1α-hydroxylase → ↓ vit D activation → ↓Ca → ↑PTH Phosphate retention → ↓Ca and ↑PTH (directly) Urine ↑PTH → activation of osteoclasts ± osteoblasts Dip: haematuria, proteinuria, glycosuria Also acidosis → bone resorption PCR . Normal = <20mg/mM . Nephrotic = >300mg/mM General Mx BJP: myeloma Rx reversible causes Stop nephrotoxic drugs Function Na, K, fluid and PO4 restriction FBC: ↓Hb U+E: ↓ eGFR Optimise CV Risk Bone: ↓Ca, ↑PO4, ↑PTH, ↑ALP Smoking cessation, exercise Statin + antiplatelet Renal Screen Rx DM DM: fasting glucose, HbA1c ESR Immune Specific Mx . SLE: ANA, C3, C4 . Goodpasture’s: anti-GBM Hypertension . Vasculitis: ANCA Target <140/90 (<130/80 if DM) . Hepatitis: viral serology In DM kidney disease give ACEi/ARB (inc. if normal BP) Se protein electrophoresis
Oedema: frusemide Imaging
CXR: pulmonary oedema Bone Disease Renal US Phosphate binders: calcichew, sevelamer . Usually small (<9cm) Vit D analogues: alfacalcidol (1 OH-Vit D ) . May be large: polycystic, amyloid 3 Ca supplements Bone X-rays: renal osteodystrophy (pseudofractures) Cinacalcet: Ca mimetic CT KUB: e.g. cortical scarring from pyelonephritis
Anaemia Renal biopsy: if cause unclear and size normal Exclude IDA and ACD Histology subtype EPO to raise Hb to 11g/dL (higher = thrombosis risk) Amyloid: apple-green birefringence c Congo Red ¯ Restless Legs: clonazepam
© Alasdair Scott, 2012 45 CRF: Specific Causes
Diabetic Nephropathy Myeloma Commonest cause of ESRF: >20% Advanced / ESRF occurs in 40% of T1 and T2 DM Pathology Excess production of monoclonal Ab ± light chains Pathology (excreted and detected in 60% as urinary BJP). Diabetic nephropathy describes conglomerate of lesions Light chains block tubules and have direct toxic occurring concurrently. effects → ATN. Hyperglycaemia → hypertrophy and ROS production Myeloma also assoc. ¯c ↑↑Ca2+ Hallmark is glomerulosclerosis and nephron loss Nephron loss → RAS activation → HTN Presentation ARF / CRF Clinically Amyloidosis Microalbuminuria . 30-300mg/d or albumin:creatinine >3mg/mM Rx . Strong independent RF for CV disease Ensure fluid intake of 3L/d to prevent further Progresses to proteinuria: albuminuria >300mg/d impairment Usually coexists ¯c other micro- and macro-vasc disease Dialysis may be required in ARF
Screening T2DMs should be screened for microalbuminuria 6moly Renovascular Disease: RAS
Mx Cause Good glycaemic control delays onset and progression Atherosclerosis in 80% . UKPDS: UK Prospective Diabetes Study Fibromuscular dysplasia . DCCT: Diabetes Control and Complications Trial Thromboembolism Control HTN: BP target 130/80 External mass compression ACEi/ARB: even if normotensive Stop smoking Presentation Combined kidney pancreas Tx possible in selected pts Refractory hypertension Renal bruits
Worsening renal function after ACEi/ARB Rheumatological Disease Flash pulmonary oedema (no LV impairment on echo) Other signs of PVD RA NSAIDs → ATN Ix Penicillamine and gold → membranous GN CT/MR angio AA amyloidosis occurs in 15% Renal angiography
Rx SLE Rx medical CV risk factors Involves glomerulus in 40-60% → ARF/CRF Angioplasty and stenting AVOID ACEi/ARB Pathogenesis Immune complex deposition → T3 hypersensitivity Typically membranous GN Proteinuria and ↑BP
Rx Proteinuria: ACEi Aggressive GN: immunosuppression
Diffuse Systemic Sclerosis Renal crisis: malignant HTN + ARF . Commonest cause of death Rx: ACEi if ↑BP or renal crisis
© Alasdair Scott, 2012 46 Inflammatory Bowel Disease
Examination Viva
Peripheral Inspection Hx Symptoms General . Wt. loss, fever, malaise Often young female pt. . Abdominal pain . Laparotomy scars . Diarrhoea, blood and/or mucus PR Malnutrition or wt. loss Peri-anal disease: abscesses, fistulae Cushingoid Extra-intestinal: EN, arthritis, iritis, gallstones, PSC Pallor Therapy . Admissions Hands . Medical therapy Clubbing . Operations Leukonychia Beau’s lines Ix
Eyes Bloods Pale conjunctivae FBC: ↓Hb, ↑WCC Iritis, episcleritis U+E: dehydration, ↓K LFTs: ↓ albumin, deranged LFTs Mouth Clotting: ↑INR Aphthous ulcers ↑ ESR, ↑ CRP: used to monitor activity Gingival hypertrophy (ciclosporin) Haematinics: Fe, B12, folate
Legs Markers of Activity in CD Erythema nodosum ↓Hb, ↑ESR, ↑CRP, ↑WCC, ↓albumin Pyoderma gangrenosum Stool Culture + CDT: exclude infective causes Abdominal . Campy, Yersinia, Shigella, C. diff, TB
Inspection Imaging Scars AXR . Toxic megacolon in UC . May be multiple and atypical in Crohn’s O . Healed stoma sites . Bowel obstruction 2 to strictures in Crohn’s . Healed drain sites Contrast studies Stomas or healed stoma sites . Ba or Gastrograffin enema in UC Enterocutaneous fistulae . Small bowel follow-through in Crohn’s MRI: perianal disease in Crohn’s Palpation Tenderness Endoscopy RIF mass Ileocolonoscopy + regional biopsy ± hepatomegaly . Ix of choice . Safe in acute disease . Distinguish UC from Crohn’s Completion . Assess disease severity Wireless capsule endoscopy Inspect perineum for perianal disease
Examine for extra-intestinal features . Large joint monoarthritis Discussion . Sacroileitis Clinicopathological distinction between UC and CD . Bronchiectasis Main complications of IBD Extra-intestinal manifestations Definition and Mx of severe exacerbation Differential Chronic Mx Crohn’s UC Malabsorption: coeliac Mid-line lap: FAP
© Alasdair Scott, 2012 47 IBD: Key Facts for Medicine
Pathology Complications
UC Crohn’s UC Crohn’s
Macroscopic Toxic megacolon Fistulae Location Rectum + colon Mouth to anus Haemorrhage Perianal abscess ± backwash ileitis esp. terminal ileum Malignancy Strictures Distribution Contiguous Skip lesions - CRC Malabsorption Strictures No Yes - Cholangiocarcinoma VTE Toxic dilatation Microscopic Inflammation Mucosal Transmural Ulceration Shallow, broad Deep, thin, serpiginous → cobblestone mucosa Extra-Intestinal Features Fibrosis None Marked Granulomas None Present Skin Clubbing Pseudoplyps Marked Minimal Erythema nodosum Fistulae No Yes PG (esp. UC)
Acute Severe Exacerbation Mouth Aphthous ulcers
Dx: True-Love and Witts Criteria Eyes Anterior uveitis Symptoms Episcleritis . BMs >6 x /d . Large PR bleed Joints Large joint arthritis Systemic Signs Sacroileitis . ↑ HR >90 . Pyrexia >37.8 Hepatic Fatty liver Laboratory Values Chronic hepatitis → cirrhosis . ↓ Hb <10.5g/dL Gallstones (esp. CD) . ESR >30mm/Hr PSC + cholangiocarcinoma (esp. UC)
Mx Other AA amyloidosis Oxalate renal stones General Resus: Admit, NBM, IV hydration Hydrocortisone: 100mg IV QDS + PR if rectal disease Mx of Mild-Mod Disease Thromboprophylaxis: LMWH Dietician review MDT: GP, gastroenterologist, dietician, nurses, surgeon Nutrition: ADEK vitamins, high fibre diet (esp. CD) Monitoring Bloods: FBC, ESR, CRP, U+E Induction Vitals + stool chart Daily examination UC CD Oral Oral Crohn’s Abx: metronidazole PO or IV 1: 5-ASAs 1: Ileocaecal: budesonide Consider parenteral nutrition 2: prednisolone 1: Colitis: sulfasalazine Improvement: → oral pred (40mg/d) 3: ciclosporin / infliximab Refractory: methotrexate ± infliximab 2: prednisolone (tapering) 3: methotrexate UC 4: infliximab / adalimumab Improvement: → oral pred + 5-ASA Refractory: ciclosporin or infliximab Topical: Enemas / foams - 5-ASA Indications for Surgery - Pred Obstruction Megacolon Maintenance Perforation Severe GI bleeding UC CD Failure to respond to medical therapy 1: 5-ASA 1: azathioprine 2: axathioprine 2: methotrexate 3: infliximab / adalimumab 3: infliximab / adalimumab
© Alasdair Scott, 2012 48 Neurology
Contents Parkinson’s Disease ...... 50 Parkinsonism: Key Facts ...... 51 Cerebellar Syndrome ...... 52 Cerebellar Syndrome: Key Causes ...... 53 UMN Signs ...... 54 Cord Disease ...... 55 Acute Stroke: Key Facts ...... 56 Non-Acute Stroke: Key Facts ...... 57 Multiple Sclerosis ...... 58 Motor Neurone Disease ...... 59 LMN Signs ...... 60 Peripheral Polyneuropathy ...... 61 Diabetic Neuropathy ...... 62 Charcot-Marie-Tooth Syndrome ...... 62 Myasthenia Gravis ...... 63 GBS ...... 63 Facial Nerve Palsy ...... 64 Facial Nerve Palsy: Key Causes ...... 65 Facial Anaesthesia...... 65 Abnormal Pupils ...... 66 Visual Fields ...... 67 Ophthalmoplegia ...... 68 Hearing Loss ...... 69 Speech ...... 70
© Alasdair Scott, 2012 49 Parkinson’s Disease
Examination Viva
Inspection Hx Asymmetrical resting tremor: 5Hz Symptoms: tremor, rigidity, akinesia . Exacerbated by counting backwards Autonomic Hypomimia (↓ facial expression) . Postural hypotension Extrapyramidal posture . Urinary problems, constipation . Hypersalivation ADLs Arms . Handwriting, buttons, shoe-laces Demonstrate bradykinesia . Getting in and out of a car Tone Sleep . Cogwheel rigidity . Turning in bed . Enhanced by synkinesis . Insomnia Normal power and reflexes . Daytime sleepiness Coordination Complications . May be abnormal if MSA . Depression . Drug SEs: esp. motor fluctuations Eyes Cause . Sudden onset Movements . Eye or balance problems . Nystagmus: MSA . Visual hallucinations, ↓ memory . Vertical gaze palsy: PSP . DH Saccades . FH . Slow initiation and movement
Ix Extras Glabellar tap Bloods Gait Caeruloplasmin: ↓ in Wilson’s . Slow initiation . Shuffling Imaging . Hurrying: festination CT / MRI: exclude vascular cause . Absent arm swing DaTscan Write sentence and draw spiral 123 . Ioflupane I injection BP lying and standing . Binds to dopaminergic neurones and allows visualisation of substantial nigra Completion . Can exclude other causes of tremor: e.g. BET Mini mental state examination Drug chart Mx Abdominal examination: hepatomegaly + signs of CLD General MDT: neurologist, PD nurse, physio, OT, social worker, Causes GP and carers Idiopathic PD Assess disability Parkinson Plus Syndromes . e.g. UPDRS: Unified Parkinson’s Disease Rating Scale . Progressive supranuclear palsy Physiotherapy: postural exercises . MSA Depression screening . Lewy Body Dementia . Corticobasilar degeneration Specific Multiple infarcts in the substantia nigra L-DOPA + Carbidopa or benserazide Wilson’s disease Da agonists: ropinerole, pramipexole Drugs: neuroleptics and metoclopramide Apomorphine: SC rescue drug MOA-B inhibitors: rasagiline COMT inhibitors: tolcapone Amantidine Anti-muscarinics: procyclidine
Adjuncts Domperidone: nausea Quetiapine: psychosis Citalopram: depression
Other Deep brain stimulation Basal ganglia disruption © Alasdair Scott, 2012 50 Parkinsonism: Key Facts
Idiopathic PD Other Causes of Parkinsonism
Epidemiology Multisystem Atrophy Mean onset 65yrs 2% prevalence Pathology Papp-Lantos Bodies: α-synuclein inclusions in glial cells Pathophysiology Destruction of dopaminergic neurones in pars Features compacta of substantia nigra. Autonomic dysfunction: postural hypotension β-amyloid plaques Parkinsonism Neurofibrillary tangles: hyperphosphorlated tau Cerebellar ataxia
Features: TRAPPS PD If autonomic features predominate, may be referred to as Shy Drager Syndrome Asymmetric onset: side of onset remains worst
Tremor: ↑ by stress, ↓ by sleep Progressive Supranuclear Palsy Rigidity: lead-pipe, cog-wheel Postural instability → falls Vertical gaze palsy Akinesia: slow initiation, difficulty ¯c repetitive movement, micrographia, monotonous voice, mask-like face Pseudobulbar palsy: speech and swallowing problems Parkinsonism Postural instability: stooped gait ¯c festination . Symmetrical onset Postural hypotension: + other autonomic dysfunction . Tremor is unusual Sleep disorders: insomnia, EDS, OSA, RBD Psychosis: esp. visual hallucinations Corticobasilar Degeneration Depression / Dementia / Drug SEs Unilateral parkinsonism: esp. rigidity
Sleep Disorder Aphasia Affects ~90% of PD pts. Astereognosis: cortical sensory loss . → Alien limb phenomenon: autonomous arm Insomnia + frequent waking → EDS movements . Inability to turn
. Restless legs . Early morning dystonia (drugs wearing off) Lewy Body Dementia . Nocturia . OSA Pathology REM Behavioural sleep Disorder α-synuclein and ubitquitin Lewy Bodies in brainstem and . Loss of muscle atonia during REM sleep neocortex . Violent enactment of dreams Da SEs: insomnia, drowsiness, EDS Features Fluctuating cognition Autonomic Dysfunction Visual hallucinations Combined effects of drugs and neurodegeneration Parkinsonism Postural hypotension Constipation Vascular Parkinsonism Hypersalivation → dribbling (↓ ability to swallow saliva) Sudden onset Urgency, frequency, nocturia Parkinsonism worse in legs than arms ED Pyramidal signs Hyperhidrosis Prominent gait abnormality
L-DOPA SEs: DOPAMINE Causes of Tremor Dyskinesia Resting: parkinsonism On-Off phenomena = Motor fluctuations Intention: cerebellar Psychosis Postural ABP↓ . Worse ¯c arms outstretched Mouth dryness . BET Insomnia . Endocrine: ↑T4 N/V . Alcohol withdrawal EDS (excessive daytime sleepiness) . Toxins: β-agonists . Sympathetic: anxiety Motor Fluctuations End-of-dose: deterioration as dose wears off ¯c Benign Essential Tremor progressively shorter benefit. AD On-Off effect: unpredictable fluctuations in motor Occur with movement and worse ¯c anxiety, caffeine performance unrelated to timing of dose. Doesn’t occur ¯c sleep Better ¯c EtOH
© Alasdair Scott, 2012 51 Cerebellar Syndrome
Examination Viva
Gait Hx Walk MS: paraesthesia, visual problems, muscle weakness Heal-to-Toe Alcohol consumption On tip toes Infarct: onset, stroke risk factors On heal Schwannoma: hearing loss, vertigo, tinnitus, ↑ICP Romberg’s FH DH
Arms Outstretched Ataxia Ix
Rebound ECG
Arrhythmia
DaNISh Bloods Dysdiadochokinesia: hands and feet EtOH: FBC, U+E, LFT Nystagmus + Rapid Saccades Thrombophilia: clotting . Saccades: overshoot Wilson’s: ↓ caeruloplasmin Intention tremor and dysmetria Slurred speech CSF Oligoclonal bands
Completion Imaging Cranial nerves: brainstem stroke, MS, CPA lesion MRI is best to visualise the posterior cranial fossa Peripheral nervous system: MS Signs of CLD Other Drug chart: phenytoin CPA lesion: pure tone audiometry
Causes: DAISIES Mx Demyelination Alcohol General MDT: GP, neurologist, radiologist, neurosurgeon, Infarct: brainstem stroke specialist nurses, physio, OT SOL: e.g. schwannoma + other CPA tumours CV Risk Inherited: Wilson’s, Friedrich’s, Ataxia Telangiectasia, ↓ EtOH VHL
Epilepsy medications: phenytoin Specific System atrophy, multiple MS: methylprednisolone
EtOH: Pabrinex, tapering course of chlordiazepoxide Infarct: consider thrombolysis Neurophysiology Schwannoma: gamma-knife, surgery Cerebellar signs are ipsilateral Wilson’s: penicillamine Bilateral cerebellar signs more likely to represent a global pathology . Alcohol . MS . Phenytoin Cerebellar vermis lesion . Ataxic trunk and gait . Normal arms
Nystagmus Cerebellar Cause . Fast phase towards lesion . Maximal looking towards lesion Vestibular Cause . Fast phase away from lesion . Maximal looking away from lesion
© Alasdair Scott, 2012 52 Cerebellar Syndrome: Key Causes
Lateral Medullary Syndrome / Wallenberg’s Friedrich’s Ataxia
Cause Pathophysiology Occlusion of vertebral artery or PICA Auto recessive mitochondrial disorder Progressive degeneration of Features . Dorsal column Signs are ipsilateral apart from body anaesthesia to pain . Spinocerebellar tracts and cerebellar cells . Corticospinal tracts Structure Symptom Onset in teenage years Nucleus Ambiguus Dysphagia Assoc. ¯c HOCM and mild dementia - motor to CN 9/10 Inferior cerebellar peduncle Ataxia Main Features Nystagmus Pes cavus Vestibular nucleus Vertigo Bilateral cerebellar ataxia Spinothalamic tract ↓ Pain: contralateral Leg wasting + areflexia but extensor plantars Spinal trigeminal nucleus ↓ Pain: ipsilateral Loss of vibration and proprioception Sympathetic fibres Horner’s Additional Features DANVAH High-arched palate Dysphagia Optic atrophy and retinitis pigmentosa Ataxia HOCM: ESM + 4th heart sound Nystagmus DM in 10%: dip the urine Vertigo Anaesthesia: dissociated pain loss Horner’s syndrome Ataxia Telangiectasia
Autosomal recessive Defect in DNA repair Vestibular Schwannoma Onset in childhood / early adult
Pathophysiology Features Benign, slow-growing tumour of superior vestibular nerve Progressive ataxia SOL → CPA syndrome: 80% of CPA tumours Telangiectasia: conjunctivae, eyes, nose, skin creases Assoc. ¯c NF2 Defective cell-mediated immunity and Ab production . Infections Presentation Lymphoproliferative disease Unilat SNHL, tinnitus ± vertigo ↑ICP: headache Ipsilateral CN 5, 6, 7 and 8 palsies and cerebellar signs Wilson’s . Facial anaesthesia + absent corneal reflex AR mutation of ATP7B gene on Chr13 . LR palsy
. LMN facial nerve palsy Features: CLANK . SNHL Cornea: Keiser-Fleischer rings . DANISH Liver: CLD Ix Arthritis MRI of cerebellopontine angle Neuro: parkinsonism, ataxia, psychiatric problems Kidney: Fanconi’s syn Rx Gamma-knife Surgery
CPA Tumour Differential Vestibular Schwannoma Meningioma Cerebellar astrocytoma Metastases
Von Hippel-Lindau Renal cysts Bilateral renal cell carcinoma Haemangioblastomas . Often in cerebellum → cerebellar signs Phaeochromocytoma Islet cell tumours
© Alasdair Scott, 2012 53 UMN Signs
Examination Viva
Inspection Hx Walking aids MS: tingling, eye problems, ataxia, other weakness May have disuse atrophy and contractures Cord compression: back pain, fever, wt. loss Limb position Trauma . Leg: extended, internally rotated ¯c foot plantar flexed FH . Arm: flexed, internally rotated, supinated
Gait Ix Unilateral → circumducting Bilateral → scissoring MRI Cord and brain UMN Signs ↑ tone Further Ix Depend on Cause Pyramidal distribution of weakness MS . Leg: extensors stronger than flexors . LP: oligoclonal bands . Arm: flexors stronger than extensors . Abs: MBP, NMO Hyper-reflexia . Evoked potentials Extensor plantars Compression . FBC: infection Sensation . CXR: malignancy . DRE Examine for sensory level: suggests cord lesion SCDC . B12 level Completion . Pernicious anaemia Abs: IF, parietal cell CN: evidence of MS Cerebellum: evidence of MS Mx
Bilateral LL: Spastic Paraparesis Supportive MDT: GP, neurologist, radiologist, neurosurgeon, Common specialist nurses, physio, OT MS Orthoses Cord compression Mobility aids Cord Trauma Urinary: ICSC CP Contractures: baclofen, botulinum injection, physio
Other Familial spastic paraparesis Vascular: e.g. aortic dissection → Beck’s syndrome Infection: HTLV-1 Tumour: ependymoma Syringomyelia
Mixed UMN and LMN Features MND Ataxia, Friedrich’s SCDC: B12 Taboparesis
Unilateral LL
Hemisphere → Spastic Hemiparesis Stroke MS SOL CP
Hemicord → Spastic Hemiparesis or Monoparesis MS Cord Compression
© Alasdair Scott, 2012 54 Cord Disease
Cord Compression Syringomyelia
Key Features Characteristics Pain Syrinx: tubular cavity in central canal of the cord. . Local, deep Symptoms may be static for yrs but then worsen fast . Radicular . e.g. on coughing, sneezing as ↑ pressure → Weakness extension . LMN @ level Commonly located in cervical cord . UMN below level Syrinx expands ventrally affecting: Sensory level . Decussating spinothalamic neurones Sphincter disturbance . Anterior horn cells . Corticospinal tracts Causes Trauma: vertebral # Causes Infection: epidural abscess, TB Blocked CSF circulation ¯c ↓ flow from posterior fossa Malignancy: breast, thyroid, bronchus, kidney, prostate . Arnold-Chiari malformation (cerebellum herniates Disc prolapse: above L1/2 through foramen magnum) . Masses Ix Spina bifida 2O to cord trauma, myelitis, cord tumours and AVMs MRI is definitive modality
CXR for primaries Cardinal Signs 1. Dissociated Sensory Loss Rx . Loss of pain and temperature → scars from burns This is a neurosurgical emergency . Preserved touch, proprioception and vibration. Malignancy . Root distribution reflects syrinx location . Dexamethasone IV Usually upper limbs and chest: “cape” . Consider chemo, radio and decompressive 2. Wasting/weakness of hands ± Claw hand laminectomy 3. Loss of reflexes in upper limb Abscess: abx and surgical decompression 4. Charcot joints: shoulder and elbow
Other Signs Cauda Equina Lesions UMN weakness in lower limbs ¯c extensor plantars Pain Horner’s syndrome . Back pain Syringobulbia: cerebellar and lower CN signs . Radicular pain down legs Kyphoscoliosis Weakness
. Bilateral flaccid, areflexic lower limb weakness Sensation Ix . Saddle anaesthesia MRI spine Sphincters . Incontinence / retention of faeces / urine Surgery . Poor anal tone Decompression at the foramen magnum for Chiari mal
Causes and Mx as above Human T-lymphotropic Virus-1 Retrovirus Anterior Spinal Artery / Beck’s Syndrome ↑ prevalence in Japan and Caribbean Infarction of spinal cord in distribution of anterior spinal artery: ventral 2/3 of cord. Features Causes: Aortic aneurysm dissection or repair Adult T cell leukaemia / lymphoma Effects Tropical spastic paraplegia / HTLV myelopathy . Para- / quadri-paresis . Slowly progressing spastic paraplegia . Impaired pain and temperature sensation . Sensory loss and paraesthesia . Preserved touch and proprioception . Bladder dysfunction
© Alasdair Scott, 2012 55 Acute Stroke: Key Facts
Definition Acute Management Rapid onset focal neurological deficit of vascular origin lasting >24hrs. Resuscitate Ensure patent airway: consider NGT NBM until swallowing assessed by SALT Pathogenesis Don’t overhydrate: risk of cerebral oedema Ischaemic: 80% BM: exclude hypoglycaemia . Atheroma: large or small vessel . Embolism: cardiac or atherothromboembolism Monitor Haemorrhagic: 20% Glucose: 4-11mM: sliding scale if DM BP: Rx of HTN can → ↓ cerebral perfusion Neuro obs Clinical Features: Bamford Classification Bloods TACS: carotid / MCA and ACA territory FBC: infection (sepsis may → stroke) Hemiparesis and/or hemisensory deficit U+E: electrolyte disturbances may mimic stroke Homonymous hemianopia Glucose: exclude hypoglycaemia Higher cortical dysfunction Clotting: ↑ or ↓ INR may indicate cause . Dominant: aphasia . Non-dominant: neglect, apraxia Imaging Urgent CT/MRI PACS: carotid / MCA and ACA territory Diffusion-weighted MRI is most sensitive for acute infarct . 2/3 of TACS criteria, usually CT will exclude primary haemorrhage . Homonymous hemianopia . Higher cortical dysfunction Medical Consider thrombolysis if 18-80yrs and <4.5hrs since POCS: vertebrobasilar territory onset of symptoms . Any of . Alteplase (rh-tPA) . Cerebellar syndrome . → ↓ death and dependency (OR 0.64) . Brainstem syndrome . CT 24h post-thrombolysis to look for haemorrhage . Homonymous hemianopia Aspirin 300mg PO/PR once haemorrhagic stroke excluded ± PPI LACS: infarct around basal ganglia, internal capsule, thalamus . Clopidogrel if aspirin sensitive and pons Pure motor: post. limb of internal capsule Surgery Pure sensory: post. thalamus (VPL) Neurosurgical opinion if intracranial haemorrhage Mixed sensorimotor: internal capsule May coil bleeding aneurysms Dysarthria / clumsy hand Decompressive hemicraniectomy for some forms of Ataxic hemiparesis: ant. limb of internal capsule MCA infarction.
Stroke Unit Differential Specialist nursing and physio Head injury Early mobilisation ↑ or ↓ glucose DVT prophylaxis SOL Infection Secondary Prevention Drugs: e.g. opiate OD Rehabilitation
© Alasdair Scott, 2012 56 Non-Acute Stroke: Key Facts
Stroke Work-Up Rehabilitation Must occur on a dedicated stroke unit ECG ± 24hr Tape Arrhythmia MENDS Old ischaemia MDT: physio, SALT, dietician, OT, specialist nurses, neurologist, family Eating Bloods . Screen swallowing: refer to specialist FBC: ↑ or ↓ Hb NG/PEG if unable to take oral nutrition U+E: association ¯c renovascular disease . Screen for malnutrition (MUST tool) Glucose: exclude DM Supplements if necessary Lipids: CV risk Neurorehab: physio and speech therapy Clotting and thrombophilia screen . Botulinum can help spasticity Vasculitis: ESR, ANA DVT Prophylaxis Sores: must be avoided @ all costs Thrombophilia Screen FBC, clotting, fibrinogen concentration APC resistance / F5 Leiden Prognosis @ 1yr Lupus anticoagulant 10% recurrence Anti-cardiolipin Abs PACS Assays for protein C and S and AT3 activity . 20% mortality PCR for prothrombin gene mutation . 1/3 of survivors independent . 2/3 of survivors dependent Imaging TACS is much worse CXR . 60% mortality . Cardiomegaly 2O to HTN . 5% independence . Aspiration Carotid doppler Echo . Mural thrombus . Regional wall motion abnormality . ASD, VSD: paradoxical emboli
Secondary Prevention Risk factor control as above . Start a statin after 48h Aspirin / clopi 300mg for 2wks after stroke then either . Clopidogrel 75mg OD (preferred option) . Aspirin 75mg OD + dipyridamole MR 200mg BD Warfarin instead of aspirin/clopidogrel if . Cardioembolic stroke or chronic AF . Start from 2wks post-stroke (INR 2-3) . Don’t use aspirin and warfarin together. Carotid endarterectomy if good recovery + ipsilat stenosis ≥70%
© Alasdair Scott, 2012 57 Multiple Sclerosis
Definition A chronic inflammatory condition of the CNS characterised by multiple plaques of demyelination disseminated in time and space.
Epidemiology Ix Lifetime risk: 1/1000 MRI: Gd-enhancing or T2 hyper-intense plaques Age: mean @ onset = 30yrs . Gd-enhancement = active inflammation Sex: F>M = 3:1 . Typically located in periventricular white matter Race: rarer in blacks LP: IgG oligoclonal bands (not present in serum) Abs Aetiology . Anti-MBP Genetic (HLA-DRB1), environmental, viral (EBV) . NMO-IgG: highly specific for Devic’s syn. Evoked potentials: delayed auditory, visual and sensory Pathophysiology CD4 cell-mediated destruction of oligodendrocytes → Diagnosis: clinical demyelination and eventual neuronal death. Demonstration of lesions disseminated in time and space Initial viral inflam primes humoral Ab responses vs. MBP May use McDonald Criteria Plaques of demyelination are hallmark Differential Classification Inflammatory conditions may mimic MS plaques: Relapsing-remitting: 80% CNS sarcoidosis Secondary progressive SLE Primary progressive: 10% Devic’s: Neuromyelitis optica (NMO) Progressive relapsing . MS variant ¯c transverse myelitis and optic atrophy . Distinguished by presence of NMO-IgG Abs Presentation: TEAM Tingling Mx Eye: optic neuritis (↓ central vision + eye move pain) MDT: neurologist, radiologist, physio, OT, specialist Ataxia + other cerebellar signs nurses, GP, family Motor: usually spastic paraparesis Acute Attack Clinical features Methylpred 1g IV/PO /24h for 3d Sensory: Motor: . Doesn’t influence long-term outcome Dys/paraesthesia Spastic weakness . ↓ duration and severity of attacks ↓ vibration sense Transverse myelitis Preventing Relapse: Disease Modifying Trigeminal neuralgia IFN-β: ↓ relapses by 30% in RRMS MS Eye: Cerebellum: Glatiramer: similar efficacy to IFN-β Diplopia Trunk and limb ataxia Preventing Relapse: Biologicals Visual phenomena Scanning dysarthria Natalizumab: anti-VLA-4 Ab Bilateral INO Falls . ↓ Relapses by 2/3 in RRMS Optic neuritis → atrophy Alemtuzumab (Campath): anti-CD52 . 2nd line in RRMS GI: Sexual/GU:
Swallowing disorders ED + anorgasmia Symptomatic Constipation Retention Fatigue: modafinil Incontinence Depression: SSRI (citalopram) Lhermitte’s Sign Pain: amitryptylline, gabapentin Neck flexion → electric shocks in trunk/limbs Spasticity: physio, baclofen, dantrolene, botulinum Urgency / frequency: oxybutynin, tolterodine Optic Neuritis ED: sildenafil PC: pain on eye movement, rapid ↓ central vision Tremor: clonazepam Uhthoff’s: vision ↓ ¯c heat: hot bath, hot meal, exercise o/e: ↓ acuity, ↓ colour vision, white disc, central scotoma, Prognosis RAPD Poor prognostic signs: INO / ataxic nystagmus / conjugate gaze palsy Older female Disruption of MLF connecting CN6 to CN3 Motor signs @ onset Weak adduction of ipsilateral eye Many relapses early on Nystagmus of contralateral eye Many MRI lesions Convergence preserved
© Alasdair Scott, 2012 58 Motor Neurone Disease
Examination Viva
Inspection Ix Wasting and fasciculation Brain/cord MRI: exclude structural cause . Esp. tongue fasciculation . Cervical cord compression → myelopathy . Brainstem lesions Tone EMG: fasciculation Spastic LP: exclude inflammatory cause
Power Diagnostic Criteria Weak Revised El Escorial Criteria
Reflexes Mx Absent and/or brisk General . E.g. absent knee jerks ¯c extensor plantars MDT: neurologist, physio, OT, dietician, specialist nurse, GP, family Sensation: NORMAL Discussion of end-of-life decisions . E.g. Advanced directive Completion . DNAR Speech . Bulbar: nasal Specific . Pseudobulbar: hot-potato Riluzole: antiglutamatergic that prolongs life by ~3mo Jaw-jerk . Bulbar: absent Supportive . Pseudo-bulbar: brisk Drooling: amitriptyline Eye movements: MND does not involve the eyes Dysphagia: NG or PEG feeding Respiratory failure: NIV Pain: analgesic ladder Differential Spasticity: baclofen, botulinum Cervical cord compression → myelopathy Brainstem lesions Prognosis Polio: asymmetrical LMN paralysis Most die w/i 3yrs Mixed UMN and LMN Signs . Bronchopneumonia and respiratory failure . MND Worse prog: elderly, female, bulbar involvement . Ataxia, Friedrich’s . SCDC: B12 . Taboparesis Classification
Amyotrophic Lateral Sclerosis: 50% Corticospinal tracts → UMN and LMN signs + fasciculation
Progressive Bulbar Palsy: 10% Only affects CN 9-12 → bulbar palsy
Progressive Muscular Atrophy: 10% Anterior horn cell lesion → LMN signs only Distal to proximal Better prognosis cf. ALS
Primary Lateral Sclerosis: 30% Loss of Betz cells in motor cortex → mainly UMN signs Marked spastic leg weakness and pseudobulbar palsy No cognitive decline
© Alasdair Scott, 2012 59 LMN Signs
Examination Ix
LMN Signs Peripheral Neuropathy Wasting See below Fasciculation Hypotonia Proximal Myopathy Hyporeflexia Bloods . DM: glucose, HbA1c Causes . Muscle damage: CK, ESR, AST, LDH . Endocrine: TSH, Ca, 9am cortisol, IGF-1 Pathology anywhere from anterior horn to muscle itself . Abs: anti-Jo1
CXR: paraneoplastic Bilateral, Symmetrical and Distal EMG Motor Peripheral Polyneuropathy Genetic analysis ± sensory disturbance Muscle biopsy . = Mixed Peripheral Polyneuropathy Mononeuropathy Differential Bloods HMSN . DM: glucose, HbA1c Paraneoplastic . B12, folate Lead poisoning . Vasculitis: ESR, ANA, ANCA Acute: GBS, Botulism EMG + nerve conduction
Radiculopathy / Plexopathy Bilateral, Symmetrical and Proximal MRI Proximal myopathy
Differential Inherited: muscular dystophy Inflammation . Polymyositis . Dermatomyositis Endocrine . Cushing’s Syndrome . Acromegaly . Thyrotoxicosis . Osteomalacia . Diabetic Amyotrophy Drugs: alcohol, statins, steroids Malignancy: paraneoplastic
Unilateral
Isolated to single limb + no sensory signs Old polio
Localised to group of muscles c¯ same supply Segmental: nerve roots, plexus Peripheral: mononeuropathy
Hand Wasting Anterior horn: syringomyelia, MND, polio Roots (C8 T1): spondylosis Brachial Plexus . Compression: cervical rib . Avulsion: Klumpke’s palsy Neuropathy . Generalised: HMSN . Mononeuritis multiplex: DM . Compressive mononeuropathy Muscle . Disuse: RA . Distal myopathy: myotonic dystrophy © Alasdair Scott, 2012 60 Peripheral Polyneuropathy
Examination Viva
Sensory Hx Bilateral, symmetrical Time-course Glove and stocking distribution: length dependent Precise symptoms ↓ tendon reflexes: loss of ankle jerks in DM . Ataxia: B12 Signs of trauma or joint deformity (Charcot’s joints) . Painful dysesthesia: EtOH, DM Loss of proprioception → +ve Romberg’s Assoc. events . D&V: GBS Motor . ↓wt: Ca Bilateral, symmetrical . Arthralgia: connective tissue LMN weakness Travel, EtOH, drugs . Wasting and fasciculation . ↓ tone Ix . Hyporeflexia Dipstick: glucose Completion Drug chart Bloods DM: Glucose, HBA1c Dipstick: glucose EtOH: FBC ± Film, LFTs, GGT Gait + Romberg’s test CRF: U+E CN B12, folate Vasculitis: ESR, ANA, ANCA Causes Thyroid disease: TFTs
Imaging Mainly Sensory CXR: exclude paraneoplastic phenomena DM
Alcohol Other B12 deficiency Nerve conduction studies CRF and Ca (paraneoplastic) . Demyelination → ↓ conduction speed Vasculitis . Axonal degeneration → ↓ conduction amplitude Drugs: e.g. isoniazid, vincristine Electromyography Genetic: PMP22 gene in CMT Mainly Motor Nerve biopsy HMSN / CMT Paraneoplastic: Ca lung, RCC Lead poisoning Acute: GBS and botulism Mx
General MDT: GP, neurologist, specialist nurses, physio, OT Foot care and careful shoe choice Splinting joints can prevent contractures
Specific Optimise glycaemic control: DCCT, UKPDS trials Replace nutritional deficiencies Avoid EtOH or other precipitants Vasculitis: steroids and other immunosuppressants Neuropathic pain: amitriptyline, gabapentin GBS: IVIg
© Alasdair Scott, 2012 61 Diabetic Neuropathy Charcot-Marie-Tooth Syndrome = Peroneal Muscular Atrophy Examination of the Lower Limbs = Hereditary Motor and Sensory Neuropathy
Inspection Examination Evidence of finger pricks from BM monitoring Peripheral vascular disease Inspection Charcot joints Pes cavus Symmetrical distal muscle wasting Motor . → claw hand Bilateral loss of ankle jerks . → champagne bottle leg . 2O to sensory neuropathy Thickened nerves: esp. common peroneal around Mononeuritis multiplex fibula . Foot drop Motor Sensory High-stepping gait: foot drop Distal sensory loss in stocking distribution Weak foot and toe dorsiflexion Absent ankle jerks Completion Examine the fundi Sensory Examine the upper limbs and cranial nerves Variable loss of sensation in a stocking distribution . Sensory neuropathy . Mononeuritis multiplex CN3 Viva CN6 Ulnar nerve Hx Urine dip: glucose, proteinuria Family Hx
Viva Pathophysiology Group of inherited motor and sensory neuropathies Hx Pain: esp. @ night HMSN1 Glycaemic control Commonest form Complications of insulin Demyelinating Other micro- and macro-vascular complications AD mutation in the peripheral myelin protein 22 gene
Pathophysiology HMSN2 Second commonest form Metabolic: glycosylation, ROS, sorbitol accumulation Axonal degeneration Ischaemia: loss of vasa nervorum Autosomal dominant
Ix Urine: glucose, ACR Blood . Glucose Ix . HbA1c Nerve conduction studies . U+E . HMSN1: demyelination → ↓ conduction velocity . HMSN2: axonal degeneration → ↓ amplitude Rx Genetic testing . HMSN1: Peripheral myelin protein 22 (PMP22) MDT: GP, endocrinologist, neurologist, DNS gene Good glycaemic control Amitriptyline, Gabapentin Capsaicin cream Mx: Supportive Femoral Neuropathy / Amyotrophy MDT: GP, neurologist, specialist nurses, physio, OT Painful asymmetric weakness and wasting of quads ¯c loss Foot care and careful shoe choice of knee jerks Orthoses: e.g. ankle braces Dx: nerve conduction and electromyography
Autonomic Neuropathy Postural hypotension – Rx: fludrocortisone Gastroparesis → early satiety, GORD, bloating Diarrhoea – Rx: codeine phosphate Urinary retention ED
© Alasdair Scott, 2012 62 Myasthenia Gravis GBS
Examination Classification AIDP: acute autoimmune demyelinating Inspect polyneuropathy Thymectomy scar Miller-Fisher: ophthalmoplegia + ataxia + areflexia
Eyes Bilateral ptosis: worse on sustained upward gaze Pathophysiology Complex ophthalmoplegia Molecular mimicry: Abs x-react ¯c ganglioside
Bacteria: C. jejuni, mycoplasma Facial Movements Viruses: CMV, EBV Myasthenic snarl on smiling
Voice Nasal Features Deterioration: ask pt. to count to 50 Symmetrical ascending flaccid paralysis Sensory disturbance: paraesthesia Limbs Autoimmune neuropathy: labile BP Fatiguability: repeatedly flap arm
Completion Ix Assess respiratory muscle function: spirometry (FVC) Evidence of infection: e.g. stool MC+S Anti-ganglioside Abs LP: ↑↑ CSF protein Nerve conduction studies: demyelination Viva
Ix Mx Abs: Anti-AChR, Anti-MuSK EMG: ↓ response to titanic train of impulses Supportive Tensilon test: improvement ¯c edrophonium Airway / ventilation: ITU if FVC < 1.5L (anticholinesterase) Analgesia: NSAIDs, gabapentin TFTs: Graves in 5% Autonomic: may need inotropes, catheter CT mediastinum: thymoma in 10% Antithrombotic: TEDS, LMWH
Associations Immunosuppression <50, female IVIg . AI disease: DM, RA, Graves, SLE Plasma exchange >50, male . Thymoma Physiotherapy Prevent flexion contractures Mx Prognosis Acute 85% complete recovery Plasmapheresis or IVIg 10% unable to walk alone at 1yr Monitor FVC: consider ventilation 5% mortality
Chronic Pyridostigmine Immunosuppression: steroids and azathioprine Thymectomy: benefit even if no thymoma
LEMS Abs vs. VGCC Often paraneoplastic: e.g. SCLC Lower limb girdle weakness Weakness improves on repetitive testing
Bilateral Ptosis MG Myotonic dystrophy Congenital Senile Bilateral Horner’s (rare)
© Alasdair Scott, 2012 63 Facial Nerve Palsy
Examination Viva
Inspection Hx Unilateral facial droop Symptoms Absent nasolabial fold . Eye dryness ± absent forehead creases . Drooling ? scar or parotid mass . ↓ taste: ageusia Ear rash . Hyperacusis Cause Weakness . Onset: rapid in Bell’s . Rash or external ear pain Raising eyebrows: frontalis . Hx of DM Screwing up eyes: orbicularis oculi . SOL: headache, nausea . Bell’s sign: eyeball rolls back on closure . Other CN: vertigo, tinnitus, diplopia Smiling: orbicularis oris . Limb weakness
. Rash, fever UMN or LMN? UMN → sparing of frontalis and orbicularis oculi Aguesia and Hyperacusis Due to bilateral cortical representation Chorda tympani and nerve to stapedius arise just distal to geniculate ganglion w/i the temporal bone. Other CN Involvement Loss of these functions indicates a proximal lesion NB. other CN involvement seen in 8% of Bell’s Palsy Common in Ramsay Hunt: VZV @ geniculate ganglion
Pons → Millard-Gubler Syndrome Ix CN6 nucleus → ipsilateral lateral rectus palsy CN7 nucleus → ipsilateral LMN facial palsy Urine Dip: glucose Corticospinal tracts → contralateral hemiparesis Bloods CPA: ipsilateral CN 5, 6, 7 and 8 palsies and cerebellar signs DM: glucose, HbA1c Facial anaesthesia + absent corneal reflex Serology: VZV and Lyme LR palsy Abs: anti-ACh receptor LMN facial nerve palsy SNHL Imaging DANISH MRI posterior cranial fossa
Auditory Canal → CN8 Other Pure tone audiometry Completion LP: exclude infection If UMN: likely stroke Nerve conduction studies . Examine limbs for ipsilateral spasticity . May predict delayed recovery when performed @ . Examine visual fields: ipsilateral homonymous 2wks. hemianopia If LMN: likely Bell’s Palsy Mx . Look in ears Prednisolone w/i 72hrs . Examine PNS, CN and cerebellar function Valaciclovir if VZV suspected . Test taste Protect eye . Dark glasses Causes . Artificial tears 75% Idiopathic Bell’s Palsy . Tape closed @ night Supranuclear: vascular, MS, SOL Pontine: vascular, MS, SOL Prognosis CPA: vestibular Schwannoma, meningioma, 2O Incomplete paralysis: recovers completely w/i wks Intra-temporal: Ramsay Hunt, Cholesteatoma, trauma Complete: 80% get full recovery Infra-temporal: Parotid tumour, trauma . Remainder have delayed recovery or permanent Systemic neurological / cosmetic abnormalities. . Neuropathy: DM, Lyme, Sarcoidosis . Pseudopalsy: MG Complications: Aberrant Neural Connections Synkinesis: e.g. blinking causes up-turning of mouth Bilateral Facial Nerve Palsy Crocodile tears: eating stimulates unilateral lacrimation, Bilateral Bell’s not salivation Sarcoidosis GBS Lyme Pseudopalsy: MG, Myotonic dystrophy
© Alasdair Scott, 2012 64 Facial Nerve Palsy: Key Causes Facial Anaesthesia
Bell’s Palsy Examination 75% of Facial Palsies ↓ absent sensation in trigeminal distribution Dx of exclusion . Note modality Inflammatory oedema → compression of CNVII in . Note which trigeminal branch narrow facial canal Weak masseter and temporalis Probably of viral origin (HSV1) Jaw jerk . Brisk: UMN Features . Absent: LMN Sudden onset Loss of corneal reflex Complete LMN facial palsy Ageusia: corda tympani Hyperacusis: stapedius Viva Assoc. ¯c other CN involvement in 8% Causes
Ramsay Hunt Syndrome Supranuclear American neurologist James Ramsay Hunt in 1907 Demyelination Reactivation of VZV in geniculate ganglion of CNVII Infarct SOL Features Preceding ear pain or stiff neck Nuclear Vesicular rash in auditory canal ± TM, pinna, tongue, CPA lesion: ¯c other CN palsies hard palate (no rash = zoster sine herpete) Lateral medullary syndrome: loss of pain and temp Ipsilateral facial weakness, ageusia and hyperacusis May affect CN8 → vertigo, tinnitus, deafness Peripheral: mononeuropathy DM, sarcoid, vasculitis Mx Cavernous sinus If Dx suspected give valaciclovir and prednisolone w/i . Ophthalmic and maxillary divisions first 72h . Bilateral
Prognosis Rxed w/i 72h: 75% full recovery Otherwise: 1/3 full recovery, 1/3 partial, 1/3 poor
Cholesteatoma Locally destructive expansion of stratified squamous epithelium within the middle ear. Usually 2O to attic perforation in chronic suppurative OM
Presentation Foul smelling white discharge Vertigo, deafness, headache, pain, facial paralysis Appears pearly white ¯c surrounding inflammation
Complications Deafness (ossicle destruction) Meningitis, cerebral abscess
Management Surgery
Lyme Disease Borellia burgdorferi Early Local: Erythema migrans + systemic malaise Late Disseminated . CN palsy: esp. facial palsy . Polyneuropathy . Meningoencephalitis . Arthritis . Myocarditis . Heart block
© Alasdair Scott, 2012 65 Abnormal Pupils
Horner’s Syndrome Holmes-Adie (Myotonic) Pupil Dilated pupil that has no response to light and sluggish Examination response to accommodation. ↓ or absent ankle and knee jerks Face: PEAS Benign condition, more common in young females Ptosis: partial (superior tarsal muscle) Enophthalmos Argyll Robertson Pupil Anhydrosis Small pupil Features NO ophthalmoplegia Small, irregular pupils Accommodate but doesn’t react to light Neck Scars Atrophied and depigmented iris Central lines Carotid endarterectomy Extras
Offer to look for sensory ataxia: tabes dorsalis Hands Dip the urine: glucose Complete claw hand + intrinsic hand weakness
↓ / absent sensation in T1 Causes Completion Quaternary syphilis: RPR or TPHA DM Cerebellum, CNs and PNS
RAPD / Marcus Gunn Pupil Differential
Central Features MS Minor constriction to direct light Wallenberg’s Dilatation on moving light from normal to abnormal eye.
Pre-ganglionic (neck) Features of Optic Atrophy Pancoast’s tumour: T1 nerve root lesion ↓ visual acuity Trauma: CVA insertion or carotid endarterectomy ↓ colour vision: esp. red desaturation Central scotoma Post-ganglionic Pale optic disc Cavernous sinus thrombosis RAPD . Usually 2O to spreading facial infection via the ophthalmic veins Causes: CAC VISION . CN 3, 4, 5, 6 palsies Commonest: MS and glaucoma
Oculomotor Nerve Palsy Congenital Leber’s hereditary optic neuropathy Features . Epi: mitochondrial, onset 20-30s Complete ptosis: LPS . PC: attacks of acute visual loss, sequential in each Eye points down and out: unopposed SOB and LR eye ± ataxia and cardiac defects Dilated pupil, doesn’t react to light: unless spared HMSN / CMT Ophthalmoplegia and diplopia Friedrich’s ataxia DIDMOAD Medical vs. Surgical Alcohol and Other Toxins Parasympathetic fibres originate in Edinger Westphal Nucleus and run on periphery of oculomotor nerve. Ethambutol Receive rich blood supply from external pial vessels Lead These fibres are affected late in ischaemic causes B12 deficiency (medical) but early in compression (surgical). Compression Medical Neoplasia: optic glioma, pituitary adenoma Mononeuritis: e.g. DM Glaucoma MS Paget’s Infarction in midbrain . Weber’s: CN3 palsy + contralateral hemiplegia Vascular: DM, GCA or thromboembolic Inflammatory: optic neuritis – MS, Devic’s, DM Migraine Sarcoid / other granulomatous
Infection: herpes zoster, TB, syphilis Surgical Oedema: papilloedema ↑ ICP: transtentorial herniation compresses uncus Neoplastic infiltration: lymphoma, leukaemia Cavernous sinus thrombosis Posterior communicating artery aneurysm: painful © Alasdair Scott, 2012 66 Visual Fields
Visual Pathway Bitemporal Hemianopia Retina Chiasmatic lesion Optic nerve Optic chiasm: nasal fibres decussate Extras Optic tract Take Hx and examine for features of endocrine disease LGN of thalamus . Prolactinoma Optic radiation . Acromegaly . Superior field: temporal . Cushing’s . Inferior field: parietal Visual cortex Causes Pituitary tumour Ix . Compresses from below → descending visual loss Craniopharyngioma Perimetry . Compresses from above → ascending visual loss CT/ MRI brain . Benign suprasellar tumour originating from
Rathke’s pouch.
. Calcified as arises from odontogenic epithelium Homonymous Hemianopia Retrochiasmatic Greater defect = larger lesion or closer to chiasm Contralateral Monocular Blindness No vision in one eye Check counting fingers, movement and light perception Extras Lesion proximal to optic chiasm Examine for ipsilateral hemiparesis . Eye itself: cornea, vitreous, retina Examine for cerebellar signs . Optic nerve: i.e. optic neuropathy Right: test for neglect Left: test for aphasia
Hx Speed of onset Vascular risk factors
Vascular Territory MCA Stroke . MCA supplies the optic radiation in the temporal and parietal lobes . Hemiparesis . Higher cortical dysfunction: neglect, aphasia PCA Stroke . PCA supplies occipital lobe and visual cortex . Homonymous hemianopia ¯c macula sparing Branch of MCA supplies part of visual cortex . No hemiparesis . May have cerebellar signs
Causes Vascular: ischaemia or haemorrhage SOL: tumour, abscess Demyelination: MS
© Alasdair Scott, 2012 67 Ophthalmoplegia
Examination Internuclear Ophthalmoplegia
H Test: Left Eye Examination Failure of ipsilateral adduction Nystagmus in the contralateral abducting eye May be bilateral Convergence preserved
Neurophysiology To maintain convergent gaze, MLF yokes together the nuclei of CN3 and 6.
Pontine centre for lateral gaze initiates movement and outputs to CN3 nucleus and CN6 nucleus via the MLF Failure of adduction is ipsilateral to MLF lesion
Causes Key Elements MS Inspect the eye Infarct: ischaemic or haemorrhagic . Ptosis Syringomyelia . Alignment Phenytoin toxicity . Pupil sizes Ask pt. to tell you if they get double vision Use H to test movements noting: Complex Ophthalmoplegia . Ophthalmoplegia Dx of exclusion . Diplopia: do cover test Ophthalmoplegia doesn’t fit a single pattern . Nystagmus Saccades: vertical and horizontal Causes DM: Mononeuritis multiplex Diplopia MS Maximal in direction of pull of affected muscle Myasthenia gravis Cover test: outer image disappears c affected eye ¯ Thyrotoxicosis
Simple Palsies Ix Urine dip: glucose rd 3 Nerve Bloods Complete ptosis . DM: glucose + HbA1c Down and out in rest position . TFT: ↓TSH ± dilated, non-reactive pupil . MG: anti-AChR antibodies Diplopia maximal: in and up MRI Brain . Plaques in the periventricular white matter 4th Nerve Slight head tilt: ocular torticollis Appear normal in rest position Failure to depress eye in adduction Diplopia maximal down and in Ask if pt. has trouble walking down stairs
6th Nerve Appear normal in resting position Failure to abduct Diplopia maximal in abduction Commonly a false localising sign of ↑ ICP: contralateral lesion
Causes Central NS: MS, vascular, SOL Peripheral NS: DM (mononeuritis), compression, trauma
Ix Urine dip: glucose Bloods: glucose + HbA1c Imaging: MRI brain
© Alasdair Scott, 2012 68 Hearing Loss
Examination Causes USE a 512Hz TUNING FORK Conductive Rinne’s Test Impaired conduction anywhere between auricle and Positive: AC > BC round window. Negative: BC > AC Canal obstruction: wax, FB . True: conductive deafness TM perforation: trauma, infection . False: complete SNHL Ossicle defects: otosclerosis, infection Fluid in middle ear Weber’s Test Normal: central SNHL SNHL: lateralises to normal ear Defects of cochlea, cohlear N. or brain Conductive: lateralises to abnormal ear Congenital Alports: SNHL + haematuria Jewell-Lange-Nielsen: SNHL + long QT
Acquired Presbyacussis Drugs: gentamicin, vancomycin Infection: meningitis, measles Tumour: vestibular schwannoma
© Alasdair Scott, 2012 69 Speech
Examination Abnormalities
Aims to Test Dysarthria Dysphonia: impaired production of voice sounds Lesion in tongue, lips, mouth or disruption of NM pathway Dysarthria: impaired articulation of sound → words Dysphasia: impairment of language Pseudo-bulbar Bilateral UMN lesions → spastic dysarthria Quick Screen Difficulty ¯c lingual sounds Ask: How did you get here today? . “Hot Potato speech” . Listen to volume, rhythm, clarity and content Brisk jaw jerk . Any striking abnormality? Causes . CVA: e.g. bilateral internal capsule infarcts Dysarthria . MS Repetition . MND . Yellow lorry: test lingual sounds . Baby hippopotamus: labial sounds Bulbar . The Leith police dismisseth us: multiple processes Unilateral LMN weakness Count to thirty: muscle fatigue in MG Palatal weakness → nasal “Donald Duck” speech Causes Dysphonia . Brainstem infarct . MND Voice: quiet or hoarse . GBS Cough: bovine
Say Ahh: vocal cord tension Cerebellar
Slurred, drunken speech Dysphasia Name three objects: nominal dysphasia Three stage command: receptive dysphasia Dysphonia . Avoid visual clues by instructing from behind Hoarse voice Repeat sentence: Today is Thursday Bovine cough . Tests for conductive dysphasia Cause Extras Local cord pathology: laryngitis, tumour, nodule Dominant parietal lobe lesions → dyslexia, dysgraphia Recurrent laryngeal N. palsy and dyscalcula. Read a paragraph: dyslexia Write a sentence: dysgraphia Dysphasia
Expressive Broca’s area: frontal lobe Non-fluent speech Comprehension intact
Receptive Wernicke’s Area: temporal lobe Fluent but meaningless speech Comprehension impaired
Conductive Damage to arcuate fasciculus connecting Broca’s and Wernicke’s areas. Comprehension intact Unable to repeat words or phrases
© Alasdair Scott, 2012 70 Shorts
Contents Psoriasis ...... 72 Dermatitis ...... 73 Cutaneous Manifestations of DM ...... 73 Skin Malignancy ...... 74 Neurofibromatosis ...... 75 Tuberous Sclerosis ...... 75 Spot Skin Diagnoses ...... 76 Rheumatoid Hands ...... 77 RA: Key Facts ...... 78 Systemic Sclerosis ...... 79 Systemic Lupus Erythematosus ...... 80 Ankylosing Spondylitis ...... 81 Marfan’s Syndrome ...... 82 Tophaceous Gout ...... 83 Osteoarthritis ...... 83 Thyrotoxicosis ...... 84 Hypothyroidism ...... 85 Acromegaly ...... 86 Cushing’s Syndrome ...... 87 Addison’s Disease ...... 88 Steroids: Key Facts ...... 89 Neuro Shorts ...... 89
© Alasdair Scott, 2012 71 Psoriasis
Examination Viva
Skin Hx Symmetrical, well-defined salmon-pink plaques Symptoms Silvery, micaceous scale . Itch Locations . Arthritis . Extensors Triggers . Behind ears . Smoking . Scalp . Stress . Umbilicus . Injury . Sites of trauma: Kobner phenomenon . Drugs: β-B, EtOH Skin staining from Rx Treatments . Coal tar: brown . Topical . Dithranol: purple . Phototherapy . Systemic Nails Discolouration Pathogenesis Pitting T4 T cell-driven hypersensitivity reaction Onycholysis Hyperkeratosis Subungual hyperkeratosis Parakeratosis (nuclei in the stratum corneum) Intra-epidermal microabscess (of Munro) Joints Evidence of inflammatory arthropathy Subtypes Guttate Completion . Drop-like lesions on trunk Inspect common areas and assess joints . Commoner in children after Strep infection Assess for Auspitz sign Pustular: generalised or palmo-plantar . Pinpoint bleeding on scraping scale Erythroderma Hx Flexural: not scaly
Differential Psoriatic Arthritis Psoriasis Seronegative arthritis develops in 10-40% Bowen’s Disease Asymmetric oligoarthritis Lichen planus Distal arthritis Dermatitis Symmetric polyarthritis: may mimic RA Spondylitis Arthritis mutilans Other Differentials Mx Onycholysis Psoriasis General Fungal infection MDT: GP, dermatologist Trauma Avoid precipitants: EtOH, β-B, smoking, stress Thyrotoxicosis Topical Pitting Emollients: epaderm, dermol, diprobase Psoriasis Steroids: betometasone Fungal infection Vit D analogues: calcipotriol Lichen planus . Combination: Dovobet Coal Tar: inpt. Use mainly Kobner Phenomenon Dithranol Psoriasis Lichen planus Phototherapy Viral warts PUVA Vitiligo Narrow-band UVB Sarcoid Systemic Cytotoxics: ciclosporin, methotrexate Retinoids: acetretin Biologics: anti-TNF
© Alasdair Scott, 2012 72 Dermatitis Cutaneous Manifestations of DM
Examination Examination
Skin Hands Erythematous lichenified patches Cheiroarthropathy Predominantly flexors . Tight waxy skin that limits finger extension Excoriations . Prayer sign Painful fissures: esp. hands Granuloma annulare . Flesh-coloured papules in annular configuration Differential . Usually on dorsum of hand Just hands: irritant contact dermatitis . 10% assoc. ¯c DM Atopic eczema Glucose skin prick testing marks Discoid: well-demarcated patches on trunk and limbs Seborrhoeic dermatitis Injection Sites Shoulders, abdomen and thighs Lipodystrophy Viva Shins Hx Necrobiosis lipoidica diabeticorum Atopy: asthma, hay fever, allergies . Well-demarcated waxy, bruise-like plaques . Prominent blood vessels Patch testing: house dust mites, animal dander . 90% female Effect of diet
Mx Feet Charcot’s Joints
General Ulcers: heel, metatarsal heads, digits
MDT: GP, dermatologist Avoid precipitants Other Infections: candida, cellulitis O Adjuvants Eruptive tendon xanthoma: 2 to hyperlipidaemia Antihistamines: pruritis Abx: 2O infection
Topical Emollients: dermol, epaderm, diprobase Soap substitutes: dermol, epaderm 1st: steroids 2nd: tacrolimus
Phototherapy
Systemic: only if severe Steroids Ciclosporin
© Alasdair Scott, 2012 73 Skin Malignancy
BCC Malignant Melanoma
Examination Examination
Lesions Pt. Characteristics On face in sun-exposed areas Fair skin ¯c freckles Pearly nodule ¯c rolled, telangiectactic edge Blue Eyes Light hair Viva Lesion Natural Hx Asymmetry Commonest skin cancer Boarder: irregular 2O to sun exposure Colour: non-uniform Slow growing locally destructive: “rodent ulcer” Diameter > 6mm Do not metastasise Evolving / Elevation
Mx Extras Superficial: curettage Regional LNs Deep: surgical excision ± radiotherapy Fundoscopy Liver
NB. Glass ye + ascites: ocular melanoma SCC Viva Examination Risk Factors Lesion Sun exposure: esp. when young Sun-exposed area Low Fitzpatrick skin type Ulcerated lesion c everted edge ¯ ↑ no. of common moles Actinic keratosis: irregular, crusty, warty lesions +FH Bowen’s: red/borwn, scaly plaques ↑ age Immunosuppression Extras Examine regional LNs Classification Examine rest of skin for other lesions Superficial spreading: 80% Lentigo maligna melanoma: elderly Viva Acral lentiginous: Blacks, soles, palms Nodular: younger, new lesion Evolution Amelanotic: delayed Dx Actinic keratosis → Bowen’s → SCC Staging Risk Factors Breslow Depth Sun exposure Clark’s Levels Immunosuppression: e.g. ciclosporin Genetic: xerodermapigmentosum Mx Chronic trauma: Marjolin’s ulcer Excision biopsy for staging 2O excision margin depends on stage Dx ± lymphadenectomy Excisional biopsy ± adjuvant chemo
Mx Surgery ± radiotherapy
© Alasdair Scott, 2012 74 Neurofibromatosis Tuberous Sclerosis
Examination Examination
Skin Skin Café-au-lait spots Facial adenoma sebaceum: perinasal angiofibromata . ≥6, >15mm diameter Periungual fibromas: hands and feet Axillary freckling Shagreen-patch: roughened leathery skin over sacrum Neurofibromas: gelatinous, violaceous nodules Ash-leaf macule: hypopigmented macule on trunk . Fluoresce ¯c UV/Wood’s lamp Eyes Café-au-lait spots Lisch nodules: melanocytic hamartomas of the iris Extras Extras Fundus: retinal phakomas (dense white patches) Visual acuity: optic glioma Lungs: cystic lung disease Back: scoliosis Abdomen O BP: RAS + phaeochromocytoma . Renal enlargement 2 to cysts Palpable nerves + peripheral neuropathy . Transplanted kidney Signs of phenytoin use (80% epileptic) . Gingival hypertrophy Viva . Hisutism
Epidemiology Autosomal dominant Viva
NF1 . Chr 17 Epidemiology . 1/2500 Autosomal dominant NF2 Chr 16 . Chr 22 . 1/35,000 Ix Skull films: railroad track calcification Complications CT/MRI brain: tuberous masses in cortex Epilepsy Abdo US: renal cysts Sarcomatous change: 5% Echo: cardiomyopathy Scoliosis: 5% Learning difficulty: 10%
Mx MDT: GP and neurologist Excise some neurofibromas Complications . Yearly BP and cutaneous review . Epilepsy Rx Genetic counselling
Differential of Café-au-Lait Spots NF McCune Albright . Case-au-lait spots . Polyostotic fibrous dysplasia . Endocrinopathy → precocious puberty Tuberous Sclerosis
© Alasdair Scott, 2012 75 Spot Skin Diagnoses
Hereditary Haemorrhagic Telangiectasia Erythema Multiforme = Osler-Weber-Rendu Syndrome Examination Examination Symmetrical targetoid lesions Multiple telangiectasia on face, lips and buccal mucosa Especially on the extensor surfaces of peripheries Cyanosis: large pulmonary AVMs No signs of CREST Differential of lesions c¯ central clearing EM Differential Discoid eczema HHT Tinea CREST CLD Viva Ataxia telangiectasia Causes Viva Infections . HSV (70%) Features . Mycoplasma Autosomal dominant Drugs Multiple telangiectasias . Sulfonamides AVMs . NSAIDs . Lungs . Allopurinol . Liver . Penicillin . Brain . Phenytoin
Complications Stevens-Johnson Syndrome and TEN Haemorrhage Severe variants of EM . Epistaxis Nearly always drug-induced . GI haemorrhage SJS: blistering mucosa . Haemoptysis TEN: generalised erythema followed by erpidermal . SAH necrosis and desquamation High output cardiac failure Rx: dexamethasone, IVIg May have ↑ risk of CRC if SMAD4 mutation
Erythema Nodosum Peutz-Jeghers Examination Examination Tender, blue/red, smooth shiny nodules Small pigmented macules on lips, oral mucosa, palms Commonly found on shins and soles . Can be anywhere ¯c SC fat Older lesions leave a bruise Differential Peutz-Jeghers Extras Carney Complex Parotid swelling: sarcoidosis McCune-Albright Red, sore throat: streptococcal infection Simple freckles Joint pains, oral ulceration: Behcet’s
Viva Viva
Causes Features Systemic disease Autosomal dominant mutation of STK11 gene on Chr . Sarcoidosis 19 . IBD Mucocutaneous macules . Behcet’s GI hamartomatous polyps Infection . Streptococcal infection Complications . TB GI hamartomas Drugs . Intussusception . Sulphonamides . GI bleeding . OCP Pancreatic endocrine tumours ↑ risk of cancer: esp. CRC (~20% life-time risk) Other skin manifestations of sarcoidosis Red/brown nodules and papules Lupus pernio: brown plaques, commonly on the nose
© Alasdair Scott, 2012 76 Rheumatoid Hands
Hand Examination Viva
Look Hx Hands Symptoms . Skin: joint erythema, palmar erythema Early morning stiffness . Joint Swelling: MCPs and PIPs Pain . Muscle wasting: interossei, thenar eminence Swelling . Deformity Affect on life Surgical Scars: e.g. carpal tunnel release Extra-articular features: aNTI CCP OR RF Wrist Treatments tried so far + any complications Elbow: nodules
Feel Ix Hot swollen painful joints = active synovitis Bloods Move FBC: ↓Hb, ↓PMN Fixed flexion on prayer position ↑ESR and ↑CRP ↓ ROM Immune . RF: +ve in 70% Function . Anti-CCP: 98% specific, 75% sensitive Precision . ANA: +ve in 30% Power . HLA-DR3/4 Aids X-Ray Presentation Soft tissue swelling Periarticular osteopenia Symmetrical deforming polyarthropathy Loss of joint space Signs of active synovitis Periarticular erosions Signs of cause Deformity . Rheumatoid nodules
. Psoriatic plaques
Differential Mx
Psoriatic arthritis MDT: GP, physio, OT, rheumatologist, orthopod Jacoud’s arthropathy Conservative
Physio Systemic Examination OT: aids and splints Skin: steroid use BP and pulse Medical . ↑ risk of AF Analgesia . ↑ risk of cardiovascular disease Steroids: IM, PO or intra-articular Eyes DMARDS . Epi-/scleritis Biologicals . Keratoconjunctivits sicca Other . Anaemia . CV risk Neck: x-rays for atlanto-axial sublucxation . Prevention of PUD and osteoporosis Heart: pericardial rub Lungs Surgical . Pulmonary fibrosis Carpal tunnel decompression . Percuss for effusions Tendon repairs and transfers . Pleural rub Ulna stylectomy Abdomen: splenomegaly Arthroplasty Urine dip: nephrotic syndrome amyloid or DMARDs)
© Alasdair Scott, 2012 77 RA: Key Facts
Extra-Articular Features: aNTI CCP OR RF Rheumatoid Factor Nodules Anti-IgG IgM Tenosynovitis: de Quervains and atlanto-axial Present in ~70% ¯c RA subluxation Also present in ~10% of normal people and in other Immune: vasculitis, amyloidosis, Sjogren’s, AIHA diseases Cardiac: pericarditis ± effusion . Sjogren’s: 100% Carpal tunnel . SLE: ≤40% Pulmonary: fibrosis, effusions Higher titres associated ¯c Ophthalmic: episcleritis, scleritis, Sjogren’s . More severe disease Renal: nephrosis 2O to amyloidosis . Erosions Raynaud’s . Extra-articular manifestations Felty’s: RA + ↓PMN + splenomegaly
Seronegative RA Anatomy of Rheumatoid Hands RA ¯c absence of RFs Boutonierre’s: rupture of central slip of extensor ~30% of pts are seronegative expansion → PIPJ prolapse through “button-hole” . May have non-classical RFs (e.g. IgG vs. IgG) created by the two lateral slips. . 40% +ve for anti-CCP Swan: rupture of lateral slips → PIPJ hyper-extension Less severe disease ¯c and much less likely to have extra-articular features.
DMARDs All can → BM suppression Atlanto-Axial Subluxation Rheumatoid tenosynovitis → weakening of ligaments Drug Side Effects Monitor supporting the top of the cervical spine Methotrexate BM suppression FBC Posterior subluxation of the odontoid peg can compress Hepatotoxic LFTs the spinal cord Pulmonary fibrosis CXR . Chronic: progressive spastic tetraparesis Sulfasalazine BM suppression FBC . Acute: inhibitory impulses via vagus N. can → Skin rashes LFTs cardiac arrest Hepatitis Pre-operatively ↓ sperm count . Main risk is during intubation Hydroxychloroquine Retinopathy Visual acuity . Arrange upper cervical spine radiograph in gentle flexion Penicillamine Drug-induced lupus Urine
Nephrotic syndrome Gold Nephrotic syndrome Urine Anti-CCP Abs Cyclic Citrullinated Peptide Biologicals . Derived from collagen . Citrullination of arginine 2O to inflammation
Indications Specificity: 98% Severe RA not responding to DMARDs Sensitivity: 75%
Anti-TNF Screen and Rx TB first: tuberculin skin test, CXR American College of Rheumatology Criteria Give ¯c hydrocortisone to ↓ hypersensitivity 4/7 of Agents . Infliximab (Remicade) Morning stiffness >≥1h . Etanercept (Enbrel) Arthritis in 3+ joint areas . Adalimumab (Humira) Arthritis of the hands SEs Symmetrical . Hypersenstivity → rash Rheumatoid nodules . Opportunistic infection: TB +ve RF Radiographic changes B-cell Depletion: Rituximab (anti-CD20 mAb) Screen and Rx TB first: tuberculin skin test, CXR Opportunistic infections . TB . Viral reactivation: Hep B, PML
© Alasdair Scott, 2012 78 Systemic Sclerosis
Examination Hx Symptoms Hands . Swallowing difficulty or reflux . Hands change colour in the cold Scleroderma . Shortness of breath . Tight skin . Hypertension . Can you move skin between your fingers? . Arthralgia Sclerodactyly
Calcinosis Raynaud’s phenomenon → ulceration Ix
Face Urine Beaked nose: “nasal skin tethering” GN: proteinuria and haematuria Microstomia . Ask pt. to open and close mouth ECG Perioral furrowing Arrhythmias Telangiectasia RV strain En coup de sabre: scar down central forehead Bloods Extras FBC: anaemia BP: HTN U+E: renal impairment Lungs: pulmonary fibrosis Abs Cardiac: pulmonary HTN . ANA: +ve in 90% . ↑ JVP . Centromere: limited (80%) . Parasternal heave . Scl70 (topoisomerase): diffuse (70%) . Loud P2 . Peripheral oedema and ascites Imaging Morphea: patches of sclerotic skin Hand radiographs: calcinosis . Localised scleroderma CXR: fibrosis HRCT: fibrosis Echo: pulmonary HTN Completion Hx Other Extra features Lung function tests: restrictive pattern Ba swallow: dysmotility
Classification Localised: morphea Mx Systemic . Diffuse (30%) MDT: GP, rheumatologist, pulmonologist, cardiologist . Limited (70%): including CREST Specific Limited Immunosuppression used for organ involvement or Distribution limited to below elbows and knees and face progressive skin disease. Slow progression: yrs Pulmonary HTN in ~15% Raynaud’s CREST Gloves and hand-warmers . Calcinosis CCBs: e.g. nifedipine . Raynaud’s phenomenon Severe: prostacyclin infusion . Esophageal dysmotility . Sclerodactlyly Renal . Telangiectasia Aggressive blood pressure control ACEi Diffuse Widespread cutaneous and early visceral involvement GI Rapid progression: months PPI for reflux
Pulmonary Hypertension Sildenafil Bosentan: dual endothelin receptor antagonist
Prognosis 50% 5 year survival Mortality: respiratory failure and renal impairment © Alasdair Scott, 2012 79 Systemic Lupus Erythematosus
Examination Viva
Face Hx Malar “butterfly” rash: spares nasolabial folds Systemic: fever, wt. loss, fatigue Discoid rash ± scarring Photosensitivity rashes . Hyperkeratotic papules Arthralgia Oral ulceration Anaemia Features Multisystem inflammatory disease characterised by a Hands T3 hypersensitivity reaction against circulating immune Vasculitic lesions: nail fold infarcts complexes. Raynaud’s phenomenon: digital ulceration F>>M = 9:1 Jacoud’s arthropathy ↑ in Afro-Caribbeans and Asians . Mimics RA . Due to tendon contractures . Reducible on extension Ix
Skin Urine dip Purpura GN: proteinuria, haematuria Livedo reticularis Bloods Extras FBC: anaemia Eyes: keratoconjunctivitis sicca U+E: GN Lungs ESR . Pleural rub Abs . Pleural effusion . ANA: 100% . Fibrosis . dsDNA: 60% sensitive but very specific Cardio: pulmonary HTN . Anti-cardiolipin and lupus anticoagulant Renal Complement . HTN . Dipstick for nephrotic syndrome Disease Activity Neurology ↑ ESR . Focal neurology . ↑ CRP suggests infection . Chorea ↓ C3, C4 ↑ dsDNA titre
Mx
MDT: GP, rheumatologist in specialist SLE clinics
Mild disease: cutaneous and joints only Topical corticosteroids Sun cream Hydroxychloroquine
Moderate disease: + organ involvement Prednisolone Azathioprine
Severe Disease AIHA, nephritis, pericarditis, CNS disease High-dose methylprednisolone Cyclophosphamide
© Alasdair Scott, 2012 80 Ankylosing Spondylitis
Examination Viva
Back Hx Thoracic kyphosis + neck hyperextension Symptoms . “Question mark posture” . Back pain: relieved by exercise ↓ ROM throughout spine . Morning stiffness Protruberent abdomen: diaphragmatic breathing . Anterior chest pain: costochondritis . Eye pain Tests of Movement . Shortness of breath ↑ occiput to wall distance: >5cm Cause Schober’s Test: <5cm . Rashes . Diarrhoea ↓ chest expansion: <5cm . Measure @ nipples
Tests for Sacroiliitis Ix
Direct pressure ECG Sacroiliac stretch AV block . Pain on adduction of hip, c hip and knee flexed ¯ Bloods Extras FBC: anaemia Anterior uveitis ↑ ESR Apical pulmonary fibrosis ↑ CRP Aortic regurgitation Test for HLA-B27 allele (+ve in 95%) Achilles tendonitis Psoriatic plaques: psoriasis can → spondylitis Imaging Spine Completion . Sacroileitis: sclerosis, erosions ECG: AV block (10%) . Bamboo spine Dipstick: proteinuria in amyloidosis Syndesmophytes Hx Ligament calcification Periosteal bone formation CXR Differential . Fibrosis Ankylosing spondylitis Psoriatic arthritis Other Other seronegative spondyloarthropathy DEXA scan . Osteoporosis in 60%
Mx
Conservative Exercise and physio
Medical NSAIDs Local steroid injections Anti-TNF in severe disease Bisphosphonates for osteoporosis
Surgery Hip replacement if involved Spinal osteotomy: rare
© Alasdair Scott, 2012 81 Marfan’s Syndrome
Examination Viva
General Hx Tall ¯c long arms Cardiac problems . Arm-span > height Family history
Hands Genetics Arachnodactyly: encircle waste ¯c hands Autosomal dominant Hyperextensible joints Chromosome 15 Pulse Defect in the fibrillin protein . Radio-radio delay: coarctation . Collapsing Ix Face Echo: aortic root dilatation High-arched palate Genetic testing Lens dislocation: upwards
Chest Mx Pectus carinatum or excavatum Scars from cardiothoracic surgery Surveillance Murmur Monitoring of aortic root size ¯c yearly TTE . AR: pitched early diastolic
. MVP: mid-systolic click, late systolic murmur Rx
β-B and ACEi: slow aortic root dilatation Completion Pre-emptive aortic root surgery: prevent dissection / Formally compare arm-span to height rupture Palpate for thyroid mass Screen family members Hx . Phaeo: episodic headache, sweating, tachycardia
Differential Marfan’s MEN2b Homocystinuria . ↓ IQ . Downward lens dislocation
© Alasdair Scott, 2012 82 Tophaceous Gout Osteoarthritis
Examination Examination Asymmetric oligoarthritis of small joints of hands and feet . Esp. 1st MTP General Gouty tophi: joints, ears, tendons Elderly pt. ↓ ROM and function Walking stick
Extras Hands BMI: obesity Asymmetrical distal interphalangeal joint deformity HTN . Fixed flexion Drug chart: thiazides, cytotoxics Squaring of the CMC joint of the thumb LNs: lymphoproliferative disorder Heberden’s nodes: distal CRF: renal replacement therapy Bouchard’s nodes: proximal Disuse atrophy Differential ↓ function Pseudogout Septic arthritis Extras Calcinosis from CREST Other joint involvement and scars
Differential Viva OA Distal inflammatory arthritis: e.g. psoriatic Hx Drug Hx Viva Diet: beef, pork, lamb, seafood EtOH Hx CV risk: smoking, lipids, BP, DM, FH Pain and stiffness
. Esp. after rest Cause . Worse @ end of day Urate excess . Night pain . Drugs Loss of function . Drinking EtOH . ADLs . Diet: purine rich foods Other joint involvement . Decreased excretion: CRF Social circumstances . Death of cells: leukaemia, lymphoma, psoriasis
Radiographic Features Ix Loss of joint space
Osteophytes Bloods Subchondral sclerosis Lipids Subchondral cysts Glucose Deformity Urate levels
X-ray Mx Punched-out peri-articular erosions Conservative Joint aspiration ↓ wt. if affects wt. bearing joints Negatively birefringent needle-shaped crystals Physio OT Mx Social services if unable to perform ADLs
Acute Medical Remove cause and ↑ hydration Paracetamol 1st: indomethacin or diclofenac NSAIDs ± weak opioids 2nd: colchicine rd Surgical 3 : steroids Joint arthroplasty Chronic Modify precipitants Allopurinol: XO inhibitor Mx cardiovascular risk
© Alasdair Scott, 2012 83 Thyrotoxicosis
Examination Viva
General Hx Thin Symptoms of thyrotoxicosis Anxious . Heat intolerance, sweating . ↑ appetite, ↓wt. . Diarrhoea Periphery . Anxious, irritable Thyroid acropachy . Visual problems, eye pain Palmer erythema . Oligomenorrhoea Hot, sweaty palms Triggers Tachycardia or AF . Child-birth Pre-tibial myxoedema . Stress Proximal myopathy . Infection Other AI disease Neck . Vitiligo Smooth, diffuse goitre . T1DM May have bruit . Addison’s
Eyes Ix
Non-specific Bloods Lid-lag FBC: may be mild anaemia and neutropenia in Graves’ Lid retraction (↑ tone of sup. tarsal muscle) TFTs: ↓TSH, ↑fT4, ↑fT3 Abs: TSH, TPO Graves’ Other: ↑ Ca, ↑ ESR, glucose (exclude DM) Soft tissue swelling and Chemosis Exophthalmos Imaging Ophthalmoplegia: esp. upgaze CXR: retrosternal goitre Exposure keratopathy US: assess for nodularity Optic atrophy Radionucleotide scan (Tc or I) . ↑ uptake in Graves’ Completion . ↓ uptake in thyroiditis
Cardiovascular examination: risk of heart failure Examine the eyes for evidence of optic atrophy Mx
Observation chart Medical Hx Propranolol
Carbimazole . Titrate according to TFTs, or Differential . Block and replace: ↓ risk of hypothyroidism Graves’ Treat for ~12-18mo: ~30% remain euthyroid Thyrotoxic phase of a thyroiditis Simple colloid goitre Radioiodine CI: pregnancy, around children SE NB. Pts. ¯c Graves’ are often hyperthyroid but may become . May worsen thyroid eye disease eu- or hypo-thyroid. . Most pts. become hypothyroid
Thyroidectomy SE . Haematoma . Recurrent laryngeal nerve injury . Hypoparathyroidism . Hypothyroidism
Thyroid Eye Disease Stop smoking: worsens the prognosis Symptomatic: artificial tears, dark glasses, elevate bed Severe . High-dose steroids . Surgical decompression
© Alasdair Scott, 2012 84 Hypothyroidism
Examination Viva
General Hx Large body habitus Symptoms Depressed mentation . Cold intolerance Gruff voice . Appetite but ↑ wt. . Constipation Skin . Menorrhagia Dry skin . Lethargy, tiredness . Depression Other AI disease: vitiligo Cause . Neck pain Periphery . Iatrogenic Cool Drugs Bradycardia Radioiodine Proximal myopathy Surgery Slow-relaxing reflexes Associated AI disease . Vitiligo Face . T1DM Coarse, puffy looking features . Addison’s “Peaches-and-cream” complexion Loss of lateral eyebrows Xanthelasma Ix Thin hair Bloods Neck FBC: ↑MCV ± macrocytic anaemia Goitre U+E: ↓Na Thyroidectomy scar TFTs: ↑TSH, ↓fT4 Abs: TPO Completion Other: ↑ cholesterol, glucose (exclude DM) Cardiac exam: evidence of failure Neurological exam CXR . Carpal tunnel syndrome Pericardial effusion . Ataxia CCF Observation chart Hx Mx Thyroxine Differential . Titrate to clinical response and TSH No goitre . If elderly introduce slowly to prevent precipitation . Atrophic thyroiditis of angina / MI. . Radioactive iodine . Clinical improvement takes ~2wks . Drugs: e.g. amiodarone Goitre: Hashimoto’s Scar: thyroidectomy Causes of Hypothyroidism
Primary O Other Differentials Autoimmune: 1 atrophic and Hashimoto’s thyroiditis Iatrogenic: rugs, surgery radioiodine Smooth Goitre Iodine deficiency: e.g. Derbyshire neck Simple colloid goitre Genetic: thyroid agenesis Hashimoto’s Secondary Graves’ Hypopituitarism (v. rare) Nodular Goitre Multinodular goitre Multiple adenomas
Solitary nodule Dominant nodule of a multinodular goitre Adenoma Malignancy
© Alasdair Scott, 2012 85 Acromegaly
Examination Viva
Hands Hx Spade-like: compare directly ¯c your own Symptoms Tight rings . Headaches ↑ skin fold thickness . Problems ¯c vision Boggy, sweaty palms: if active . Change in appearance Thenar wasting + loss of sensation: carpal tunnel syn. . Hat and ring size ↑ . Pain or paraesthesia in hands Arms . Snoring, stop breathing when sleeping (OSA) ↑BP Associations . Polyuria and polydipsia . Chest pain, SOB, palpitations Face . Change in bowel habit Coarse facial features: large nose, big ears Cardiac risk factors Prominent supra-orbital ridges Macroglossia Widely spaced teeth: “show me your gums” Ix
Prognathism: inspect from side Urine dip: glycosuria Look up nose for scars
ECG: LVH, ischaemia Extras Eyes: bitemporal hemianopia Bloods Neck: goitre + ↑ JVP ↑ IGF-1 Armpits: acanthosis nigricans Glucose tolerance test: non-suppression of GH Abdomen: organomegaly Other pituitary hormones: TFT, PRL, testosterone Myopathy: stand from chair w/o using hands Glucose
Completion Imaging Urine dip: glycosuria CXR: cardiomegaly ECG: LVH and ischaemia MRI of pituitary fossa: pituitary adenoma See any previous photographs Hx Other Visual perimetry
Macroglossia Complications Acromegaly IGT and DM Amyloidosis Cardiovascular disease: leading cause of death Hypothyroidism CRC Down’s syn. Mx Acanthosis Nigricans Endocrine General . Obesity and metabolic syndrome MDT: GP, endocrinologist, neurosurgeon . DM CV risk . Cushing’s . Acromegaly 1st line: trans-sphenoidal excision Malignancy Complications . Gastric Ca . Meningitis . Pancreatic Ca . Diabetes inspidus . Panhypopituitarism
2nd line: medical therapy Somatostatin analogues: octreotide GH antagonist: pegvisomant Da agonists: cabergoline
3rd line: radiotherapy
Follow upyYearly Bloods: GH, PRL Visual fields ECG ± MRI head
© Alasdair Scott, 2012 86 Cushing’s Syndrome
Examination Viva
Hands Hx Thin skin: compare ¯c your own Symptoms Evidence of cause: e.g. RA . Headaches . Visual disturbance Arms . Wt. gain BP . Bruising Cause Face . Steroid use . Smoking Moon face: “Cushingoid facies” Acne Causes Hirsutism
ACTH-independent Abdomen Steroids: commonest by far Central obesity Adrenal adenoma / carcinoma / hyperplasia Purple striae Carney complex
Extras ACTH-dependent Proximal myopathy: stand from sitting Cushing’s disease Back SCLC . Inter-scapular fat pad . Palpate spine for tenderness (crush #) Ix . Kyphosis Urine dip: glycosuria Completion Urine dip: glycosuria Confirm ↑ cortisol Visual fields: bitemporal hemianopia 24h urinary free cortisol Respiratory exam: wheeze, fine crackles Loss of diurnal variation: ↑ midnight cortisol Low dose-dexamethasone suppression test Significant Negative Pigmentation Investigate Cause Signs of cause: RA, clubbing, COPD ACTH levels . ↑: pituitary adenoma or ectopic ACTH . ↓: iatrogenic or adrenal Differential High-dose dexamethasone suppression test Cushing’s syndrome: effects of ↑ corticosteroids . >50% cortisol suppression if pituitary adenoma Cushing’s disease MRI pituitary fossa ± whole body CT . Bilateral adrenal hyperplasia 2O to ACTH- Bilateral inferior petrosal sinus vein sampling secreting pituitary tumour . Distinguish between ectopic ACTH and CD. . Usually a basophilic microadenoma
Complications Steroid complications Osteoporosis HTN and CV risk
Mx
General Mx Control BP Anti-DM Bisphosphonates
Cause Pituitary adenoma: trans-sphenoidal excision Adrenal adenoma: adrenelectomy Ectopic ACTH . Tumour excision . Metyrapone: inhibits cortisol synthesis
© Alasdair Scott, 2012 87 Addison’s Disease
Examination Viva
Main Signs Hx Medic alert bracelet Symptoms Hyperpigmentation . Wt. loss + anorexia . Palmar creases . Lethargy, depression . Scars . Dizziness, faints . Buccal mucosa Cause Postural hypotension . Other AI disease: DM, vitiligo . TB Extras Signs of AI disease . DM Ix . Vitiligo . Hyperthyroidism Bloods Signs of TB U+E: ↓Na, ↑K ↓ glucose Abs: 21-hydroxylase (+ve in 80% ¯c AI disease)
Confirm Dx 8am cortisol: low 8am ACTH: high SynACTHen test: no ↑ in cortisol
Other CXR: TB AXR: adrenal calcification
Mx
Acute 0.9% NS IV rehydration 100mg hydrocortisone IV Rx cause: e.g. infection
Chronic Replace . Hydrocortisone . Fludrocortisone Pt. education and advice . Don’t stop steroids suddenly . ↑ dose during illness / stress . Wear medic alert bracelet . Carry steroid card
© Alasdair Scott, 2012 88 Steroids: Key Facts Neuro Shorts
Side Effects Hemiballismus
MSK Features Proximal myopathy Involuntary flinging motions of the extremities Osteoporosis Continuous and random Isolated to one side of the body Endocrine HPA suppression Cause Obesity Damage to the subthalamic nucleus DM . Usually a small infarct in diabetics . MS Metabolic Na and fluid retention Mx HTN Often resolves spontaneously Hypokalaemia Haloperidol
Immune ↑ susceptibility to infection Benign Essential Tremor
CNS Features Depression Action / postural tremor Psychosis . Worse with movement Exacerbating factors Eye . Anxiety Cataracts . Caffeine Glaucoma Relieving factors . Alcohol . Sleep Management Considerations Use steroid-sparing agents where possible Cause Use lowest dose possible Autosomal dominant Don’t stop suddenly or rapidly ↓ dose . Withdraw gradually if used >2-3wks Mx ↑ dose if stressed: illness or trauma Alcohol Caution ¯c other drugs: e.g. NSAIDs Propranolol Primidone: anti-epileptic Consider osteoporosis and PUD prophylaxis
Advice to Patients Don’t stop steroids suddenly Consult doctor when unwell Carry a steroid card / alert bracelet Avoid OTCs: e.g. NSAIDs
© Alasdair Scott, 2012 89 Surgery
Contents Superficial Lesions ...... 91 Abdomen ...... 105 Breast ...... 128 Vascular ...... 134 Musculoskeletal ...... 150 Practical Surgery ...... 168 Surgical Radiology ...... 178 Instruments ...... 195 Key Anatomy ...... 217
© Alasdair Scott, 2012 90 Superficial Lesions
Contents Lump Examination ...... 92 Skin Lumps ...... 93 Goitre ...... 95 Diffuse Goitre: Key Facts ...... 96 Solitary Thyroid Nodules ...... 97 The Neck ...... 98 Midline and Anterior Triangle Lumps ...... 99 Posterior Triangle Lumps ...... 100 Cervical Lymphadenopathy ...... 101 Salivary Glands ...... 102 Hypertrophic and Keloid Scars ...... 103 Digital Clubbing ...... 103
© Alasdair Scott, 2012 91 Lump Examination
Key Points
Site Colour Tenderness Fluctuance Size Consistency Temperature Pulsatility Shape Contour Transilluminence Spread (LNs) Cough impulse Tethering
Notes Is it intradermal or subcutaneous? . Intradermal Cannot draw skin over lump Sebaceous cyst, neurofibroma, dermatofibroma . Subcutaneous Can move lump independently from skin Lipoma, ganglion, lymph node Fluctuance: assess ¯c press test Consider auscultating for bowel sounds or bruits (AVMs).
Completion Examine draining lymph nodes Examine neurovascular function distal to lump. Look for similar lumps elsewhere
Hx
Onset When and why did you notice it? Any predisposing event: e.g. trauma?
Continued Symptoms What symptoms does it cause: e.g. pain? How has it changed? Have you noticed other lumps?
Treatments and Cause What treatments have you tried? What do you think the cause is?
© Alasdair Scott, 2012 92 Skin Lumps
Lump Pathology Features Viva Mx Lipoma Benign tumour of mature adipocytes Inspection Occur anywhere fat can expand Dercum’s Disease / Adiposis dolorosa Non-surgical - i.e. NOT scalp or palms - Multiple, painful lipomas Sarcomatous change probably doesn’t - inc. spermatic cord, - Assoc. peripheral neuropathy Surgical Excision occur. submucosa - Obese, postmenopausal women
Liposarcomas arise de novo May be a scar from recurrence Familial Multiple Lipomatosis - Older pts. - Deeper tissues of the lower limbs Madelung’s Disease Palpation Soft Subcutaneous Bannayan-Zonana Syndrome Imprecise margin - Autosomal dominant Fluctuant - Multiple lipomas - Macrocephaly - Haemangiomas
Sebaceous Epithelial-lined cyst containing keratin Inspection Occur @ sites of hair growth Complications Non-surgical cyst - Scalp, face, neck, chest, back - Infection: pus discharge Two histological subtypes - NOT soles or palms - Ulceration Surgical Excision Central Punctum - Calcification 1) Epidermal Cyst - Arise from hair follicle infundibulum Cock’s Peculiar Tumour - Large ulcerating trichilemmal cyst 2) Trichilemmal Cyst / Wen Palpation Firm on the scalp - Arise from hair follicle epithelium Smooth - Resemble an SCC - Often multiple Intradermal - May be autosomal dominant Gardener’s Syndrome: FAP + - Thyroid tumours - Osteomas - Dental abnormalities - Epidermal cysts
Ganglion Cystic swelling related to a synovial-lined Inspection Can be found anywhere Differential Non-Surgical structures: joint, tendon Often dorsum of hand or wrist - Bursae - Aspiration followed by May be scar from recurrence - Cystic protrusion from synovial cavity of 3wks of immobilisation Myxoid degeneration of fibrous tissue Weakly transilluminable arthritic joint. Surgical Excision Contain thick, gelatinous material Palpation Soft - Recurrence in 50% Subcutaneous - Neurovasc damage May be tethered to tendon Seborrhoeic Benign hyperplasia of basal cell layer Stuck on appearance Non-surgical keratosis - Hyperkeratosis: corneum thickening Dark brown Surgical: superficial shaving or cautery - Acanthosis: spinosum thickening Greasy - Hyperplasia of basal cells
© Alasdair Scott, 2012 93
Lump Pathology Features Viva Mx Neurofibroma Benign nerve sheath tumour arising Inspection Solitary or multiple NF 1: von Recklinghausen’s Surgical excision only from schwann cells. Pedunculated nodules - AD, Chr 17 indicated if malignant - Cafe-au-lait spots (>6, >15mm) growth suspected. Palpation Fleshy consistency - Freckling Pressure can → paraesthesia - Neurofibromas Local regrowth is common Extras Examine skin: Café-au-Lait Spots - Lisch nodules (iris) Examine the eyes: Lisch nodules Examine the axilla: Freckles Examine the cranial nerves (esp. 8) BP
Papilloma Overgrowth of all layers of the skin ¯c a Skin tag / fibroepithelial polyp Excision + diathermy to central vascular core. control bleeding. Pedunculated Flesh coloured
Pyogenic Rapidly growing capillary haemangioma. Inspection Most commonly on hands, face, gums Possible assoc. ¯c prev trauma Non-surgical granuloma and lips. More common in pregnancy - regression is uncommon Neither pyogenic, nor a granuloma Bright red hemispherical nodule May have serous / purulent discharge Surgical Palpation Soft - curettage ¯c diathermy of Bleed very easily the bases
Dermoid Cyst Epidermal-lined cyst deep to the skin Inspection Smooth spherical swelling Child / young adult: congenital Congenital Sites of embryological fusion - CT to establish extent Congenital / Inclusion Cyst Scar from recurrence Adult: acquired - Surgical excision - Developmental inclusion of - Ask re. trauma epidermis along lines of skin fusion Acquired - Midline of neck and nose - Surgical excision - Medial and lateral ends of eyebrows Palpation Soft Non-tender Acquired / Implantation Cyst Subcutaneous - Implantation of epidermis in dermis - Often 2O to trauma (e.g. piercing)
Dermato- Benign neoplasm of dermal fibroblasts Inspection Can occur anywhere Differential Excision + histology fibroma Mostly on the lower limbs of young to - Malignancy: melanoma, BCC middle-aged women
Small, brown pigmented nodule Palpation Firm, woody feel: characteristic Intradermal: mobile over deep tissue
Kerato- Benign overgrowth of hair follicle cells Fast-growing Regress w/i 6wks acanthoma Cytologically similar to well-differentiated Dome-shaped ¯c a keratin plug Excise to reduce scarring SCCs Intradermal and obtain histology © Alasdair Scott, 2012 94 Goitre
Thyroid Examination Viva
Preparation Goitre Differential Ensure exposure down to the clavicles Position pt. away from a wall Diffuse Enlargement Are you comfortable: not too hot or cold? Smooth Hoarse voice: recurrent laryngeal nerve palsy . Simple colloid goitre . Graves General Inspection . Thyroiditis: Hashimoto’s, de Quervain’s, Riedel’s Nervous/agitated or slow/lethargic Nodular . Multinodular goitre Body habitus . Multiple adenomas Sweaty
Skin and hair condition Solitary Nodule
Dominant nodule of a multinodular goitre Hands Adenoma Thyroid acropachy Malignant Palmar erythema O . 1 : papillary, follicular, medullary, anaplastic Temperature, sweating . 2O: breast Fine tremor: piece of paper on out-stretched hands Cyst Pulse: rate and rhythm (AF in thyrotoxicosis) Commonest Causes of Eyes Sympathetic Overstimulation Hyperthyroidism . Lid Retraction: sclera between iris and upper lid Graves’ (~2/3) . Lid Lag Toxic Multinodular Goitre ( = Plummer’s) Graves . Oedema: periorbital and chemosis Hypothyroidism . Exophthalmos: inspect from above and side Primary atrophic . Ophthalmoplegia: esp. upgaze palsy Hashimoto’s thyroiditis Iodine deficiency: commonest Worldwide Exophthalmos Differential Orbital cellulitis Hx Trauma Thyroid status Masses: meningioma, glioma Compression symptoms: dysphagia, difficulty breathing Carotid cavernous fistula: pulsatile exophthalmos Previous thyroid medications or surgery Idiopathic orbital inflammatory disease
Neck Ix
Inspect: from front and side. Bloods TFTs: TSH, fT3, fT4 Look for collar scars 2+ Ask pt. stick out tongue and swallow water Other: FBC, Ca , calcitonin, ESR Look in mouth for lingual thyroid Antibodies: anti-TPO, TSH
Palpate: from behind Imaging Palpate masses: can you get under it? CXR: goitre and mets Repeat the swallow and protrusion test High resolution US Lymphadenopathy CT Check for tracheal deviation. Radionucleotide (Tc or I) scan: hot vs. cold
Percuss: for retrosternal extension Histology or cytology FNAC (can’t distinguish adenoma vs. follicular Ca) Auscultate: thyroid bruits (Graves’) Biopsy
Legs Laryngoscopy Pretibial myxoedema: brown swelling above lat. malleoli Important pre-op to assess vocal cords Proximal myopathy: ask pt. to stand from chair (Graves) Ankle reflexes: kneel on chair Discussion . Slow relaxing: hypothyroidism Multinodular goitre . Brisk: hyperthyroidism Graves’ Thyroiditis Completion Thyroid Nodules Observation chart Thyroid surgery History © Alasdair Scott, 2012 95 Diffuse Goitre: Key Facts
Multinodular Smooth
Features Simple Colloid Goitre Commonest goitre in UK Hyperplasia of gland 2O to ↑TSH release Progression of simple diffuse goitre to nodular enlargement. Causes Middle-aged women Iodine deficiency: commonest worldwide Positive family Hx ↑ physiological demand: pregnancy, puberty Over-activity in parts may → mild thyrotoxicosis Goitrogens: e.g. Li, uncooked cabbage . Plummer’s Syndrome Malignant change occurs in 5% of untreated MNGs Rx Not usually required Mx Thyroxine or ↑ dietary iodine Most pts. don’t require intervention
Non-Surgical Grave’s Disease: ↑ uptake Thyroxine → regression in 50-70% . Suppress TSH Epidemiology Toxic Multinodular Goitre Prev: 0.5% . Propranolol + carbimazole . 60% of cases of thyrotoxicosis . Radioiodine Sex: F>>M=9:1 Age: 40-60yrs Surgical Indications: 5 Ms Features . Mechanical obstruction Diffuse goitre ¯c bruit . Malignancy Triggers: stress, infection, child-birth . Marred beauty: cosmetic reasons Ophthalmopathy . Medical Rx failure: thyrotoxicosis . Oedema: periorbital and chemosis . Mediastinal extension: can’t monitor changes . Exophthalmos → exposure keratopathy Procedure . Ophthalmoplegia: esp. upgaze palsy . Total thyroidectomy . Optic neuropathy: ↓ acuity and RAPD . Removes risk of malignant change in thyroid Dermopathy: pre-tibial myxoedema remnant. Acropachy: periosteal reaction (clubbing is soft tissue)
Pathology of Eye Disease Plummer’s vs. Graves Exophthalmos . Retro-orbital inflammation and lymphocytic Plummer’s Graves’ infiltration → orbital oedema Older Younger . 2O to anti-TSH abs Nodular enlargement Diffuse enlargement Lid-lag No extra features Extra Features . Not Graves’ specific . Eye signs . Sympathetic overstimulation → restrictive . Dermopathy myopathy of LPS . Acropachy AF in 40% AF relatively uncommon Associations No assoc. AI disease Assoc. ¯c AI disease T1DM Vitiligo Pernicious anaemia
Rx Medical: propranolol + carbimazole Radioiodine Surgical: subtotal or total thyroidectomy
Thyroiditis: ↓ uptake Hashimoto’s de Quervain’s Subacute lymphocytic: post-partum Riedel’s
© Alasdair Scott, 2012 96 Solitary Thyroid Nodules Benign
Pathology Features Mx Follicular Adenoma 2-4cm mass Hot ± thyrotoxicosis - <3cm: radioiodine Indistinguishable from follicular Ca on FNAC - >3cm: surgical excision - need excision histology to confirm Dx Cold: excision Thyroid Cyst True cysts are rare Cytology can be false negative in 30% Mostly colloid degeneration, necrosis or <4cm: aspirate and review in 6/12 haemorrhage w/i benign or malignant tumours Surgical Excision Only benign if abolished by aspiration - >4cm - Blood-stained aspirate - Recurrence after aspiration
Malignant
Disease Frequency Age Cell Origin Spread Mx Papillary 80% 20-40 Follicular cells Nodes and lung Total thyroidectomy + - JDG node = T4 to suppress TSH Assoc. ¯c Tg tumour marker lateral aberrant ± node excision irradiation thyroid ± radioiodine
May be multifocal >95% 10ys Follicular 10% 40-60 Follicular cells Blood → bone Total thyroidectomy + F>M = 3:1 and lungs T4 suppression + Tg tumour marker Radioiodine
>95% 10ys Medullary 5% MEN2: young Parafollicular C-cells Do phaeo screen pre-op 30% are familial Sporadic: 40-50 Thyroidectomy + - e.g. MEN2 CEA and calcitonin Node clearance markers Consider radiotherapy Anaplastic Rare >60 Undifferentiated Rapid growth Usually palliative F>M = 3:1 follicular cells Aggressive: local, May try thyroidectomy + LN and blood. radiotherapy
<1% 10ys Lymphoma 5% Lymphocytes Chemoradiotherapy - MALToma in Hashi’s
Thyroid Nodule Facts Complications of Thyroid Surgery F>M = 4:1 4th and 5th decades Early 10% malignant in middle aged Reactionary haemorrhage → haematoma 50% malignant in young and elderly Recurrent laryngeal nerve palsy FNAC is most important Ix Hypocalcaemia Thyroid storm Ix: Triple Assessment Clinical examination Late US Hypothyroidism and hypoparathyroidism FNAC Recurrence of disease Keloid scar Isotope scan: used if pt. is hyperthyroid
Men 1: Wermer Syndrome Practicalities of Thyroid Surgery Pituitary adenoma Render euthyroid pre-op ¯c antithyroid drugs Parathyroid hyperplasia or adenoma Stop 10 days prior to surgery (they ↑ vascularity) Pituitary endocrine tumour Alternatively just give propranolol Check for phaeo pre-op in medullary carcinoma Men 2 Laryngoscopy: check vocal cords pre- and post-op Medullary thyroid Ca Phaeochromocytoma A: hyperparathyroidism B: marfanoid habitus © Alasdair Scott, 2012 97 The Neck
Examination Differential
Position Solid Cystic Preparation Anywhere Lipomas and Sebaceous Cysts Ensure exposure down to the clavicles Midline Ectopic thyroid tissue Thyroglossal Cyst Position pt. away from wall Thyroid isthmus mass Inclusion dermoid Ant. Triangle LNs Branchial Cyst Inspect: Scars, Sinuses, Masses Chemodectoma Laryngocele Neck Goitre . Look very carefully for scars: collar incision Parotid tumour . Look for masses: which triangle? Post. Triangle LNs Cystic Hygroma . Does mass move on swallowing or tongue Cervical Rib Pharyngeal Pouch protrusion? Pancoast tumour Mouth . Lingual thyroid . Ranula (ruptured salivary gland → mucocele) Ix Eyes US shows consistency . Thyroid eye disease FNAC or core biopsy Consider CT / MRI to define relations
Palpate Best from behind the pt. Hx Palpate while pt. swallowing and protruding tongue Assess for lymphadenopathy Onset Tracheal deviation When and why did you notice it? Any predisposing event: e.g. trauma?
Percuss Continued Symptoms Retrosternal extension What symptoms does it cause: e.g. pain? How has it changed? Have you noticed other lumps? Auscultate Treatments and Cause Listen over lump for bruits. What treatments have you tried? Gurgle of pharyngeal pouch What do you think the cause is?
If no obvious masses / skin lesions Check neck pulses and listen for bruits Test sensation and neck movements
Completion If goitre → asses thyroid status Lump history
© Alasdair Scott, 2012 98 Midline and Anterior Triangle Lumps
Lump Pathology Presentation Viva Mx Thyroglossal Cyst Persistence of any part of the thyroglossal duct Young pt. Differential Sistrunk’s Operation which marks the developmental descent of the - Thyroid nodule and masses - Inject patent tract ¯c dye at start thyroid from the foramen caecum Fluctuant midline neck lump - Dermoid / epidermal cysts - Excise cyst and patent tract Usually subhyoid - Subhyoid bursa - Need to central portion of hyoid Ectopic thyroid tissue can be found anywhere as tract runs through it. along this path of descent. Protrusion of tongue → elevation Epidemiology Swallowing → elevation - Rare Cysts may contain thyroid tissue which can - M=F undergo malignant change → papillary Ca May see opening of a thyroglossal - 40% in 1st decade sinus Complications Following removal there will be a - Infection transverse incision just above the - Sinus formation thyroid cartilage. - Development of Ca - Recurrence post-op
Branchial Cyst Failed fusion of 2nd and 3rd branchial arches Young pt. Complications Surgical Excision - Infection - Bonney’s blue dye can be Lined by squamous epithelium Ant. margin of SCM at junction of - Sinus formation injected into fistula to allow more upper and middle thirds - Recurrence post-op accurate excision Contain “glary” fluid ¯c cholesterol crystals - May be difficult due to proximity Firm, fluctuant ovoid swelling of carotids
Opaque on transillumination Medical - Sclerotherapy is an option May be opening from branchial sinus
Chemodectoma Very rare Ant. triangle @ the angle of the jaw Ix Surgical Excision - Duplex US Tumour of the paraganglion cells of the carotid Pulsatile - Angiography: splaying Ultrasonic surgical dissection bodies: measure pH and PaO2 and PaCO2 - CT / MRI Moves laterally but not vertically Radiotherapy Located @ the carotid bifurcation - Large tumours Pressure can → syncope - Unfit for surgery Mostly benign (5% malignant) May be bilateral
© Alasdair Scott, 2012 99 Posterior Triangle Lumps
Lump Pathology Presentation Viva Mx Cystic Hygroma Congenital multicystic lymphatic malformation Usually paediatric Complications Surgical excision Lobulated cystic swelling - Obstruction of swallowing Hypertonic saline sclerosant Soft and fluctuant - Respiratory obstruction Compressible Transilluminate brilliantly ↑s in size when infant coughs / cries
Look in the oropharynx - Cyst may extend into retropharyngeal space
Pharyngeal Pouch Herniation of pharyngeal mucosa through its Elderly patient Symptoms Non-surgical muscular coat at its weakest point. - Regurgitation - If small and asymptomatic - Pulsion diverticulum Left sided cystic swelling - Dysphagia Surgical: Dohlman’s Procedure Killian’s dehiscence Palpation → gurgling Complications - Minimally invasive endoscopic - Between thyro- and crico-pharyngeal muscles - Aspiration → pneumonia stapling that form the inferior constrictor Hallitosis - Diverticular neoplasia (<1%)
Ix - Ba swallow
Cervical Rib Overdevelopment of transverse process of C7 Hard swelling: mostly asymmpto Surgical excision
Occur in 1:150 Can → vascular symptoms - Due to subclavian A. compression - Subclavian steal - Raynaud’s
Can → neurological symptoms - Compress lower roots of brachial plexus, T1 or stellate ganglion - Wasting of intrinsic hand muscles - Paraesthesia along medial arm
© Alasdair Scott, 2012 100 Cervical Lymphadenopathy
Examination Viva
Key Features History Consistency Symptoms from the lumps Number . e.g. EtOH-induced pain Fixation General symptoms Symmetry . Fever, malaise, wt. loss Tenderness Systemic disease PMH Technique Previous operations Ask pt. to drop chin to relax muscles Social history Chin backwards → pre-auricular Ethnic origin Down anterior cervical chain HIV risk factors Supra- and infra-clavicular nodes Up posterior cervical chain Mastoid → occipital nodes Causes: LIST Lymphoma and Leukaemia Additional Examination Infection Face and scalp for infection or neoplasm Sarcoidosis Chest exam: infection or neoplasm Tumours Breast examination . ENT Formal full ENT examination . Breast . Lung Rest of reticuloendothelial system . Gastric
Infection Bacterial . Tonsillitis, dental abscess . TB . Bartonella henselae (Cat scratch disease) Viral . EBV . HIV Protozoal . Toxoplasmosis
Ix
Blood FBC, ESR, film (atypical lymphocytes) TFTs, serum ACE Monospot test, HIV test
Radiological US CT scan
Pathology FNAC Excision biopsy
© Alasdair Scott, 2012 101 Salivary Glands
Examination Viva
Inspection Hx Skin changes: swelling, scars, sinuses Pain or swelling related to food: calculi Swelling / discrete lump Fever / malaise: mumps . Parotid or submandibular? Dry eyes / mouth: Sjogren’s . Bilateral or unilateral? SOB: sarcoid Facial asymmetry Inside the mouth ¯c a pen torch nd . Stenson’s duct opposite the 2 maxillary molar Salivary Gland Neoplasms . Wharton’s duct adjacent to the frenulum linguae . Inflammation, stone, pus Features 80% in the parotid gland 80% benign: 80% are pleiomorphic adenomas Palpation Only 60% of submandibular gland tumours are benign Any tenderness? Palpate from behind Common Types Test muscle fixity: ask pt. to clench teeth Benign Palpate for cervical lymphadenopathy . Pleiomorphic adenoma: 80% <50yrs . Adenolymphoma: Warthin’s tumour Completion >50yrs Bimanual palpation of parotid and submandibular ducts Smoking is important risk factor for stones. Malignant st Bimanual palpation of submandibular gland . 1 : Mucoepidermoid nd Test CN7 . 2 : Adenoid cystic Perform full ENT examination
Malignant Features Differential Facial nerve palsy Rapid growth and pain Diffuse Swelling of Whole Gland Hyperaemic, hot skin Infection: Parotitis Hard consistency Autoimmune: Sjogren’s Fixity to skin or underlying muscle Infiltration: Sarcoid Systemic: Chronic liver disease, DM, anorexia, bulimia Ix FNAC Localised Swelling MRI: determine deep lobe involvement Calculus Lipoma Rx Salivary gland neoplasm Benign Leukaemia: ALL . Superficial: superficial parotidectomy . Deep: total parotidectomy Malignant . Total parotidectomy ± adjuvant radiotherapy
Complications Immediate . Facial nerve injury . Reactionary haemorrhage Early . Temporary facial weakness: neuropraxia . Salivary fistula . Loss of pinna sensation: greater auricular nerve damage. Late: Frey’s Syndrome (gustatory sweating) . Facial sweating while eating . Re-innervation of divided sympathetic nerves by fibres from the secretomotor branch of auriculotemporal branch of CNV3
© Alasdair Scott, 2012 102 Hypertrophic and Keloid Scars Digital Clubbing
Features Causes Scar more prominent than surrounding skin Gastrointestinal CLD: esp. PBC Hypertrophic IBD: esp. Crohn’s Scar confined to wound margins Coeliac disease Across flexor surfaces and skin creases GI lymphoma Appear soon after injury and regress spontaneously Any age: commonly 8-20yrs Respiratory M=F Chronic suppurative lung disease All races . CF / bronchiectasis . Abscess . Empyema Keloid Malignancy: adenocarcinoma or mesothelioma Scar extends beyond wound margins Pulmonary fibrosis Earlobes, chin, neck, shoulder, chest Appear months after injury and continue to grow Cardiac Puberty to 30yrs Infective endocarditis F>M Congenital cyanotic heart disease Black and Hispanic . Fallot’s . Transposition Atrial myxoma: e.g. in Carney Complex Wound Associations Infection Miscellaneous Trauma Familial Burns Thyroid acropachy Tension Axillary artery aneurysms and brachial AVMs Certain body areas
Pathophysiology Mx Exact aetiology unknown Platelet clumps and megakaryocytes bypass the lungs Non-surgical and impact in digital capillaries. They release growth factors such as PDGF → clubbing Mechanical pressure therapy
Topical silicone gel sheets
Intralesional steroid and LA injections Stages Surgical 1: bogginess of the nail bed 2: loss of the nail angle Revision of scar ¯c closure by direct suturing 3: ↑ curvature
4: expansion of the distal phalanx
© Alasdair Scott, 2012 103 Abdomen
Contents Abdominal Examination ...... 105 Inguinal Hernia ...... 106 Inguinal Hernia: Key Facts ...... 107 Incisional Hernia ...... 108 Umbilical and Paraumbilical Hernia ...... 109 Epigastric Hernia ...... 110 Examination of a Scrotal Lump ...... 111 Hydrocele ...... 112 Epididymal Cyst ...... 113 Varicocele ...... 113 Testicular Tumour ...... 114 Stomas ...... 115 Stomas: Key Facts ...... 116 Surgical Scars ...... 117 Colonic Resections ...... 119 Inflammatory Bowel Disease ...... 122 IBD: Key Facts for Surgery ...... 123 Surgical Jaundice...... 124 Right Iliac Fossa Mass ...... 125 Abdominal Masses...... 126
© Alasdair Scott, 2012 104 Abdominal Examination
Set-Up The Abdomen Pt. exposed from nipples to pubis Lying flat Inspection Distension: fat, fluid, flatus, faeces, foetus Peripheral Stigmata Scars: describe location and healing Stomas: site, contents, lumens, spout General Drains: contents, type General condition of the pt. Asymmetry: masses . Jaundice (BR >50mM), pallor (Hb <7g/dL) . Cachexia Abdominal distension Palpation Abdominal asymmetry Kneel on floor and look @ pts. face for pain Drains, stomas, scars . Superficial, then deep Ask pt. to cough and lift head from bed . Describe any masses Liver Hands . Note consistency, edge, tenderness, pulse . Percuss CLD Abdominal Clubbing ∆∆ Spleen . Role pt. towards you 1. Clubbing Cirrhosis: esp. c PBC ¯ . Percuss if palpable 2. Leukonychia IBD 3. Terry’s nails Kidneys Coeliac . White ground glass nail . Left then right GI lymphoma . Loss of lunula . Ballot ¯c respiration . Pink tips AAA 4. Palmer erythema . Just to left on midline, above the umbilicus 5. Dupuytron’s contracture 6. Asterixis Percussion Anaemia Percuss any masses or organomegaly Koilonychia If distended, percuss for shifting dullness Pale palmer creases
Pulse and BP Auscultate Face Bowel sounds Aortic bruits Eyes Keiser Fleischer rings Pale conjunctivae Palpate Ankles for Oedema Jaundice Xanthelasma Completion Mouth Digital rectal examination Telangiectasia: HHT External genitalia Pigmented macules: Peutz-Jehgers Stand pt. to examine hernial orifices Stomatitis and glossitis Dipstick the urine Ulceration Look at the observation chart Jaundice
Neck Inspect for scars: venous lines Sit forward and palpate for lymphadenopathy: esp. Virchow’s node in left supraclavicular fossa
Back Spider Naevi Inspect back ¯c pt. sitting forward Central arteriole ¯c radiating vessels Spider naevi Fill from the centre Scars: e.g. loin incisions . Telangiectasia fill from edge Distribution of SVC Chest >4 abnormal Spider naevi ∆∆: CLD, OCP, pregnancy Gynaecomastia Loss of axillary hair
© Alasdair Scott, 2012 105 Inguinal Hernia
Examination Viva
Set-Up Groin Lump Differential Expose pt. from umbilicus to knees Begin ¯c pt. standing Tissue Lump Skin Sebaceous cyst, psoas abscess Fat Lipoma Inspection Connective tissue Fibroma Look for any masses in groins. Ask pt. to cough. Nerves Neuroma of femoral N. LN Comment on appearance of mass Lymphatics Saphena varix . Site, size Veins . Features of inflammation (suggesting strangulation) Arteries Femoral artery aneurysm Inguinal canal Inguinal hernia Look for any scars Hydrocele or lipoma of the cord . Previous hernia operations Femoral canal Femoral hernia . Appendicectomy: ? risk factor for direct hernia Testes Undescended testis
4 distinguishing features of an inguinal hernia Palpation Above and medial to pubic tubercle Check if pt. in any pain. Cough impulse Palpate from the side of the pt. Reducible Palpate mass for cough impulse Bowel sounds Define anatomy: relation to pubic tubercle? . Above (and medial): inguinal hernia Hx . Below (and lateral): femoral hernia Predisposing factors: cough, straining, lifting Does mass extend into scrotum? . Inguinoscrotal hernia are more likely to be indirect Pain Auscultate for bowel sounds Reducible . Hernia may lack bowel sounds if it just contains fat. Episodes of obstruction or strangulation Previous repairs
Repeat Inspection and Palpation c pt. Supine ¯ Mx Does the mass disappear when lying down? Conservative Manage RFs: e.g. constipation, cough Test for Direct vs. Indirect Hernia Weight loss Ask pt. to reduce hernia Elasticated corset or truss Place 2 fingers over deep ring and ask pt. to cough. . Mid pt. of ing. lig. or 1.5cm above femoral pulse Surgical . Hernia controlled = indirect Open: Lichtenstein Tension Free Mesh . Not controlled = direct Lap: TEP or TAPP mesh Not an accurate test: definitive determination in theatre.
Discussion Wash hands Difference between direct and indirect inguinal hernia Difference between inguinal and femoral hernias Inguinal canal anatomy Complete Examination Contents of the spermatic cord Examine external genitalia: incidental lumps, testes Recovery from inguinal hernia repair Examine contralateral groin Operative techniques Examine abdomen Complications of repair . Evidence of ↑ IAP: masses, ascites . Other hernias: paraumbilical, umbilical
© Alasdair Scott, 2012 106 Inguinal Hernia: Key Facts
Definition Surgery Protrusion of a viscus or part of a viscus into an abnormal Open and lap approaches: lap if bilateral / recurrent position through a defect in its containing cavity. Mention risk of testicular damage when consenting pt.
Anatomy Open Open can be done under LA or GA: day case
RCS recommends the Lichtenstein Tension Free Inguinal Canal Mesh Repair Ant: ext. oblique + int. oblique for lateral 3rd rd . Less recurrence cf. older Shouldice Repair Post: transversalis fascia + conjoint tendon for medial 3 Floor: inguinal ligament NB. In children, simple ligation and division of the patent Roof: arching fibres of transversus and int. oblique processus suffices: no mesh needed.
Femoral Canal Lap Med: lacunar ligament 2 main techniques Lat: femoral vein . Totally ExtraPeritoneal (TEP) Ant: inguinal ligament . Trans-Abdominal Pre-Peritoneal (TAPP) Post: pectineal ligament (of Cooper) Better for bilateral hernia Contents: fat and Cloquet’s Node Complications Contents of Inguinal Canal M: spermatic cord + ilioinguinal N. Early F: round lig., ilioinguinal N., gen branch of genfem N. Urinary retention Haematoma / seroma formation: 10% Contents of Spermatic Cord Infection: 1% 3 layers of fascia Intra-abdominal injury (lap) 3 arteries + 3 veins Late 2 nerves Recurrence: <2% 3 other things Ischaemic orchitis: 0.5% . 2O thrombosis of pampiniform plexus Operative Distinction Chronic groin pain / paraesthesia: 5% Indirect: arise lateral to inf. epigastric vessels Direct: arise medial to inguinal ligament, through Post-Op Recovery Hesselbach’s Triangle . Med: rectus abdominis muscle Pee before leaving . Lat: inf. epigastric artery Early mobilisation is important . Inf: inguinal ligament Can be painful: given good analgesia Avoid constipation: lactulose Keep the area clean and dry: wash carefully Classification of Inguinal Hernias Can bathe immediately Work in 1-2wks (6wks if heavy lifting) Indirect: 80% Commoner in young Congenital patent processus vaginalis Femoral Hernia Emerge through deep ring Commoner in females (wider femoral canal) Same 3 coverings as cord and descend into the scrotum Middle aged and elderly Can strangulate Neck is inferior and lateral to pubic tubercle High risk of obstruction and strangulation Direct: 20% Commoner in elderly Mx Acquired: weak posterior wall of canal 50% risk of strangulation w/i 1mo Emerge through Hesselbach’s triangle Urgent surgery Can acquire internal and external spermatic fascia Rarely descend into scrotum Elective: Lockwood Low Approach Rarely strangulate Low incision over hernia ¯c herniotomy and herniorrhaphy (suture ing. ligt. to pectineal ligt.) Clinical Distinction Cameron, BJS 1994 Emergency: McEvedy High Approach 56% of direct hernias were wrongly classified as indirect on High approach in inguinal region to allow inspection examination by consultant surgeons. and resection of non-viable bowel. Then herniotomy and herniorrhaphy
© Alasdair Scott, 2012 107 Incisional Hernia
Examination Viva
Inspection Hx Pt. may be overweight Previous surgery Describe scars + drain sites Post-operative wound infection or other complications Any evidence of inflammation (e.g. from strangulation) Co-morbidities → ↑ risk: e.g. chronic cough Ask pt. to lift head off bed Discomfort or episodes of obstruction Ask pt. to cough
Palpation Definition Any tenderness? Extrusion of peritoneum and abdominal contents through Feel for presence of defect a previously acquired defect. Ask pt. to cough while feeling for an impulse Is the defect present along the whole length of the scar? . Size of defect relates to risk of strangulation Complications If a lump is present, can it be reduced? Intestinal obstruction: often intermittent Become irreducible Auscultate Strangulation For bowel sounds Pain or discomfort
Risk Factors
Pre-operative ↑ age Comorbidities: DM, renal failure Drugs: steroids, chemo, radio Obesity or malnutrition Malignancy
Intra-operative Surgical technique/skill (major factor) Too small suture bites Inappropriate suture material Incision type (e.g. midline) Placing drains through wounds
Post-operative ↑ IAP: chronic cough, straining, post-op ileus Infection Haematoma
Mx Surgery is not appropriate for all patients. Must balance risk of operation and recurrence ¯c risk of obstruction / strangulation and pt. choice. Usually broad-necked low risk of strangulation
Conservative Manage RFs: e.g. constipation, cough Weight loss Elasticated corset or truss
Surgical Pre-Op Optimise cardiorespiratory function Encourage wt. loss Nylon mesh repair: open or lap
© Alasdair Scott, 2012 108 Umbilical and Paraumbilical Hernia
Examination Viva
Inspection Hx Pt. may be overweight Predisposing factors: pregnancy, ascites, obesity Ask pt. to lift head off bed and to cough Pain Note any associated skin damage: e.g. ulceration Reducible Note any overlying scars: may indicate recurrence Episodes of obstruction or strangulation Previous repairs Palpation Any tenderness? Feel for presence of defect Paraumbilical Try to asses size Ask pt. to cough while feeling for an impulse Pathogenesis If a lump is present, ask pt. to reduce it. Acquired defect in the linea alba just above or below the umbilicus Commoner in obese, middle-aged pts. Neck is commonly narrow Prone to becoming irreducible or strangulated Typically contain omentum ± large or small bowel May be large → necrosis of the skin
Risk Factors Obesity Pregnancy Ascites Fibroids Bowel distension
Mx Surgery advised due to high risk of strangulation Rx concurrent medical problems Mayo Repair . Mobilise sac and reduce contents . Double-breast the linea alba ± sublay mesh
Umbilical
Pathogenesis Congenital defect in the umbilical scar (cicatrix) Typically congenital: 3% of live births
Risk Factors Afro-Caribbean Trisomy 21 Congenital hypothyroidism
Can recur in adults: pregnancy, ascites
Mx Usually asymptomatic and resolve by 2-3yrs Surgical repair advocated if no resolution by 3yrs
Other Congenital Defects
Gastroschisis Protrusion of abdo contents through defect in abdo wall to the right of the umbilicus. Not usually assoc. ¯c other abnormalities Promt surgical repair after fluid resuscitation
Exomphalos Protrusion of abdominal contents w/i in a 3-layered sac Commonly assoc. ¯c other defects: cardiac, anencephaly © Alasdair Scott, 2012 109 Epigastric Hernia
Examination Viva
Inspection Hx Midline lump above the umbilicus when the pt. coughs or Predisposing factors: pregnancy, obesity lifts head from bed. Symptoms Typically small: “pea shaped” Reducible Associated scars? Episodes of obstruction or strangulation . Incisional hernia or previous repairs Previous repairs
Palpation Any pain? Features Feel for cough impulse Abnormal protrusion of abdominal contents through a Establish size of the defect defect in the linea alba between the xiphisternum and umbilicus. Differential Usually contain extraperitoneal fat or omentum Incisional hernia: ?scar Commoner in young (20-50yrs) Divarication of the recti . Widening of gap between recti muscles . Not a hernia Symptoms May be asymptomatic May be confused for upper GI pathology Pain: may ↑ after meals or exercise Nausea and early satiety Abdominal bloating
Mx
Conservative Manage RFs: e.g. constipation, cough Weight loss
Surgical Reduce hernial contents and excise sac Suture or mesh repair
© Alasdair Scott, 2012 110 Examination of a Scrotal Lump
Set Up Best to examine pt. standing: won’t miss a varicocele
Inspection Skin: scars, erythema, blue tinge, ulcers Groin lumps or scars Ask pt. to cough
Palpation: 4 Key Questions
1. Can you get above it? Can’t get above an inguinoscrotal hernia
2. Is it tender? Torted testis or hydatid of Morgagni Epididymo-orchitis Strangulated hernia
3. Is testis palpable separately? No . Tumour . Orchitis . Hydrocele Yes . Varicocele . Spermatocele / epididymal cyst
4. Does it transilluminate? No . Tumour . Testis . Varicocele Yes . Hydrocele . Spermatocele
Diagnostic Pathway
Can you get above it?
No Yes
Inguinoscrotal Hernia Is it separately palpable?
No Yes
Does it transilluminate? Does it transilluminate?
No Yes No Yes
Tumour Hydrocele Varicocele Epididymal cyst Orchitis Spermatocele Haematocele Sperm granuloma Epididymitis
© Alasdair Scott, 2012 111 Hydrocele
Examination Viva
Inspection Hx Swollen scrotum Duration Pain, discomfort or other symptoms Palpation Previous testicular masses or infections Can get above it. Recent trauma Cannot feel testis separately Treatment so far Firm / tense Co-morbidities: e.g. heart failure Transilluminates Definition Accumulation of fluid w/i the tunica vaginalis Remnant of the processus vaginalis that accompanied the testicle during its descent. Forms one of the adult coverings of the testis
Anatomical Classification
Vaginal Accumulation in the tunica vaginalis that doesn’t extend up the cord
Congenital Proximal part of processus has not obliterated and the sac communicates directly ¯c the peritoneum.
Infantile Processus is obliterated at the deep ring but still extends up the cord
Hydrocele of the Cord Fluid accumulates around the ductus deferens. Can be hard to distinguish from an inguinal hernia as it may extend proximal to the superficial ring. Testicular traction will pull it inferiorly (cf. inguinal hernia)
Aetiological Classification
Primary Caused by a patent processus vaginalis Commonest type Young men, large, tense
Secondary Vaginal type can be caused by a variety of pathologies . Testicular tumours . Epididymo-orchitis . Trauma . Torsion
Ix US to exclude malignancy
Mx
Non-Surgical Watch-and-wait (ensure no Ca) Aspiration: symptom relief only as will accumulate
Surgical Lord’s Repair: plication of the tunica vaginalis Jaboulay’s Repair: eversion of the sac
© Alasdair Scott, 2012 112 Epididymal Cyst Varicocele
Examination Examination
Inspection Inspection Normal appearing scrotum Normal appearing scrotum
Palpation Palpation Can get above it Pt. must be standing Separate from testis: typically above and behind Can get above mass Firm Separate from testis Transilluminates Feels like a bag of worms . Unless it’s a spermatocele Doesn’t transilluminate May have palpable cough impulse Often disappear on lying supine Viva Viva Hx Duration Hx Pain, discomfort or other symptoms Duration Treatment so far Pain, discomfort or other symptoms Treatment so far
Features Pathophysiology Retention cyst of a tubule of the rete testis or the Dilated veins of the pampiniform plexus epididymis. 98% left sided, 50% bilateral Often multiple 1O: occur in up to 15% of young men May contain sperm: spermatocele . Often around puberty Generally asymptomatic . Anatomical cause: ? nutcracker syndrome 2O: varicoceles suddenly appearing in older men can be sinister Mx . Retroperitoneal disease affecting the testicular V. . E.g. renal cell carcinoma extending into L renal V. Non-surgical . Don’t disappear when pt. lies supine If the cyst isn’t troublesome it shouldn’t be removed There is a risk of operative damage and post-op Symptoms fibrosis → subfertility Dragging sensation, exacerbated by exertion Subfertility: commonest surgically correctable cause Surgical Very large or painful cysts can be removed 98% Occur on the Left Excision of the entire epididymis may be indicated to Left testicular vein is more vertical where it joins the left prevent the recurrence of painful cysts. renal vein, cf. to the obliquity of the right testicular V. where it joins the IVC. Left renal vein can be compressed by the colon Left testicular vein is longer than the right
Left testicular vein often lacks a terminal valve to prevent backflow.
Mx
Non-surgical Scrotal support Transfemoral radiological embolisation of the testicular vein
Surgical Often advised as the problem usually gets worse ¯c age and can → subfertility Palomo operation . High approach ¯c transverse incision slightly above and medial to ASIS . Vein exposed and ligated. . Inguinal approach: ligation of veins in the inguinal canal Laparoscopic approach also possible © Alasdair Scott, 2012 113 Testicular Tumour
Examination Viva
Inspection Hx Enlarged testis may be visible Pain, discomfort SOB: lung mets Palpation Back pain: para-aortic node involvement Can get above mass Haematospermia Inseparable from testis Hydrocele Hard, irregular, nodular Previous history: tumour, infection
Non-tender
Doesn’t transilluminate Presentation Completion Commonest malignancy in men 15-45yrs Painless lump or dull ache in one testis in young man Examine contralateral scrotum Occasionally a Hx of trauma accompanying discovery of mass. Abdo exam: hepatomegaly 10% present c acutely painful testis Chest exam: thoracic mets ¯ Haematospermia Examine for abdominal lymphadenopathy O 2 hydrocele Differential Testicular tumour Classification Chronic infection → scarring: orchitis, TB 95% are germ cell tumours Chronic, calcified hydrocele Only 50% are pure cell populations . Pure seminomatous: 50% . Non-seminomatous: teratoma is commonest Other types include . Yolk sac: commonest testicular tumour in children . Choriocarcinoma . Leydig or Sertoli Cell May secrete oestrogens → gynaecomastia . Lymphoma: NHL is commonest testicular mass >60yrs
Seminoma: 40% Teratoma Present 30-40yrs 20-30yrs Markers Usually normal ↑AFP + ↑βhCG in 90% Early DXT to para-aortic LNs Observation or 1-2 cycles ± single dose of cisplatin of chemo Late DXT + combi chemo: BEP Combination chemo: BEP
Ix Tumour markers: AFP, βhCG, placental ALP CXR: mets US scrotum: diagnostic CT abdomen: staging
Mx All testicular tumours are treated ¯c orchidectomy Groin incision ¯c early clamping of spermatic cord to prevent seeding
Seminoma Early: DXT to para-aortic nodes Late: DXT + combination chemo
Teratoma Early: observation Late: combination chemo (Bleomycin, Etoposide, cisPlatin)
© Alasdair Scott, 2012 114 Stomas
Examination Viva
Inspection Definition Site Artificial union between conduits or between a conduit Contents of bag and the outside. . Solid stool . Semi-formed or liquid stool Hx . Urine Surgery Appearance Output . Spout Pain . Lumens Complications . Rod Psychosexual function . Mucosal health Scars . No scars suggests colonoscopy assisted Indications trephine colostomy Exteriorisation . Perforated or contaminated bowel: e.g. Hartmann’s Palpate . Permanent: e.g. AP resection Palpate for parastomal hernia Diversion . Protection of distal anastomosis Complete Examination Contamination: e.g. faecal peritonitis Remove bag to closely inspect and digitate stoma Anatomical: e.g. ileorectal anastomosis . No. of lumens . Acute Crohn’s . Health of mucosa and surrounding skin . Urinary diversion following cystectomy . Strictures Decompression: bypass of distal obstructing lesion . Prolapse Feeding: gastrostomy / jejunostomy Examine the perineum Lavage: e.g. appendicostomy
Quick Distinction
Ileostomy Colostomy RIF LIF Spout Flush Watery contents Formed faeces Perm: Proctocolectomy Perm: AP resection Temp: Anterior resection Temp: Hartmann’s
Discussion Pt. preparation Complications Rehabilitation Classification
© Alasdair Scott, 2012 115 Stomas: Key Facts Ileostomy Located in RIF Small bowel content is an irritant ileostomies are spouted
Type Features Surgery Indication End Ileostomy Permanent: Panproctocolectomy (no anus) Proctocolectomy UC Temporary: Total colectomy Total colectomy ¯c later IPAA FAP Loop Ileostomy Temporary stoma to defunction distal bowel Anterior resection Colon Ca May be supported by bridge or rod Bowel rest Crohn’s
Colostomy Located in LIF or RUQ (transverse loop colostomy) Flush with skin surface
Type Features Surgery Indication End Colostomy Permanent: AP resection (no anus) AP resection Colon Ca Temporary: Hartmann’s Hartmann’s Diverticulits Loop Colostomy RUQ: Anterior resection Colon Ca Defunctioning transverse colostomy to cover a distal Decompression anastomosis: rarely performed LIF: Apex of sigmoid exteriorised w/o a resection for inoperable Ca rectum which is likely to obstruct.
Patient Preparation Patient Rehabilitation Explanation of the indications and complications Aim for a normal diet Liaison ¯c Stoma Nurse to arrange siting Good skin care and cleanliness Psychosexual support Siting Done ¯c pt. standing up to ensure pt. can see stoma. Avoid Classification . Bony prominences Anatomical classification according to location . Skin folds/creases . Tracheostomy . Waistline . Gastroscopy . Old wounds . Jejunostomy . Umbilicus . Ileostomy Choose . Caecostomy . A site that is accessible to the pt. . Colostomy . Ideally below the belt line for concealment . Urostomy . w/i the rectus: ↓ risk of hernia or prolapse
Complications Urostomy Early Fashioned following total cystectomy Haemorrhage Ischaemia Ileal Conduit: Incontinent High output (can → ↓K+) Ureters attached to a portion of resected ileum which is . Loperamide ± codeine to thicken output exteriorised as a spouted stoma. Parastomal abscess Bowel continuity maintained by primary anastomosis. Stoma retraction Urine collected in a bag.
Delayed Indiana Pouch: Continent Parastomal hernia (on lateral side) Pouch created from ~2ft of resected ascending colon and Obstruction: adhesions or herniation through lateral portion of ileum which includes the ileocaecal valve. space around stoma Ureters anastomosed to colonic end and ileal end Dermatitis (esp. ileostomy) exteriorised as spouted stoma. Stoma prolapse Ileocaecal valve prevents urinary leak from the pouch. Stenosis or stricture Pt. self-catheterises to drain pouch. Fistulae
Psychosexual dysfunction
© Alasdair Scott, 2012 116 Surgical Scars
Examination Look For Give correct technical name where possible Stoma and drain scars: bowel surgery Otherwise describe anatomical location and orientation Vasc. access scars: AAA, graft Comment on whether it looks well healed or recently formed Ask pt. to lift head off bed and cough: incisional hernia Don’t guess the operation unless asked to by the examiner.
Name Appearance Use Features Midline Laparotomy Emergency Good access - Skin - Perforated DU Bloodless line - Camper’s fascia - Trauma Minimal nerve and muscle injury - Scarpa’s fascia - Ruptured AAA - Linea alba - Hartmann’s Long midline scar - Transversalis fascia ↑ pain - Pre-peritoneal fat Elective - Peritoneum - Colectomy Closure: PDS, blunt J shaped suture, en mass - AAA Jenkin’s Rule - Vascular bypass - Length of suture = 4x length of incision - 1cm bite, 1cm apart Right Paramedian Not commonly used ~3cm lateral to the midline now as closure techniques have Rectus sheath opened and rectus displaced improved laterally. - Rectus slips back to cover the defect
Time consuming
Kocher’s (Subcostal) Open cholecystectomy
L Kocher’s used for splenectomy
Rooftop Hepatobiliary Surgery Longer to close than a midline as the incision is - liver Tx closed in 3 layers. - Whipple’s - liver resection May be modified to a Mercedes Benz incision Gastric surgery
Pfannenstiel Gynae surgery Lower Urinary Tract
McBurney’s: Oblique Appendicectomy Lanz incision favoured: hidden in skin crease Lanz: Transverse Both follow Langer’s Lines
Muscle splitting Risk of injury to ilioinguinal and iliohypogastric
- Skin nerves may predispose to inguinal hernia - Camper’s fascia - Scarpa’s fascia - External oblique - Internal oblique - Transversus - Transversalis fascia - Pre-peritoneal fat - Peritoneum © Alasdair Scott, 2012 117
Name Appearance Use Features Thoracoabdominal Oesophagogastrectomy
Transverse Muscle Right Hemicolectomy Limited access cf. midline incision Splitting ↓ damage to rectus - segmental nerve supply means the muscle can be cut transversely w/o weakening
Inguinal Hernia Open Inguinal Hernia Incision over the inguinal ligament Incision Repair Follow’s Langer’s Lines
Orchidectomy High rates of chronic neuropathic pain
McEvedy Emergency Femoral Allows inspection of peritoneal cavity ¯c easy - Modified Hernia conversion to laparotomy if necessary
“Half” a Pfannenstiel
Loin Nephrectomy
Vascular Access Bypass Embolectomy EVAR / TEVAR Stent Insertion Femoral Endarterectomy Angioplasty
© Alasdair Scott, 2012 118 Colonic Resections
Right Hemicolectomy Features
Indication: tumours in the cecum and proximal ascending colon
Scars Midline laparotomy Transverse muscle splitting Laparoscopic ports
Stoma: none
Anastomosis: ileocolic
Differential: midline laparotomy differential
Extended Right Hemicolectomy Features
Indication: tumours in the distal ascending colon or transverse colon
Scars Midline laparotomy Laparoscopic ports
Stoma: none
Anastomosis: ileocolic
Differential: midline laparotomy differential
Left Hemicolectomy Features
Indication: tumours in the descending colon
Scars Midline laparotomy Laparoscopic ports
Stoma: none
Anastomosis: colocolic
Differential: midline laparotomy differential
Hartmann’s Procedure Features
Indication: obstruction or perforation 2O to sigmoid tumour or diverticulitis
Description Emergency procedure Sigmoid colectomy Proximal bowel exteriorised as an end colostomy Distal bowel oversewn to form a rectal stump May be reversed after 3-6mo (>50% of pts. aren’t reversed)
Scars Midline laparotomy May have previous stoma scar in LIF if it has been revered
Stoma: single lumen colostomy in the LIF
Differential: APR
© Alasdair Scott, 2012 119
Abdomino-Perineal Resection Features
Indication: rectal Ca < 4-5cm from anal verge
Description Sigmoid, rectum and mesorectal nodes removed via abdominal incision Anus removed via perineal incision
Scars Midline laparotomy No anus
Stoma: single lumen colostomy in the LIF
Differential Hartmann’s Procedure
Anterior Resection Features
Indication: rectal Ca >4-5cm from anal verge
Description Excision of part of the rectum and sigmoid colon May be high or low depending on site of tumour + Total mesorectal excision for tumours in the middle or lower 1/3 Rectal blood supply is poor colorectal anastomosis covered by temporary loop ileostomy.
Scars Midline laparotomy Laparoscopic port scars Scar or stoma in RIF
Stoma: double lumen loop ileostomy in RIF
Differential End Ileostomy . Panproctocolectomy: UC, FAP . Subtotal colectomy: acute severe UC . Cystectomy and ileal conduit Loop Ileostomy . Temporary diversion: Crohn’s
© Alasdair Scott, 2012 120
Subtotal Colectomy Features
Indication: acute severe UC
Description All colon excised except distal sigmoid and rectum. Temporary end ileostomy Rectosigmoid stump may be exteriorised as mucus fistula Followed after ~3mo by either: . Completion proctectomy + IPAA or permanent end ileostomy . Ileorectal anastomosis (IRA)
Scars Midline laparotomy Laparoscopic port sites
Stoma: single lumen end ileostomy in RIF
Differential End Ileostomy . Panproctocolectomy: UC, FAP . Cystectomy and ileal conduit Loop Ileostomy . Temporary diversion: anterior resection or Crohn’s
Panproctocolectomy Features
Indication: UC or FAP
Description All colon, rectum and anus removed Permanent end ileostomy
Scars Midline laparotomy Laparoscopic port sites
Stoma: single lumen end ileostomy in RIF
Differential End Ileostomy . Subtotal colectomy: acute severe UC . Cystectomy and ileal conduit Loop Ileostomy . Temporary diversion: anterior resection or Crohn’s
© Alasdair Scott, 2012 121 Inflammatory Bowel Disease
Examination Viva
Inspection Hx Symptoms Peripheral . Wt. loss, fever, malaise General . Abdominal pain . Malnutrition or wt. loss . Diarrhoea, blood and/or mucus PR . Cushingoid, evidence of steroids Peri-anal disease: abscesses, fistulae Hands Extra-intestinal: EN, arthritis, iritis, gallstones, PSC . Clubbing Therapy . Leukonychia . Admissions . Beau’s lines . Medical therapy Eyes . Operations . Pale conjunctivae . Iritis, episcleritis Ix Mouth . Aphthous ulcers Bloods . Gingival hypertrophy FBC: ↓Hb, ↑WCC Legs U+E: dehydration, ↓K . Erythema nodosum LFTs: ↓ albumin, deranged LFTs . Pyoderma gangrenosum Clotting: ↑INR ↑ ESR, ↑ CRP: used to monitor activity Abdominal Scars Stool . May be multiple and atypical in Crohn’s Culture + CDT: exclude infective causes . Healed stoma sites . Campy, Yersinia, Shigella, C. diff, TB . Healed drain sites
Stomas or healed stoma sites Imaging Enterocutaneous fistulae AXR . Toxic megacolon in UC Palpation . Bowel obstruction 2O to strictures in Crohn’s Tenderness Contrast studies RIF mass . Ba or Gastrograffin enema in UC ± hepatomegaly . Small bowel follow–through in Crohn’s MRI: perianal disease in Crohn’s Completion Inspect perineum for perianal disease Endoscopy Examine for extra-intestinal features Ileocolonoscopy + regional biopsy . Large joint monoarthritis . Ix of choice . Sacroileitis . Safe in acute disease . Bronchiectasis . Distinguish UC from Crohn’s . Assess disease severity Wireless capsule endoscopy
Discussion Clinicopathological distinction between UC and CD Main complications of IBD Extra-intestinal manifestations Definition of severe exacerbation Indications for surgery in UC and CD Surgical options for UC and CD
© Alasdair Scott, 2012 122 IBD: Key Facts for Surgery
Pathology Complications
UC Crohn’s UC Crohn’s
Macroscopic Toxic megacolon Fistulae Location Rectum + colon Mouth to anus - esp. perianal ± backwash ileitis esp. terminal ileum Haemorrhage Perianal abscess Distribution Contiguous Skip lesions Malignancy Strictures Strictures No Yes - CRC Malabsorption - Cholangiocarcinoma Microscopic VTE Toxic dilatation Inflammation Mucosal Transmural Ulceration Shallow, broad Deep, thin, serpiginous Hepatobiliary → cobblestone mucosa Fatty liver Fibrosis None Marked Chronic hepatitis → cirrhosis Granulomas None Present Gallstones Pseudoplyps Marked Minimal PSC (3% of UC) and cholangiocarcinoma Fistulae No Yes
Definition of Severe Exacerbation Surgical Options for UC
Truelove and Witts Criteria Principles Symptoms Curative intent . BMs >6 x /d IPAA or IRA offer continence but suffer from ↑ BMs, pouchitis . Large PR bleed and risk of malignancy. Systemic Signs . ↑ HR >90 Subtotal colectomy ¯c end ileostomy ± mucus fistula . Pyrexia >37.8 Operation of choice for acute severe colitis Laboratory Values . ↓ Hb <10.5g/dL All colon excised except distal sigmoid and rectum. . ESR >30mm/Hr Rectosigmoid stump may be exteriorised as mucus fistula Followed after ~3mo by either: . Completion proctectomy + IPAA or end ileostomy . Ileorectal anastomosis (IRA) Indications for Surgery
Proctocolectomy and permanent ileostomy UC Rectum and anus excised c all of colon ¯ Acute Severe Only performed for pt. choice or when pt. is not suitable for Megacolon: ≥6cm on AXR restorative procedure . ↑ age Perforation: 30-40% mortality . Impaired sphincter function Severe GI bleeding
Chronic Restorative Proctocolectomy Medical Mx failure Proctocolectomy or completion proctectomy Malignancy Construction of ileal reservoir which is anastomosed to anus Maturation failure in children . Ileal pouch anal anastomosis (IPAA) Usually covered by a diverting loop ileostomy May check pouch anastomosis ¯c water soluble contrast
Crohn’s
Acute Severe Surgical Options for Crohn’s Obstruction 2O to stenosis Perforation Principles Severe GI bleeding 80% need ≥1 operation in their life Never curative Chronic Must be as conservative as possible: avoid short gut syndrome Peri-anal disease: fistulae and abscesses Intra-abdominal abscesses Procedures Medical Mx failure: temporary defunction Ileocaecectomy Entero-cutaneous fistulae Drainage of intra-abdominal abscesses Stricturoplasty Colonic defunctioning for failed medical therapy Occasionally a subtotal colectomy + permanent end ileostomy may be needed. © Alasdair Scott, 2012 123 Surgical Jaundice
Examination Viva
Inspection Hx
Peripheral Post-hepatic: most likely in surgery exam Cachexia Dark urine, pale stools Signs of chronic liver disease Itching Look in sclera and at frenulum (of tongue): jaundice Stones: RUQ pain or biliary colic Palpate for Virchow’s node Malignancy . Wt. ↓ and ↓ appetite Abdominal . Change in bowel habit: esp. steatorrhoea Ascites . Back pain Dilated abdominal veins Hepatic Umbilical / para-umbilical hernia EtOH intake Foreign travel: Hep A Blood transfusions, IVDU, Sex: Hep B and C Palpation Sore throat: EBV Hepatomegaly Drug Hx: OCP, Abx, neuroleptics, OTCs Splenomegaly Palpable gallbladder Pre-hepatic Anaemia: tired, SOB, palpitations, ankle swelling FH Completion Check temp: obstruction complicated by infection Definition Dipstick urine: bilirubin, urobilinogen, Hb Yellow discoloration of the skin and mucus membranes caused by the accumulation of bile pigments. Commonest Differentials Normal BR = 3-17uM Visible jaundice = 50uM (3 x ULN) Pre-hepatic Hepatic Post-hepatic Very high levels usually have a hepatic cause Unconjugated Un- / Conjugated Conjugated Haemolysis Hepatitis Gallstones Ix of Post-Hepatic Jaundice - SCD - EtOH - HS - Viral Ca Head Panc Urine - AIHA Decompensated CLD ↑↑BR, no urobilinogen Drugs LNs @ porta hepatis - Paracetamol - Ca Bloods - Statins - TB LFTs: ↑cBR ↑↑↑ALP, ↑AST/ALT, ↑GGT - Anti-TB Clotting: ↑ INR Auto-Abs: AMA, pANCA, ANA
Imaging US . Underlying hepatic disease . Dilated ducts: >6mm . Gallstones . Pancreatic mass or lymphadenopathy MRCP ERCP CT: staging tumour
Causes of Post-Op Jaundice
Pre-hepatic: haemolysis after a transfusion
Hepatic Halogenated anaesthetics Sepsis Intra- / post-operative hypotension
Post-hepatic Biliary injury: e.g. in Lap Chole
© Alasdair Scott, 2012 124 Right Iliac Fossa Mass
Examination Viva
Inspection Hx Duration of mass and how it has changed Peripheral Abdominal symptoms Hands and Arms Gynae symptoms . Clubbing Systemic symptoms . AV fistula Co-morbidities and previous operations Eyes . Pallor . Jaundice Differential of RIF Mass Neck LNs: e.g. Virchow’s node Commonest Transplanted kidney Abdominal Caecal Ca Asymmetry Crohn’s or Appendix mass or abscess Scars: esp. Rutherford Morrison Incisional hernia (mass ¯c scar)
Skin and Soft Tissues Palpation Sebaceous cyst Differentiate mass before continuing ¯c rest of exam Lipoma Site, size, shape Sarcoma Consistency: firm, soft Edge: well or poorly defined Gynaecological Surface: smooth, irregular, nodular Ovarian tumour Relations Fibroid uterus Can you get above and below it? Does it move ¯c respiration? Male Reproductive System Attachment to skin Undescended or ectopic testis ± tumour
Attachment to abdominal muscles Urological System Ask pt. to lift head while palpating Ectopic kidney Cough impulse Bladder diverticulum Inguinal nodes
Blood Vessels
External iliac or common iliac artery aneurysm Percussion LNs Resonant: e.g. bowel or retroperitoneal Dull Radiological Ix
Auscultation US Bruits 1st line Bowel sounds Distinguish bowel mass from pelvic mass ID any LNs and abnormal blood vessels
CT Best to view abdominal wall masses Good to assess extent of intra-abdominal malignancy
MRI Good for pelvic masses
Other Ix Bloods FBC, U+E, LFT Mantoux CXR, AXR US / CT guided biopsy
© Alasdair Scott, 2012 125 Abdominal Masses
Epigastric
Abdominal Wall and Soft Tissue
Sebaceous cyst
Lipoma Epigastric hernia Sarcoma RUQ LUQ GIT Abdominal Wall and Soft Tissue Gastric Ca Abdominal Wall and Soft Tissue Sebaceous cyst Hepatomegaly Sebaceous cyst Lipoma Ca pancreas Lipoma Sarcoma Pancreatic pseudocyst Sarcoma
Intra-abdominal Vascular Intra-abdominal Hepatomegaly AAA Splenomegaly Hepatic mass: cyst, abscess, Left kidney hepatoma Gastric Ca Gallbladder Right kidney
RIF LIF
Commonest Commonest Transplanted kidney Faecal mass Caecal Ca Colon Ca Crohn’s or Appendix mass or Diverticular Mass abscess Transplanted Kidney Incisional hernia (mass ¯c scar) Abdominal Wall and Soft Tissue Abdominal Wall and Soft Tissue Sebaceous cyst Sebaceous cyst Lipoma Lipoma Sarcoma Sarcoma
Gynaecological Gynaecological Ovarian tumour Ovarian tumour Fibroid uterus Fibroid uterus Male Reproductive System Male Reproductive System Undescended or ectopic testis Undescended or ectopic testis ± tumour ± tumour Urological System Urological System Suprapubic Ectopic kidney Ectopic kidney Bladder diverticulum Bladder diverticulum Abdominal Wall and Soft Tissue Sebaceous cyst Blood Vessels Blood Vessels Lipoma External iliac or common iliac External iliac or common iliac artery Sarcoma artery aneurysm aneurysm LNs LNs Urological Bladder Bladder mass Bladder diverticulum
Gynae Gravid uterus Fibroid uterus Ovarian Tumour
© Alasdair Scott, 2012 126 Breast
Contents Breast Examination ...... 128 Breast Lumps ...... 129 Post-Mastectomy Breast ...... 130 Breast Reconstruction ...... 131 Gynaecomastia ...... 132
© Alasdair Scott, 2012 127 Breast Examination
Set Up Request a chaperone Expose pt. from waist up and start ¯c her sitting up Ask pt. if they have noticed lump in breast: which breast?
Inspection
Breast Positions . Hands relaxed by sides . Leaning forwards . Hands behind head . Hands pressing hips Shape: asymmetry, masses Skin . Scars: periareolar, submammary . Radiotherapy tattoos . Eczema, erythema, ulceration . Peau d’orange, dimpling . Accessory nipples: look along the milk line Nipple: inversion, discharge, discolouration, destruction
Peripheral Axillae: LN dissection Arm: lymphoedema Abdomen / Suprapubic: DIEP or TRAM flap harvest Back: lat-dorsi flap harvest
Palpation
Breast Pt. @ 45O with hand behind head, start ¯c normal breast Any pain or discharge? Palpate each breast quadrant, subareolar area and the axillary tail If lump found: SSS CCC TTTT FS Ask pt. to push inwards on her hip to assess tethering
Axillae Right axilla: hold pts. right arm with your right hand (and vice versa) Gently palpate axillary node: . Apical . Anterior . Posterior . Medial . Lateral
Supraclavicular and cervical nodes
Lateral Chest Wall Inflatable port sites for implants
Completion Palpate / percuss spine for tenderness, masses Examine abdomen for hepatomegaly Percuss and auscultate lungs for signs of mets: e.g. effusion
© Alasdair Scott, 2012 128 Breast Lumps
Ix of a Lump: Triple Assessment Classification of Breast Disease
Hx and Examination Malignant Ductal carcinoma NOS: ~70% of cancers Presentation Lobular carcinoma: ~20% of cancers Lump Other: mucinous, medullary, papillary Breast pain Phylloides tumours Skin or nipple changes Mets Benign . Bones: bone pain, #s . Lungs: dyspnoea Congenital . Liver: abdo pain Supernumerary nipples . Brain: headache, seizures Hypoplasia
Risk Factors: BOOBYS Stromal Tumour: fibroadenomas Bleeding: early menarche (<13), late menopause (>55) Oestrogen: OCP, HRT Epithelial Lesions Other breast disease: previous Ca, DCIS, atypia ANDI: fibroadenosis, cysts Breast feeding: protective Papillomas Young ‘un: first child >35yrs (↑ risk) Cystic disease Sister: FH of Ca breast Inflammatory Lesions Mastitis Radiology Abscess <35yrs: US Fat necrosis >35yrs: US + mammography Duct ectasia and periductal mastitis . Oblique and craniocaudal MRI . Multifocal disease Commonest Single Breast Lumps . Cosmetic implants Fibroadenoma Cyst Fat necrosis Pathology Cancer Solid lump: Tru-Cut biopsy Cystic lump: FNAC . Reassure if clear fluid Features of a Malignant Lump . Send cytology if bloody fluid Irregular, nodular surface . Core biopsy residual mass Poorly defined edge . Core biopsy if +ve cytology Hard / scirrhous consistency Painless Other Ix Fixation to skin or chest wall Bloods: FBC, LFTs, ESR, bone profile Nipple involvement Imaging: help staging . CXR . Liver US . CT scan . Breast MRI . Bone scan and PET-CT May need wire-guided excision biopsy
© Alasdair Scott, 2012 129 Post-Mastectomy Breast
Examination Viva
Inspection Hx Note asymmetry What happened? Describe scar . Presentation Look at surrounding skin and axilla . Risk factors Evidence of radiotherapy . Surgery Ask pt. to press her hips: pec major present How are things now? Arm lymphoedema . Post-op pain, anaesthetised skin (@ T1) . Arm swelling . Psych Palpate . Symptoms of mets What will happen in the future? Remaining breast . Chemo and radiotherapy Axilla . Reconstruction Supraclavicular fossa
Indications for Mastectomy
Modern oncological breast surgery involves breast Completion conservation wherever possible. Palpate / percuss spine for tenderness, masses . Typically WLE and SNB Examine abdomen for hepatomegaly Mastectomy may be considered if Percuss and auscultate lungs for signs of mets . Pt. preference . Multifocal disease . Large lump in small breast: e.g. >4cm . Large area DCIS: e.g. >4cm . Nipple involvement
Types of Mastectomy Simple mastectomy . Removal of breast alone: commonest type . Still need to Mx the axilla Other types not performed as no survival benefit . Modified radical: breast, pec minor, axilla . Radical: breast, pec minor and major, axilla . Extended radical: radical + internal mammary LNs
Pt. Preparation
Physical Mark side prior to anaesthetic Explanation including use of suction drain to close cavity and ↓ risk of haematoma or seroma formation. There will be an anaesthetised patch of skin in the upper medial part of the arm Division of intercostobrachial nerve (T1)
Psychological Pts. should see breast care nurse pre-op Options for reconstruction should be discussed
Drain Removal Post-op Typically 2 drains: axilla and site of surgery Left for 3-5d or until draining <50ml/d Pts. can go home ¯c drains and district nurse support.
© Alasdair Scott, 2012 130 Breast Reconstruction
Examination Viva
Inspection Hx As for mastectomy General Note asymmetry Timing Arm lymphoedema Immediate: single operation Evidence of radiotherapy Delayed Evidence of axillary clearance / radiotherapy ↑ pt. decision time Avoidance of detrimental effects of adjuvant therapy Flap Reconstruction Scars extend over back or abdominal wall Techniques Recess on back where lat dorsi has been removed Tissue expansion reconstruction ¯c implants Ask pt. to lift head of bead (when lying supine) to see Autologous tissue reconstruction c myocutaneous flaps recess in the rectus muscle ¯
Implant Reconstruction Implants
Rounder shape than normal breast Advantages Disadvantages Breast usually lies higher Simpler technique Cosmetic result not as good Becker implant may have palpable SC filling port in the Primary or delayed Requires plenty of available skin axilla Lies higher than other breast
Late Complications - Capsular contracture - Implant leakage - Infection requiring removal
Myocutaneous Flaps
Advantages Disadvantages Useful when little remaining ↑ blood loss skin or muscle Good cosmetic result ↑ op time and complications Primary or delayed Use of rectus impossible if pt. has had abdo surgery Late complications - flap necrosis and infection
Types of Myocutaneous Flap
Latissimus Dorsi myocutaneous flap Pedicled: skin, fat, muscle and blood supply LD mobilised and tunnelled medially to form neo-breast Supplied by thoracodorsal A. via subscapular A. Often augmented ¯c an implant
Transverse Rectus Abdominis Myocutaneous (TRAM) Flap Pedicled: inf. epigastric A. Or free: attached to internal thoracic A No implant necessary and combined tummy tuck CI if poor circulation: smokers, obese, PVD, DM Risk of abdominal hernia
Deep Inferior Epigastric Perforator (DIEP) Flap Evolution of the TRAM flap Free: skin and fat only, no muscle Spares the rectus: ↓ pain and ↓ risk of hernia May not be possible if small perforators
© Alasdair Scott, 2012 131 Gynaecomastia
Examination Viva
Inspect Causes of Gynaecomastia: 3Ps Unilateral or bilateral breast swelling Potions Palpation Recreational Must feel glandular tissue to differentiate from pseudo- . Marijuana gynaecomastia (fat). . Diazepam . Anabolic steroids Completion Prescription . Spiro Look for cause . Digoxin . External genitalia . Captopril . Thyroid examination . Verapamil . Evidence of CLD . Ranitidine . Visual fields
Take Hx Physiological Prescription and recreational drugs Especially at puberty where breast tissue may be
unilaterally or bilaterally enlarged. Usually resolves by adulthood
Pathological ↓ androgen production: hypogonadism . Hyperprolactinaemia . Renal failure . Testicular atrophy . Post-orchitis . Bilat torsion . Klinefelter’s: XXY ↑ oestrogens . ↑ production Sex-cord stromal tumours Lung Ca . ↑ peripheral aromatisation Chronic liver disease Thyrotoxicosis
Ix Testicular Ca: AFP, βhCG Hypogonadism: testosterone and LH levels Prolactinoma: PRL level TFTs
Suggestions of Breast Ca 1% of breast Ca occurs in men Older age FH Unilateral gynaecomastia Firm or hard nodules w/i breast tissue Axillary LNs
© Alasdair Scott, 2012 132 Vascular
Contents Venous Examination ...... 134 Varicose Veins ...... 135 Post-Phlebitic Limb: Chronic Venous Insufficiency ...... 136 Arterial Examination ...... 137 Chronic Limb Ischaemia ...... 138 Abdominal Aortic Aneurysm ...... 139 Popliteal Aneurysm ...... 140 Aneurysms: Key Facts ...... 140 False Aneurysm ...... 141 Amputations ...... 141 Carotid Artery Disease ...... 142 Vascular Effects of the Diabetic Foot...... 143 Gangrene ...... 143 Raynaud’s Phenomenon ...... 144 Thoracic Outlet Obstruction ...... 144 Peripheral Ulcer Examination ...... 145 Venous Ulcer ...... 146 Ischaemic Ulcer ...... 146 Neuropathic Ulcer ...... 147 Lymphoedema ...... 148
© Alasdair Scott, 2012 133 Venous Examination
Set-Up Great Saphenous Vein Anatomy Expose pt. from groin to toes Examine ¯c pt. standing
Inspection SFJ - 2 finger breaths below and Skin Changes and Scars lat. to pubic tubercle Scars: esp. in groin creases Chronic Venous Insufficiency: HAS LEGS Mid-thigh perforator of . Haemosiderosis Hunter . Atrophie blanche . Swelling . Lipodermatosclerosis . Eczema . Gaiter ulcers . Stars, venous Calf perforators of Cockett Site and Size of Varicosities - draining into post. ach vein Medial and above knee: great saphenous Posterior and below knee: short saphenous Few varicosities + prominent skin changes: calf perforators Great Saphenous - Passing anterior to medial malleolus Palpation Pitting oedema Palpate varicosities . Tenderness: thrombophlebitis . Induration: thrombosis Saphena varix @ SFJ . Two finger breaths below and lateral to pubic tubercle . Bluish tinge, disappears on lying flat . May have cough impulse (Cruveihier’s Sign) Tap test (Chevrier’s Test) . Tap proximally and feel for impulse distally . Distal pulses: PTA, DPA
Auscultation Bruit over varicosity: AVM
Doppler Place probe @ SFJ/SPJ and squeeze calf Normally hear only half second whoosh when pressure released. Long whoosh suggests valve incompetence.
Completion Trendelenberg or Tourniquet Test Examine abdomen + PR Pelvis in females
Tourniquet / Trendelenberg’s Test Position pt. supine, elevate leg and milk veins. Apply tourniquet as high up thigh as possible or compress SFJ Stand pt. . Controlled: incompetence above tourniquet Release tourniquet to confirm filling . Uncontrolled: incompetence below tourniquet e.g. SPJ or calf perforators Repeat test with tourniquet just below knee
© Alasdair Scott, 2012 134 Varicose Veins
Pathophysiology Definition One-way flow from sup → deep maintained by valves Tortuous, dilated veins of the superficial venous Valve failure → ↑ pressure in sup veins → varicosity system . Fibrous tissue invades tunica intima and media, breaking up the SM CEAP Classification . Prevents maintenance of vascular tone → dilatation Classification of Chronic Venous Disease 3 main sites where valve incompetence occurs Clinical signs (1-6 + sympto or asympto) . SFJ: 3cm below and 3cm lateral to pubic tubercle Etiology . SPJ: popliteal fossa . Perforators: draining GSV Anatomy Chronic venous insufficiency is distinct and results from Pathophysiology incompetency in the deep system itself. . May co-exist ¯c varicose veins Mx
Causes Conservative Lose wt. and regular exercise
Avoid prolonged standing Primary / Idiopathic: 95% Class II graduated Compression Stockings Prolonged standing . 18-24mmHg Pregnancy Skin care: emollients Obesity OCP Minimally Invasive Therapies
Secondary: 5% Indications Valve destruction: DVT, thrombophlebitis Small below knee varicosities not involving GSV or Obstruction: pelvic mass, DVT SSV AVM Syndromes Techniques Local or GA Syndromes Injection sclerotherapy: 1% Na tetradecyl sulphate Endovenous laser or radiofrequency ablation Klippel-Trenaunay-Weber Abnormality of the deep venous system Post-Operatively Varicose veins Compression bandage for 24hrs Port wine stain Compression stockings for 1mo Bony and soft tissue hypertrophy of the limbs Surgery Parkes-Weber Syndrome Multiple AVMs ¯c limb hypertrophy Indications AVMs can → high-output HF SFJ incompetence Major perforator incompetence Symptoms Symptomatic: ulceration, skin changes, pain Cosmetic defect Pain, cramping, heaviness Procedures Trendelenberg: saphenofemoral ligation Tingling SSV ligation: in the popliteal fossa Bleeding: may be severe LSV stripping: no longer performed due to potential Swelling for saphenous nerve damage. Multiple Avulsions Ix Cockett’s Operation: perforator ligation
SEPS: Subfascial Endoscopic Perforator Surgery Duplex US Post-op Indications Bandage tightly and elevate for 24h Previous Hx of DVT D/C ¯c compression stockings and told to walk daily. Signs of chronic venous insufficiency . Suggests deep venous disease for which the Complications varicosity may be the collateral. Early Recurrent varicose veins . Haematoma: esp. groin Difficulty in deciding whether GSV or SSV is incompetent . Wound sepsis . Nerve damage: e.g. long saphenous Preparation for Surgery Late FBC, U+E, clotting, G+S . Superficial thrombophlebitis CXR . DVT ECG . Recurrence: 10% @ 5yrs © Alasdair Scott, 2012 135 Post-Phlebitic Limb: Chronic Venous Insufficiency
Examination Viva
Inspection Hx Previous DVT HAS LEGS . Orthopaedic surgery Haemosiderosis . Complicated obstetric course Atrophie blanche Venous Claudication Swelling . “Bursting” pain in the leg after exercise Lipodermatosclerosis . Relieved by rest and elevation of limb (cf. arterial) Eczema Gaiter ulcers Causes Stars, venous Reflux following DVT: 90% Obstruction following DVT: 10% Varicose Veins Often present as collaterals bypassing the obstruction Venous Gangrene
Rare complication of DVT in the iliofemoral segment 3 phases Palpation . Phlegmasia alba dolens: white leg Pitting oedema . Phlegmasia cerulea dolens: blue leg . Gangrene 2O to acute ischaemia
Completion Lipodermatosclerosis Perthes’ Test Panniculitis Abdominal exam + PR Venous HTN → extravasation of fibrin and red cells Pelvic exam in women Poor tissue oxygenation → ulceration and fat necrosis Inverted champagne bottle appearance Perthes’ Test . Chronic inflam → fibrosis → distal shrinkage Tests for deep venous occlusion . Venous obstruction → proximal leg swelling High tourniquet around pts. leg + walking for 5min Deep obstruction → swelling and pain Ix of Deep Venous Disease Duplex: reflux and occlusion Venography . Ascending: patency and perforator incompetence . Descending: reflux Ambulatory venous pressures
Surgical Options
Reflux Trahere Transplantation . Transplant segment of axillary vein ¯c valve into deep venous system of leg . Wrap ¯c PTFE cuff Kistner Operation . Valvuloplasty of damaged valves
Obstruction Palma operation . Use contralateral GSV and anastomose to femoral vein to bypass iliofemoral obstruction
© Alasdair Scott, 2012 136 Arterial Examination
Lower Limb Upper Limb
Set-Up Inspection Expose pt. from groin to toes Start @ the toes unless told otherwise Hands and Arms Tobacco staining Colour Inspection Trophic changes Colour: pallor or cyanosis Ulcers and gangrene Trophic changes Scars . Muscle atrophy, . Shiny dry skin Face and Neck . Nail dystrophy and loss of hair Corneal arcus, xanthelasma Ulcers High arched palate . Between toes Scar over carotids . Base of 1st and 5th metatarsals . Heel (ask re. pain before lifting…) Chest Gangrene Mid-line sternotomy scar Scars . Medial thigh and leg . Vascular access (vertical groin) Palpation . Midline sternotomy or laparotomy Temperature . Axilla Pulses: rate and rhythm . Radial: lat. to FCR tendon @ wrist . Ulna: lat. to FCU Palpation . Brachial: medial to biceps tendon Temperature: feel ¯c backs of both hands . Carotid: ant. to SCM at the thyroid cartilage Pulses: as present, reduced or absent Radio-radial delay . Feel pulses bilaterally if possible for comparison Radio-femoral delay . Aorta: just above the umbilicus . Stenosis, coarctation, dissection . Femoral: mid-inguinal point . Popliteal: between the heads of gastrocnemius . Dorsalis pedis: lat. to extensor hallux longus Auscultate for Bruits tendon (absent in ~5% of people) Carotids . Post tib: postero-inferior to medial malleolus Graft . Graft + distal pulses: is the graft patent?
Capillary refill: <2s
Completion Auscultate for Bruits Examine the rest of the vascular system Assess the pulses with a hand-held doppler Aorta and renal vessels Cardiovascular and neurological examination Iliac: midway from umbilicus to inguinal ligament BP of both arms Femoral Difference >20mmHg suggests stenosis, CoA or Course of SFA if popliteal can’t be palpated dissection. Grafts
Buerger’s Angle and Test Lift leg to 45O and observe for pallor and venous guttering . <20O = severe ischaemia Buerger’s Test: reactive hyperaemia on lowering the leg . 2O to vasodilatation of the microcirculation in response to ischaemia
Completion Examine the rest of the vascular system Assess the pulses with a hand-held doppler Measure the ABPI Cardiovascular and neurological examination . DM neuropathy . Valve disease
© Alasdair Scott, 2012 137 Chronic Limb Ischaemia
Presentation Ix
Intermittent Claudication Bedside Cramping pain after walking a fixed distance ABPI ± exercise ABPI (↓ by 0.2 in PVD) Pain rapidly relieved by rest ECG Calf pain = superficial femoral disease (commonest) Buttock pain = iliac disease: internal or common Blood FBC: anaemia may worsen symptoms Critical Limb Ischaemia: Fontaine 3 or 4 U+E: renovascular disease Ankle artery pressure <50mmHg (toe <30mmHg) Glucose: DM And either: Lipids: hypercholesterolaemia . Persistent rest pain requiring analgesia for ≥2wks . Ulceration or gangrene Imaging: assess site, extent and distal run-off Rest pain Colour duplex US . Especially @ night CT / MR angiogram: gadolinium contrast . Usually felt in the foot Digital subtraction angiography . Pt. hangs foot out of bed . Invasive not commonly used for Dx only. . Due to ↓ CO and loss of gravity help . Used for therapeutic angioplasty or stenting Tissue loss: ulceration, gangrene
Leriche’s Syndrome: Aortoiliac Occlusive Disease Non-Surgical Mx Atherosclerotic occlusion of abdominal aorta and iliacs Walk through pain: may use exercise programs Triad of: Optimise risk factor profile . Buttock claudication and wasting . Smoking cessation . Erectile dysfunction . Control HTN, lipids and BP . Absent femoral pulses . Lose wt. Antiplatelet and statin for all pts. Foot care Intermittent Claudication vs. Spinal Claudication Prognosis Arterial Spinal ~80% improve or stay the same Path Vascular insufficiency Nerve compression 20% deteriorate, 1% lose their limb Site Usually calf or buttock Ill-defined / whole leg 60% mortality @ 5yrs: cardiovascular disease Pain Set distance: reproducible Positional onset Worse up stairs Better up stairs Interventional Cramping Burning pain Angioplasty ± stenting Eased by standing rest Eased sitting forward Chemical sympathectomy Exam Evidence of PVD Normal Surgical Mx
Endarterectomy Risk Factors Bypass grafting
Amputation Modifiable Non-modifiable
Smoking FHx Bypass Grafting BP PMH
DM control Male Indications Hyperlipidaemia ↑ age V. short claudication distance (e.g. <100m) ↓ exercise Ethnicity Symptoms greatly affecting pts. QoL
Development of rest pain
Classification Pre-op Assessment Need good optimisation as likely to have Clinical Fontaine ABPI cardiorespiratory co-morbidities. Calcification: CRF, DM >1.4 Normal >1 Practicalities Asymptomatic Fontaine 1 0.8-1 Need good proximal supply and distal run-off Claudication Fontaine 2 0.6-0.8 Saphenous vein grafts preferred below the IL Rest pain Fontaine 3 0.3-0.6 More distal grafts have ↑ rates of thrombosis Ulceration and gangrene Fontaine 4 <0.3 Classification Anatomical: fem-pop, fem-distal, aortobifemoral Extra-anatomical: axillo-fem / -bifem, fem-fem crossover
© Alasdair Scott, 2012 138 Abdominal Aortic Aneurysm
Examination Viva
Inspection Hx Midline pulsating mass: esp. on deep inspiration Presentation: usually incidental finding Abdominal scars Symptoms . Abdominal or back pain . Tenderness over aneurysm Palpation Distal embolic events Pulsatile and expasile mass on deep palpation in the Leak epigastrium. Other peripheral or cardio-vascular disease . Expansile: moves fingers laterally ¯c each pulse CV risk factors Estimate size using lateral margins of index fingers Palpate for other aneurysms Definition . Course of common iliacs Abnormal dilatation of the abdominal aorta to >50% of . Femorals its normal diameter = ≥3cm . Popliteals Risk Factors Male Auscultation for Bruits Age >60yrs (prevalence: ~5%) Aortic Smoking Renal HTN Iliac FHx
Ix Completion Abdo US: used for surveillance and screening Cardiovascular system CT/MRI: Ix of choice Peripheral vascular system Angio: useful to delineate relationship of renal arteries
When to Operate Repair aims to avoid complications Operate when risk of complications, esp. rupture, > risk of surgery.
Indications Symptomatic aneurysms Asymptomatic . ≥5.5cm . Expanding >1cm/yr
Complications Death MI Renal failure Spinal or mesenteric ischaemia Distal trash from thromboembolism Anastomotic leak Graft infection Aortoenteric fistula
Operative Mortality Open . Emergency: 50% But only 50% reach hospital alive . Elective: 5% (lower in specialist centres) . ↑ if IHD, LVF, CRF, COPD EVAR: 1%
EVAR ↓ perioperative mortality (1% vs. 5%) No mortality benefit after 5yrs Significant late complications: e.g. endoleaks EVAR not better cf. medical care in unfit pts.
© Alasdair Scott, 2012 139 Popliteal Aneurysm Aneurysms: Key Facts
Examination Definition Abnormal dilatation of a blood vessel > 50% of its Inspection normal diameter. Pulsatile popliteal swelling Ischaemic patches on foot: emboli Classification
Palpation True Aneurysm If asked just to examine the pulses, start ¯c femorals Dilatation of a blood vessel involving all layers of the . Comment on presence and character wall and is >50% of its normal diameter Aneurysmal popliteals are very easily palpable Two different morphologies . Popliteal aneurysm ≥2cm in diameter . Fusiform: e.g AAA 50% bilateral: examine the other knee . Saccular: e.g Berry aneurysm Distal pulses may not be palpable False Aneurysm Completion Collection of blood around a vessel wall that communicates ¯c the vessel lumen. Complete peripheral vascular examination Usually iatrogenic: puncture, cannulation Abdominal examination for AAA
. Present in 50% Dissection
Vessel dilatation caused by blood splaying apart the media to form a channel w/i the vessel wall. Viva Used to be classified as “dissecting aneurysms” but not technically correct as represents a different pathology. Presentation Popliteal aneurysms represent 80% of all non-aortic Causes aneurysms Lump behind the knee Congenital 50% present ¯c distal limb ischaemia: thromboembolism ADPKD → Berry aneurysms <10% rupture Marfan’s, Ehlers Danlos
Mx Acquired Atherosclerosis Surgical Indications Trauma: e.g penetrating trauma Symptomatic aneurysms Inflammatory: Takayasu’s aortitis, HSP Aneurysms containing thrombus Infection Aneurysms >2cm . Mycotic: SBE . Tertiary syphilis (esp. thoracic) Mx . Salmonella typhi: assoc. ¯c AAA
Acute: embolectomy or fem-distal bypass Stable: excision bypass Complications Rupture Thrombosis Distal embolisation Pressure: DVT, oesophagus, nutcracker syndrome Fistula: IVC, intestine
UK Small Aneurysms Trial Powell, Greenhalgh et al., Lancet 1996 Asymptomatic aneurysms between 4-5.5cm should be monitored. Aneurysms ≥ 5.5cm should undergo repair. Risk of rupture . <5.5cm: 1% /yr . ≥5.5cm: 10% /yr
Screening MASS trial revealed 50% ↓ aneurysm-related mortality in males aged 65-74 screened ¯c US. UK men offered one-time US screen @ 65yrs
© Alasdair Scott, 2012 140 False Aneurysm Amputations
Examination Examination
Inspection Inspection Pulsatile mass in the groin Stump anatomical level Surgical scars or puncture sites Stump health Evidence of chronic vascular disease Palpation Pulsatile, expansile swelling Palpation Define the anatomical location Soft tissue under skin should move freely over the bone . Usually mid-inguinal point Proximal pulses Palpate distal pulses Move Auscultate for a Bruit Ask pt. to actively flex and extend the knee joint above the amputation . Many pts. have a fixed flexion deformity after Viva BKA Ask to look @ prosthesis and see pt. walk ¯c it. True vs. False Aneurysm Often useful to draw this Completion Aneurysm is an abnormal dilatation of a blood vessel Examine other limb for signs of PVD
True: involves all layers of arterial wall
False Viva Collection of blood around a vessel wall that communicates ¯c the lumen Indications: 4D’s i.e. a pulsating haematoma Dead: PVD (90%), thrombangiitis obliterans Fibrous tissue forms around haematoma → false sac Dangerous: sepsis, malignancy which communicated ¯c vessel lumen Damaged: trauma, burns, frostbite Damned nuisance: pain, neurological damage Aetiology Occurs after vessel a laceration / puncture Considerations . Traumatic or iatrogenic Psychosocial implications . Usually in the common femoral A. following Future mobility: 200% more effort to walk after AKA puncture for a radiological procedure. OT involvement Level of amputation must be high enough to ensure Mx healing of the stump. Ultrasound compression But ↑ mortality ¯c AKA vs. BKA Thrombin injection Surgical repair Procedures Toe: with the metatarsal head Ray Amputation . Incision on either side of affected digit to the base of the metatarsal . Creates a V shape and narrows foot . Heals by 2O intention . Used if necrosis of digit and muscles of the foot. Forefoot: transmetatarsal Below knee: aids rehabilitation Above knee Hindquarter / hemipelvicotomy
Complications Pts. often have co-morbidities → ↑ risk Esp. CVD
Early Mortality: ~20% for AK Haemorrhage Infection: cellulitis, gangrene, osteomyelitis Scar contractures → fixed flexion Phantom limb pain: try gabapentin Poor stump shape inhibiting prosthesis © Alasdair Scott, 2012 141 Carotid Artery Disease
Examination Viva
Two Possible Options Hx Previous TIA: esp. amaurosis fugax Carotid Endarterectomy Scar . Amaurosis fugax will be ipsilateral to stenosis Beneath the angle of the mandible Previous stroke Parallel to SCM Other CV and PV disease CV risk factors Carotid Bruit Along course of common carotid: medial to SCM in the Ix anterior triangle Best heard in expiration Bedside Urine dip: proteinuria in renovascular disease ECG: ischaemic changes, AF Completion If heard bilaterally, listen over precordium to exclude AS Blood Full peripheral vascular examination FBC: anaemia may worsen symptoms Neurological examination: cerebrovascular event U+E: renovascular disease Glucose: DM Lipids: hypercholesterolaemia
Imaging Carotid Duplex US: site and size of stenosis MRA: more detailed carotid anatomy Echo: CVD CT or MRI brain: infarcts
Complications of Carotid Stenosis
TIA Sudden neurological deficit of vascular origin lasting <24h (usually lasts <1h) ¯c complete recovery Microemboli from the plaque
Stroke Sudden neuro deficit of vascular origin lasting >24h . 3rd leading cause of death in the West Carotid atheroembolism is the commonest cause
Mx Pts ¯c severe symptomatic stenosis should have CE ASAP after the neurological event.
Conservative Aspirin or clopidogrel Control risk factors
Surgical: Endarterectomy Symptomatic (ECST, NASCET) . ≥70% (5% stroke risk per yr) . ≥50% if low risk (<3%, typically <75yrs) . 6 fold reduction in stroke rate @ 3yrs Asymptomatic (ACAS, ACST) . ≥60% benefit if low risk
Complications 3% risk of stroke or death Haematoma MI Nerve injury . Hypoglossal: ipsilateral tongue deviation . Great auricular: numb ear lobe . Recurrent laryngeal: hoarse voice, bovine cough
© Alasdair Scott, 2012 142 Vascular Effects of the Diabetic Foot Gangrene
Examination Examination
Inspection Inspection Bilateral signs of chronic arterial disease Wet Amputations: esp. digits . Putrefaction Charcot joints . Ill-defined, spreading edge Ulceration Dry . Dry and shrunken . Well demarcated Palpation . Features of PVD Pulses may be preserved due to calcification ↓ sensation in stocking distribution Palpation Temperature Distal pulses Completion Examine the peripheral nervous system Urinalysis: proteinuria Viva Fundoscopy: retinopathy Definition Irreversible tissue death from poor vascular supply. Viva Classification Hx Wet: tissue death + infection Control Dry: tissue death only Complications Pregangrene: tissue on the brink of gangrene Claudication Previous operations Causes of Gangrene Other vascular disease DM: commonest Other vascular risk factors Embolism and thrombosis . E.g. foot trash in AAA repair Raynaud’s Diabetic Foot Syndrome Thrombangiitis obliterans Microvascular disease Injury: extreme cold, heat, trauma or pressure
Macrovascular disease . Predominantly below knee cf. non-DM occlusive Mx disease. Take cultures Neuropathy Debridement (including amputation) Infection and osteomyelitis Benzylpenicillin ± clindamycin
Aetiology of Diabetic Ulcers Synergistic Gangrene Neuropathic: 45-60% Involves aerobes + anaerobes Ischaemic: 10% Fournier’s: perineum Mixed neuroischaemic: 25-45% Meleney’s: post-op ulceration Both progress rapidly to necrotizing fasciitis and myositis Preservation of Pulses Calcification in the walls of the vessels: mediasclerosis Preserves the pulses until late Gas Gangrene → abnormally high ABPI Clostridium perfringes myositis . Use toe pressure instead: <30mmHg RFs: DM, trauma, malignancy Similar effect is seen in CRF Presentation Toxaemia Problems ¯c Diabetics Undergoing Angiography Crepitus from surgical emphysema Often have a degree of renal impairment which can be Bubbly brown pus dramatically worsened ¯c contrast agents. Metformin must be stopped prior to the procedure to Rx prevent lactic acidosis Debridement (may need amputation) Benzylpenicillin + metronidazole Hyperbaric O2
© Alasdair Scott, 2012 143 Raynaud’s Phenomenon Thoracic Outlet Obstruction
Examination Examination
Key Questions Inspection What is the main problem you have ¯c your hands? Arm: ↓ venous outflow When do symptoms occur? . Oedema: pitting Is it precipitated by any specific weather conditions? . Cyanosis Can you describe the colour changes your fingers go . Pallor through? Hand: ↓ arterial inflow . Raynaud’s Inspection . Patchy gangrene . Fingertip necrosis Usually bilateral Hand and Arm: neurological complications Dry, red skin . Complete claw hand Brittle nails . T1 sensory loss Ulceration or gangrene on the pulps . Radicular pain
Palpation Palpation Normal radial pulse Palpate for cervical rib above the supraclavicular fossa
Disappearance of radial pulse on abduction and Completion external rotation of arm Ask about symptoms and look for signs of secondary causes of Raynaud’s phenomenon Viva
Viva Differential of Thoracic Outlet Obstruction
Arterial: Raynaud’s Definitions Venous: axillary vein thrombosis or trauma Phenomenon: characteristic cold-induced changes Neurological: cervical spondylosis, Pancoast’s tumour assoc. ¯c vasospasm Disease: primary Raynaud’s phenomenon occurring in Ix isolation X-Ray: cervical rib Syndrome: secondary Raynaud’s phenomenon assoc. Duplex in abduction c other disease ¯ Arteriograms of subclavian artery may show kinking
Nerve conduction studies Colour Changes Cold- or emotion-induced Aetiology White → Blue → Crimson Congenital: cervical rib st Acquired: clavicle #, pathological enlargement of 1 rib Pathogenesis Overactive α sympathetic receptors Or, fixed obstruction in vessel wall
Secondary Causes: BADCAT Blood: polycythaemia, cryoglobulinemia, cold agglutinin Arterial: atherosclerosis, thrombangiitis obliterans Drugs: β-B, OCP, ergotamine Cervical rib: → thoracic outlet obstruction Autoimmune: SLE, RA, SS Trauma: vibration injury
Mx
Conservative Wear gloves and avoid cold Stop smoking
Medical CCBs: e.g. nifedipine IV prostacyclin
Surgical Cervical sympathectomy Amputate gangrenous digits
© Alasdair Scott, 2012 144 Peripheral Ulcer Examination
Inspection: BEDS Ulcer Edges
3s Site Size Shape
Base Granulation tissue Slough Floor: bone, tendon, fascia
Edge Sloping: healing – usually venous Punched-out: ischaemic or neuropathic Undermined: pressure necrosis or TB Rolled: BCC Everted: SCC
Discharge Serous Purulent Sanguinous
Surroundings Cellulitis Excoriations Sensate LNs
Palpation
Limb pulses Sensation around the ulcer
Completion Examine contralateral side Distal neurovascular examination ABPI: must be >0.8 for compression bandaging
Causes Venous: 75% Arterial: 2% Mixed arteriovenous: 15% Neuropathic Pressure Vasculitis: e.g. PAN Malignancy: SCC, Marjolin’s Systemic: pyoderma gangrenosum
© Alasdair Scott, 2012 145 Venous Ulcer Ischaemic Ulcer
Examination Examination
Inspection Inspection Site: medial malleolus Site Size: variable, can be v. large . Tips of and between toes st th Base . Base of 1 and 5 metatarsals . Shallow . Heel . Pink granulation tissue Size: mm-cm Edge: sloping edge Base Discharge: seropurulent . Deep: may be down to bone Surroundings . May be slough but no granulation tissue . Signs of chronic venous insufficiency: HAS LEGS Edge: punched-out . Varicose veins Surroundings . Pale Palpation . Trophic changes Painless Warm surroundings Palpation Sensate Painful Cold surroundings Sensate Reduced or absent distal pulses Viva
Causes Viva Valvular disease
Varicose veins Causes Deep vein reflux: e.g. post DVT
Outflow obstruction Large Vessel . Often post DVT Atherosclerosis Muscle pump failure Thombangiitis obliterans (Buerger’s Disease) Stroke
Neuromuscular disease Small Vessel
DM Ix PAN ABPI if possible RA Duplex ultrasonography Biopsy may be necessary: esp. if persistent ulcer Look for malignant change: Marjolin’s ulcer Mx
Mx Analgesia Refer to leg ulcer community clinic Can be extremely painful Combination of drugs administered regularly General Measures Based on the analgesic ladder: titrate to pain Optimise risk factors: nutrition, smoking . Paracetamol + NSAIDs Analgesia . Weak opioids: e.g. codeine Bed rest + elevate leg . Strong opioids: e.g. morphine
4 layer compression bandaging if ABPI >0.8 Risk Factor Modification Construction Stop smoking . Non-adherent dressing + wool bandage Control DM and HTN . Crepe bandage Optimise lipids . Blue line bandage: light compression . Cohesive compression bandage Medical Change bandages 1-2 x/wk Avoid drugs which may worsen symptoms: e.g. β-B Once healed use grade 2 compression stockings for life Low-dose aspirin IV prostaglandins Other Options Chemical lumbar sympathectomy Pentoxyfylline PO: ↑ microcirculatory blood flow . Chemical ablation of L1-L4 paravertebral ganglia Desloughing ¯c larval therapy . Inhibit sympathetic-mediated vasoconstriction Topical antiseptics: Manuka honey . Relief of pain Surgical: split-thickness skin grafts . Often unsuccessful in DM: neuropathy
© Alasdair Scott, 2012 146 Neuropathic Ulcer
Examination
Inspection Site: pressure areas . Tips of and between toes . Base of 1st and 5th metatarsals . Heel Size: variable Shape: corresponds to shape of pressure point Base: may be deep ¯c bone exposure Edge: punched-out Surroundings . Skin looks normal . Charcot’s joints . May be signs of PVD if co-existent arterial disease
Extras Blood sugar testing marks on fingers Insulin injection marks on the abdomen
Palpation Normal temperature Normal peripheral pulses Absent sensation around ulcer Absent ankle jerks
Completion Full peripheral vascular exam Cranial and peripheral neuro exam
Viva
Causes
Any cause of peripheral neuropathy DM Alcohol B12 CRF Drugs: e.g. isoniazid, vincristine Every vasculitis
Pathophysiology Sensory neuropathy: distal limb damage not felt by pt. Motor neuropathy: wasting of intrinsic foot muscles and an altered foot shape . Claw toes + prominent metatarsal heads Autonomic neuropathy: ↓ sweating → cracked, dry foot
© Alasdair Scott, 2012 147 Lymphoedema
Examination Viva
Inspection Limb Swelling Differential Gross leg swelling Bilateral or unilateral Bilateral Thick, indurated skin ↑ Venous Pressure . RHF Lichenification . Venous insufficiency Yellow nail discoloration . Drugs: e.g. nifedipine
↓ Oncotic Pressure Palpation . Nephrotic syndrome Initially: pitting . Hepatic failure Later: non-pitting . Protein losing enteropathy Palpate for inguinal nodes Lymphoedema Myxoedema Completion . Hyper- / hypo-thyroidism Exclude RHF . ↑ JVP Unilateral . Hepatomegaly Venous insufficiency Take a Hx: esp. re hereditary conditions DVT Infection or inflammation Lymphoedema
Lymphoedema Collection of interstitial fluid due to blockage or absence of lymphatics.
Primary Congenital absence of lymphatics May or may not be familial Presentation . Congenital: evident from birth . Praecox: after birth but <35yrs . Tarda: >35yrs
Milroy’s Syndrome: 2% of primary lymphoedema Familial AD subtype of congenital lymphoedema F>M
Secondary: FIIT Fibrosis: e.g. post-radiotherapy Infiltration . Ca: prostate, lymphoma . Filariasis: Wuchereria bancrofti Infection: TB Trauma: block dissection of lymphatics
Mx Conservative . Skin care . Grade 3 compression stockings . Treat or prevent cellulitis Physio . Raise leg as much as possible Surgical . Debulking operation . Bypass procedures
© Alasdair Scott, 2012 148 Musculoskeletal
Contents Hip Examination ...... 150 Knee Examination ...... 151 Osteoarthritis: Key Facts ...... 152 Hip Arthroplasty ...... 153 Knee Arthroplasty ...... 154 Knee Ligament Damage ...... 154 Hallux Valgus ...... 155 Lesser Toe Deformities ...... 155 Charcot Joints ...... 156 Gait ...... 157 Popliteal Swellings ...... 157 Shoulder Examination ...... 158 Hand Examination ...... 159 Dupuytren’s Contracture ...... 160 Carpal Tunnel Syndrome ...... 161 Rheumatoid Hands ...... 162 OA Hands ...... 163 Ulnar Nerve Palsy ...... 164 Radial Nerve Palsy ...... 164 Mallet Finger ...... 165 Trigger Finger ...... 165 Back Examination ...... 166 Lumbar Disc Herniation ...... 167
© Alasdair Scott, 2012 149 Hip Examination Set-Up Pt. should be in their underwear Note presence of walking aids Start ¯c pt. standing
Look
Gait Antalgic: ↓ stance-phase on affected side Trendelenberg: sideways lurch of trunk to bring body wt. over limb
Examine Pt. Standing Skin . Scars: esp. lateral and posterior . Bruising, erythema Shape +ve Trendelenberg Test . Soft tissue or bony swelling O . Muscle wasting: esp. gluteals Abductor wasting 2 chronic pain Deformity: coxa vara or valga Sup. gluteal N. injury: surgery Structural: DDH Trendelenberg Test Negative: pelvis tilts slightly up on unsupported side. Positive: pelvis drops on the unsupported side . Pathology of contralateral abductor mechanism True Shortening Examine Pt. Supine #: e.g. NOF Square the pelvis and measure leg lengths Hip dislocation . True length: ASIS to medial malleolus Growth disturbance of tibia/fibula . Apparent length: xiphisternum to medial malleolus . Osteomyelitis, #s . Galeazzi Test: tibial vs. femoral shortening. Surgery: e.g. THR SUFE Perthes’ disease Feel Palpate for tenderness: Apparent Shortening ASIS, iliac crests and pubic rami Scoliosis of the spine Greater trochanter
Move Hip pain Abduction: 45 Pain from hip joint usually felt in Adduction: 30 groin or ant. thigh. Flexion: 130 Pain @ back of hip is usually Internal rotation: 20 referred from lumbar spine. External rotation: 45
Fixed Flexion Deformity Thomas’ Test Osteoarthritis Caution if hip arthroplasty on non-test side # NOF . Forced flexion can → dislocation Assesses for fixed flexion deformity . Masked by compensatory movement in pelvis or lumbar spine . Obliterate lumbar lordosis . Angle between thigh and bed = fixed flexion deformity Features in OA of the Hip ± Trendelenberg gait or +ve Test Pain Completion Stiffness ↓ ROM: esp. internal rotation Examine the knee and spine Fixed flexion deformity Perform a neurovascular assessment (esp. pulses). AP and lateral radiographs of the pelvis
© Alasdair Scott, 2012 150 Knee Examination
Set-Up Pt. should be in their underwear Note presence of walking aids Start ¯c pt. standing
Look
Gait Antalgic Stiff: pelvis rises during swing phase Varus thrust: medial collateral Valgus thrust: lateral collateral
Examine Pt. Standing Skin . Scars: arthroscopic ports, KR (midline longitudinal), menisectomy . Bruising, erythema Shape . Swelling: knee and popliteal fossa (Baker’s Cyst) . Muscle wasting: quads, hamstrings Measure quads circumference @ 15cm from tib tuberosity Deformity . Genu vara (bow legged): OA . Genu valga (knock-knee): RA
Examine Pt. Supine
Feel Knee Effusion Temperature Synovial fluid: synovitis Effusion: sweep test and ballot Blood Palpate O . 90% = ACL rupture . Position knees @ 90 . PCL rupture, intra-articular #, meniscal tear . Joint line for tenderness: meniscal pathology . Bleeding diathesis . Patella, tendon and tibial tuberosity Pus: septic arthritis . Popliteal fossa
Move Straight leg raise . Extensor lag . Hyperextension . Fixed flexion deformity Passive flexion of knee while palpating joint for crepitus Normal range = 0-140
Special Tests Cruciate Ligaments . Ant + Post drawer tests: observe for posterior sag first = PCL tear . Lachman’s: ACL, more sensitive cf. drawer test . (Pivot shift test: only do in theatre under anaesthetic)
Collateral Ligaments . In partial flexion ~30O (relax the joint capsule) and full extension . Valgus stress (medial lig.) and varus stress (lateral lig.)
Menisci . (McMurray test) . (Apley grind test)
Completion Examine the hip and ankle. Perform a neurovascular assessment: esp. pulses Standing AP and lateral and skyline radiographs of the knee
© Alasdair Scott, 2012 151 Osteoarthritis: Key Facts
Definition Mx Degenerative joint disorder in which there is progressive loss of hyaline cartilage and new bone MDT formation at the joint surface and its margin. GP, physio, OT, dietician, orthopod
Conservative Aetiology / Risk Factors Lifestyle: ↓ wt., ↑ exercise Age (80% >75yrs) Physio: muscle strengthening Obesity OT: walking aids, supportive footwear, home mods Joint abnormality Medical Analgesia . Paracetamol Classification . NSAIDs: e.g. arthrotec (diclofenac + misoprostol) Primary: no underlying cause . Tramol Secondary: obesity, joint abnormality Joint injection: local anaesthetic and steroids
Surgical Symptoms Arthroscopic Washout Affects: knees, hips, DIPs, PIPs, thumb CMC . Mainly knees Pain . Trim cartilage . Worse ¯c movement . Remove loose bodies. . Background rest/night pain Realignment Osteotomy . Worse @ end of day . Small area of bone cut out Stiffness . Useful in younger (<50yrs) pts. ¯c medial knee OA . Especially after rest: joint “gelling” . High tibial valgus osteotomy redistributes wt. to . Lasts ~30min (e.g. AM) lateral part of joint. Deformity: e.g. genu varus Arthroplasty: replacement (or excision) ↓ ROM Arthrodesis: last resort for pain management Novel Techniques . Microfracture: stem cell release → fibro-cartilage formation Pathophysiology . Autologous chondrocyte implantation Softening of articular cartilage → fraying and fissuring of smooth surface → underlying bone exposure. Subchondral bone becomes sclerotic c cysts. ¯ OA vs. RA Proliferation and ossification of cartilage in unstressed
areas → osteophytes. OA RA Capsular fibrosis → stiff joints. Pathology Pathology - Degenerative - Inflammatory - Negative serology - Positive serology Ix Clinical Clinical Exclude Rheumatological Disease - Asymmetric - Symmetric FBC - Large joints - Small joints ESR - Early AM stiffness <30min - Early AM stiffness >1hr RF, ANA - Worse PM - Worse AM - Hands: DIPJs and PIPJs - Hands: PIPJs and MCPJs Check Renal Function - No extra-articular features - Extra-articular features Important before prescribing NSAIDs: esp. in elderly U+E Radiology Radiology - Osteophytes - Soft tissue swelling X-ray Changes - Subchondral sclerosis - Periarticular osteopenia Loss of joint space - Subchondral cysts - Periarticular erosions Osteophytes - Mild deformity - Severe deformity
Subchondral cysts Subchondral sclerosis Deformity
© Alasdair Scott, 2012 152 Hip Arthroplasty
History Complications Pioneered in 60s by Sir John Charnley Immediate Nerve injury Types Fracture Cement reaction THR Replace femoral head, neck and acetabulum Early Usually elective joint arthroplasty DVT: up to 50% w/o prophylaxis Deep infection: 0.5-1.5% Hemi-arthroplasty . Must remove metalwork before revision. Replace femoral head and neck only Dislocation (3%): squatting and adduction May be uni- or bi-polar Late Resurfacing Loosening: septic or aseptic Replacement of surface of femoral head Leg length discrepancy Metalosis Revision: most replacements last 10-15yrs Prostheses
Cemented: e.g. Thompson Preventing DVT Recommended by NICE DVT is commonest complication of THR Peak incidence @ 5-10d post-op Uncemented: e.g. Austin-Moore Easier to revise (may be useful in younger pts.) Pre-Op TED stocking Aggressive optimisation: esp. hydration Techniques Stop OCP
Posterior Approach Intra-Op Access joint and capsule posteriorly, reflecting of the Minimise length of surgery short external rotators. Using pneumatic compression boots Gives good access May have higher dislocation rate Post-Op Sciatic N. may be injured → foot drop LMWH: also rivaroxaban and dabigatran Early mobilisation Anterolateral Approach Good analgesia Incision over greater trochanter, dividing fascia lata. Physio Abductors are reflected to access joint capsule. Adequate hydration May have lower dislocation risk Sup. Gluteal N. may be injured → Trendelenberg gait Hip Resurfacing
Advantages Metal-on-metal bearings wear less Larger head → ↓ dislocation / ↑ stability Preserve bone stock making revision easier
Disadvantages Cobalt and chromium metal ion release may cause pathology (e.g. leukaemia) Risk of NOF # if mal-positioned
Indications May be used in young (<65), active people who are expected to outlive the replacement.
© Alasdair Scott, 2012 153 Knee Arthroplasty Knee Ligament Damage
Types Haemarthrosis Differential Can be uni- or bi-compartmental Cemented: UK Primary Spontaneous Uncemented: Europe w/o trauma May be 2O to coagulopathy
Aim Secondary to Trauma Immediate knee swelling Primary goal is to reduce pain 80% ACL injury O 10% 2 to patellar dislocation The Surgery 10% . Meniscal tear Performed under tourniquet . Capsular tear PCL is usually preserved . Osteochondral # ACL is usually sacrificed . Prosthesis is specifically designed to provide some compensation for this Metal prosthesis and an ethylene articular disc. Knee Locking Differential Patella surface can be re-surfaced. Meniscal tear Knee bending after 2-3 days. Cruciate ligament injury 10 days hospital stay Osteochondritis dissecans: adolescents Loose body
Complications Presentation of ACL Injury Immediate Assoc. ¯c deceleration and rotational movements Fracture Hears a pop or feels something tear Cement reaction Inability to continue sport or activity Vascular injury Haemarthrosis w/i 4-6h . SFA Instability / giving way following injury . Popliteal and genicular vessels Nerve injury . Peroneal nerve → foot drop (1%) Unhappy Triad of O’Donoghue ACL Early MCL DVT Medial Meniscus . Up to 50-70% w/o prophylaxis . 25% ¯c prophylaxis Deep infection: 0.5-15% . Must remove metalwork before revision. Mx of Meniscal Tear Depends on Late . Age Loosening: septic or aseptic . Chronicity of injury Periprosthetic #s . Location and type of tear ↓ ROM and instability . Loss of ACL Non-Surgical Symptomatic Rx: e.g. analgesia
Surgical Mx of RA in the Knee Surgical Indicated in failed medical Mx Arthroscopic or open . Partial meniscectomy Synovectomy and debridement . Meniscal repair . Can be done arthroscopically
Removal of pannus and cartilage Supracondylar osteotomy Total knee arthroplasty Mx of ACL Rupture
Non-Surgical Rest and phyio to strengthen quads and hamstrings Not enough stability for many sports
Surgical Gold-standard is autograft repair Usually semitendinosus ± gracilis (can use patella) Tendon threaded through heads of tibia and femur and held using screws.
© Alasdair Scott, 2012 154 Hallux Valgus Lesser Toe Deformities
Examination
Look Hallux . Unilateral or bilateral . Estimate degree of valgus . Rotation: nail faces medially Bunion . Prominence of 1st metatarsal head ± bursa . Evidence of inflammation: bursitis Extras . Hammer toes . Callosities on heel Aetiology Imbalance between intrinsic and extrinsic toe muscles Feel . Intrinsic: lumbricals Inflammation of bunion . Extrinsic: long flexors and extensors Localised tenderness F>M . e.g. OA of MTPJs Commoner in pts. ¯c RA ↑ ¯c age Move Assess ROM of toe joints Mx Non-surgical: appropriate footwear Completion Surgical correction Assess ROM of other toe joints . Flexor-to-extensor tendon transfer Assess gait . Arthrodesis Examine shoes: abnormal weight-bearing . Resection of proximal phalangeal head
Viva
Aetiology Familial tendency ↑ enclosed / pointed shoes Assoc. ¯c RA
Ix Wt. bearing x-rays . Degree of valgus . OA of MTPJ
Mx
Non-surgical Appropriate footwear: wide, soft Physio
Surgical Bunionectomy 1st metatarsal realignment osteotomy Excision arthroplasty
© Alasdair Scott, 2012 155 Charcot Joints
Examination
Look Swelling Deformity Pressure necrosis
Feel Joint is not tender or warm May feel crepitus Subluxation or dislocation of the joint
Move Abnormal
Completion Neurological examination of the limb . Esp. pain and proprioception Dip urine for glucose
Viva
Definition Progressive destructive joint arthropathy 2O to disturbance of sensory innervation to the joint Painless deformed joint resulting from repetitive minor trauma.
Causes
Peripheral DM Peripheral N. injury Leprosy
Central Syringomyelia Tabes dorsalis
© Alasdair Scott, 2012 156 Gait Popliteal Swellings
Phases Examination 1. Initial contact / heel strike 2. Stance Describe the Lump 3. Toe off Visible popliteal swelling 4. Swing Describe as for lump . SSS CCC TTTT FPS Abnormalities Pulsatile: swelling overlying popliteal A. Expansile: popliteal aneurysm Gait Description Cause Fluctuant and transilluminable: cystic Antalgic ↓ stance Pain ↑ swing Completion Trendelenberg Hips dip Weak abductors Continue ¯c knee exam: signs of OA Shoulders lurch to Neurovascular assessment contralateral side
Parkinsonian Slow initiation Parkinsonism Shuffling steps Poor arm swing Viva Slow turn Broad-based Lurches to one side Cerebellar lesions Differential High stepping Foot strikes ¯c ball and Common peroneal Skin + s/c tissue: lipoma slaps the ground L5 disc Artery: popliteal aneurysm Spastic Internal rotation UMN Vein: saphena varix @ SPJ Hips adducted Nerve: tibial nerve neuroma Enlarged bursae . Above knee joint line . Assoc. ¯c semimembranosus Baker’s Cyst
Baker’s Cyst Posterior herniation of knee joint capsule Assoc. ¯c degenerative knee joint disease Located below knee joint line
Dx: US
Mx Aspiration possible: high recurrence
© Alasdair Scott, 2012 157 Shoulder Examination Set-Up Expose chest and shoulders
Look
Inspect shoulder girdle and axilla Skin: scars, bruising, erythema Shape . Wasting: deltoid, supra- and infra-spinatous Winging: Seratus Anterior Weakness . Clavicular deformity Long-thoracic nerve damage: e.g. . Joint swelling axillary surgery Deformity Upper brachial plexus injury . Joint dislocation Muscular dystrophy: e.g. FSH . Scapula location . Winging of the scapula
Feel Shoulder Differential: Pain ± ↓ROM Temperature Rotator cuff: tear, tendonitis Along clavicle from SCJ to ACJ Subacromial bursitis Acromion and coracoid (2cm inf. + med. to clavicle tip) Adhesive capsulitis (frozen shoulder) Biceps tendon in bicipital groove Joints: synovitis, OA, dislocation Scapular spine Humeral head: #, dislocation Humoral head and greater and lesser tuberosities. Referred pain from diaphragm
Move: active then passive Functional screen Ask pt. to put both hands behind the head Ask pt. to reach behind back and touch shoulder blades
Abduction and adduction First 25O of abduction is supraspinatous, rest is deltoid Palpate acromion tip during abduction to determine GHJ movement . Abduction at GHJ is ~80O, rest is scapula rotation. Pain . 60-120O = impingement or rotator cuff tendonitis . 140-180 = AC osteoarthritis
Flexion and Extension Internal and external rotation External rotation most commonly ↓d in frozen shoulder
Special Tests Jobe’s Empty Can Test: Supraspinatus . Shoulder flexed @ 90O, thumb pointing down, forced flexion of shoulder
Infraspinatus + Teres Minor . Elbow flexed @ 90O, forced external rotation of shoulder
Gerber’s Lift Off: Subscapularis . Dorsum of hand placed against lumbar spine, pt. attempts to lift hand off against resistance
Scarf Test: AC Joint Dysfunction . Place pt’s. hand on contralateral shoulder . Examiner pushes pt’s. flexed elbow posteriorly, eliciting discomfort
Hawkin’s Test Shoulder: Impingement . Shoulder and elbow flexed @ 90O. . Examiner pushes hand down
Apprehension Test: GHJ Instability . Shoulder is abducted and externally rotated to 90O . Apprehension occurs as shoulder is slowly externally rotated
Completion Examine the cervical spine and elbow Perform a neurovascular assessment © Alasdair Scott, 2012 158 Hand Examination
Set-Up Expose pts. arms up to elbow Lay hands on a pillow
Look Deformities Dorsum and palms RA . Boutonniere’s Skin . Swan neck Scars: palm and carpal tunnel . Z-thumb Erythema . Ulnar deviation @ the MCPs Calcinosis and tophi . MCP volar subluxation Ulceration Dupuytron’s Ganglia Trigger Finger Mallet Finger Muscle Wasting Claw Hand Median nerve: thenar eminence Ulnar nerve: 1st dorsal interroseus Nails Onycholysis Joints Swellings Pitting Heberden’s: distal Subungual hyperkeratosis Bouchard’s: proximal Extras Elbows: rheumatoid nodules, psoriatic plaques Scalp and behind ears: psoriatic plaques
Feel Temperature Joints: pain and swelling Autonomous Sensory Areas Tendons: palm for nodules or thickening. Median: pulps of index and middle fingers Muscles Ulnar: pulp of little finger . Median nerve: thenar eminence Radial: 1st dorsal web space . Ulnar nerve: 1st dorsal interroseus
Move Wrist . Prayer and reverse prayer positions Autonomous Motor Supply . Check that fingers are opposed in prayer position Median: abductor pollicis brevis st Thumb Ulnar: 1 dorsal interosseous . Abduction Radial: MCP extension Fingers . Abduction and adduction (cross fingers for luck) . Opposition . Grip
Function Fasten and unfasten button. Pick up coin from flat surface Write name
Special Tests
Median Nerve Tinel’s Phalen’s
Ulnar Nerve Froment’s: flexion of thumb @ IPJ = weak ADductor policis de Quervain’s tenosynovitis (APL + EPB tendonitis) Finkelstein’s
Completion Neurovascular status of the upper limb. AP and lateral radiographs © Alasdair Scott, 2012 159 Dupuytren’s Contracture
Examination Viva
Look Hx Often bilateral and symmetrical Associations Tethering or pitting of palmar skin Function Visible tendon cords Previous therapy Surgical scars: Z plasties Other features of diffuse fibromatosis Fixed flexion of MCP and PIP joints . Usually little and ring fingers Garrods Pads Associations: BAD FIBERS . Thickening of dorsal skin over PIPJ Bent penis: Peyronie’s (3%) AIDS Feel DM Palpate thickened tendons FH: AD Note fixation to skin Idiopathic : commonest Booze: ALD Move Epilepsy meds and epilepsy: phenytoin Assess ROM Reidel’s thyroiditis and other fibromatoses Note fixed deformities by loss of passive ROM . Ledderhose disease Ask pt. to lay hand flat on table Fibrosis of plantar aponeurosis 5% ¯c dupuytren’s Function . Retroperitoneal fibrosis Ask pt. to pick up a coin and do up a button Smoking
Completion Abdominal exam for signs of CLD Pathophysiology Hx and Drug chart Local microvessel ischaemia → ↑ xanthine oxidase Other features of diffuse fibromatosis activity → ROS production. ROS → myofibroblast proliferation → collagen 3 formation Chronic inflammation → continued fibrosis Differential Skin contracture: look for scar from previous wound Congenital contracture of little finger Non-Surgical Mx Ulnar nerve palsy: ↓ sensation, +ve Froment’s sign Physiotherapy Allopurinol may help
Surgical Mx
Indication MCP or PIP contracture >30O
Procedures Fasciotomy Partial fasciectomy . Z-plasty to lengthen wound . Post-op physio . Can damage ulnar nerve . Often recurs Dermofasciectomy + full-thickness skin grafting . Lowest risk of recurrence Arthrodesis and amputation
© Alasdair Scott, 2012 160 Carpal Tunnel Syndrome
Examination Viva
Look Hx Wasting of thenar eminence Symptoms Scars from previous surgery over flexor retinaculum . Tingling / pain in thumb, index and middle fingers . Pain worse @ night or after repetitive actions Feel . Relieved by shaking / flicking hand Test light touch over finger pulps Causes Test light touch over the thenar eminence . Hypothyroidism . Pregnancy Move . RA Previous treatments Opponens pollicis
Abductor pollicis brevis
Causes: I WRIST Special Tests Idiopathic: commonest Tinel’s Water: pregnancy, hypothyroidism Phalen’s Radial #
Inflammation: RA, gout Completion Soft tissue swelling: lipomas, acromegaly, amyloidosis Hx Toxic: DM, EtOH Look for underlying cause and associations
Ix Differential Not typically necessary More proximal median nerve lesion Nerve conduction studies Cervical root lesion . Determine lesion location . E.g. cervical disc herniation . Determine lesion severity US
Non-surgical Mx Mx of underlying cause Wrist splints . Neutral position . Esp. @ night Local steroid injections
Surgical Mx Carpal tunnel decompression by division of the flexor retinaculum
Complications Scar formation: high risk for hypertrophic or keloid Scar tenderness: up to 40% Nerve injury . Palmar cutaneous branch of the median nerve . Motor branch to the thenar muscles Failure to relieve symptoms
Other Locations of Median Nerve Entrapment Pronator syndrome . Entrapment between two heads of pronator teres Anterior interroseous syndrome . Compression of the anterior interosseous branch by the deep head of pronator teres . Muscle weakness only Pronator quadratus FPL Radial half of FDP
© Alasdair Scott, 2012 161 Rheumatoid Hands
Examination Viva
Look Hx Symptoms Hands . Early morning stiffness Skin: joint erythema, palmar erythema . Pain Joint Swelling: MCPs and PIPs . Swelling Muscle wasting: interossei, thenar eminence Affect on life Deformity Extra-articular features: aNTI CCP Or RF 1. Ulnar deviation @ the MCPs Treatments tried so far + any complications 2. Boutonniere deformity 3. Swan neck deformity Extra-Articular Features: aNTI CCP Or RF 4. Z thumb Nodules 5. MCP volar subluxation Tenosynovitis: de Quervains and atlanto-axial subluxation Immune: vasculitis, amyloidosis Surgical Scars Cardiac: pericarditis ± effusion Wrist: carpal tunnel release Carpal tunnel Thumb: joint replacement Pulmonary: fibrosis, effusions Dorsum: tendon transfer Ophthalmic: episcleritis, scleritis, Sjogren’s Ulna stylectomy Raynaud’s
Felty’s: RA + ↓PMN + splenomegaly Wrist
Radial deviation Ix Volar subluxation of the ulnar styloid
Elbow Bloods FBC: ↓Hb, ↓PMN Rheumatoid nodules ↑ESR and ↑CRP Feel Immune: RF, anti-CCP, ANA, HLA-DR3/4
↑ temperature of swollen joints = active synovitis X-Ray Joint tenderness Soft tissue swelling Median nerve sensation Periarticular osteopenia
Loss of joint space Move Periarticular erosions Fixed flexion on prayer position Deformity ↓ ROM Mx Special Finkelstein’s MDT Tinel’s and Phalen’s GP, physio, OT, rheumatologist, orthopod
Function Conservative Precision: unbutton shirt, pick up coin from table Physio Power: squeeze fingers OT: aids and splints Writing Walking aids, splints, wheelchair Medical Analgesia Completion Steroids: IM, PO or intra-articular Hx DMARDS Examine for other features of RA Biologicals Other: CV risk, prevention of PUD and osteoporosis Presentation Symmetrical deforming polyarthropathy Surgical Signs of active synovitis Carpal tunnel decompression Signs of cause Tendon repairs and transfers . Rheumatoid nodules Ulna stylectomy . Psoriatic plaques Arthroplasty
Differential Anatomy of Rheumatoid Hands Psoriatic arthritis Boutonierre’s: rupture of central slip of extensor Jacoud’s arthropathy expansion → PIPJ prolapse through “button-hole” created by the two lateral slips. Swan: rupture of lateral slips → PIPJ hyper-extension
© Alasdair Scott, 2012 162 OA Hands
Examination Viva
Look Hx Heberden’s nodes: swelling of DIPJs Symptoms Bouchard’s nodes: swelling of PIPJs . Pain Squaring of the thumb CMC . Stiffness Affect on life Move Other joint disease ↓ ROM of passive and active motion Treatments so far
Function Unbutton shirt OA of the Hands Pick up coin from table Typically affects Writing . Thumb CMC . PIPJs Completion . DIPJs Bouchard’s Nodes are strongly assoc. c polyarticular OA Hx ¯
Examine other joints for OA
Hips, lumbar spine, knees Mx of OA Hands
Differential Non-Surgical Physiotherapy RA hands Analgesia Tophi
Surgical Joint arthrodesis
© Alasdair Scott, 2012 163 Ulnar Nerve Palsy Radial Nerve Palsy
Examination Examination
Look Look Partial claw hand: little and ring fingers Wrist drop: holds hands out in front, palms down Wasting . Hypothenar eminence Feel . Dorsal interossei Loss of sensation over the first dorsal interosseous May be sensory loss over dorsal forearm Feel Loss of sensation in ulnar distribution Move Low Move . Loss of MCP extension Weak abduction and adduction of fingers . Preserved PIPJ extension: lumbricals Weak flexion of DIPJ in little and ring fingers High: + wrist weakness Very high: + triceps weakness Special Froment’s Completion . Weak adductor pollicis → flexion of thumb IPJ Examine neck: brachial plexus injury . Compensation by FPL Examine PNS of affected limb Elbow flex test . Full elbow flexion for 1min . → paraesthesia in little and ring fingers Viva
Completion Causes Examine neck: brachial plexus injury Examine PNS of affected limb Very High → triceps paralysis + wrist drop + finger drop Just below brachial plexus Compression: crutches Viva High → wrist drop + finger drop Causes of Ulnar Nerve Palsy Occur at spiral groove Mid-shaft humerus #, Saturday night palsy Anatomical Compression Cubital tunnel syn.: elbow Low → finger drop Guyon’s canal syn.: wrist Occur at elbow Only involve posterior interosseous nerve sensation Trauma preserved Supracondylar #s of humerus Local wounds, # or dislocation Elbow dislocation
Ulnar Paradox Proximal lesions → paralysis of ulnar half of FDP → ↓ marked clawing of hand
Mx
Non-surgical Avoid repetitive flexion-extension of elbow Avoid prolonged elbow flexion Night splinting of elbow in extension
Surgical Ulnar nerve decompression Medial epicondylectomy
© Alasdair Scott, 2012 164 Mallet Finger Trigger Finger
Examination Examination
Look Look Flexion deformity of distal phalanx of one or more Flexion of middle or ring finger fingers Feel Move Palpate over palm proximally to digit for nodule. Terminal phalanx cannot be actively extended . ~ @ level of transverse palmar crease Can be passively extended Move Test active movement of finger Viva Snap on passive forced extension
Aetiology Damage to extensor tendon of terminal phalanx. Viva e.g. avulsion # due to hyperflexion injury when catching a cricket ball Pathology Tendon nodule which catches on proximal side of Mx tendon sheath → triggering on forced extension. X-ray: look for avulsion @ base of distal phalanx Often FDS tendon Splint ¯c distal phalanx in extension for 6wks to allow tendon reattachment. Causes If avulsed bone is large may fix it ¯c a Kirschner wire Idiopathic Trauma Activities requiring repetitive forceful flexion . e.g. use of heavy shears 2O to RA
Mx Steroid injection: often recurs Tendon release by sheath incision
© Alasdair Scott, 2012 165 Back Examination
Set-Up Expose pt. to waist Begin ¯c pt. standing
Look Assess gait Spinal curvature Paraspinal and trapezius muscle bulk Wall-tragus test if neck hyperflexion
Feel Paraspinal muscle bulk and tenderness Spine palpation: masses, steps Spine percussion: tenderness
Move Cervical spine movement Lateral flexion: normally ~30O Forward flexion: Schober’s Test . Mark 5cm below and 10cm above levels of PSIS (sacral dimples, ~S2) . Maximum flexion should lengthen line by ≥5cm
Lie pt. Supine Assess back rotation ¯c arms folded across chest Measure leg lengths: apparent length discrepancy in scoliosis
Sacroileitis Tests Lateral compression Stretch: adduction of hip, ¯c hip and knee flexed
Straight Leg Raise Demonstrates lumbosacral nerve root irritation Record angle @ pain onset . Lesague’s Sign . ↑ pain ¯c foot dorsiflexion
Quick Neurological Assessment of Lower Limb Power . L4: foot inversion and dorsiflexion . L5: great toe dorsiflexion . S1: foot eversion and plantar flexion Reflexes . S1: Ankle Sensation . L5: great toe and medial dorsum . S1: little toe and lateral sole
Completion Complete neurological examination of lower limb . Especially perineal sensation Consider a PR: exclude cauda equina compression
© Alasdair Scott, 2012 166 Lumbar Disc Herniation
Examination Viva
Look Hx Gait: half-flexed, painful back Occupation Loss of normal lumbar lordosis Pain: site, radiation, associated injury, worse / better Posture: sciatic list Neurology: weakness, numbness and paraesthesia . Attempt to ↓ nerve root compression by leaning Sphincter disturbance to one side to open up the neural foramen Hx or features of malignancy Effect on lifestyle Feel Previous Rx: analgesia, physio, surgery Erector spinae spasm or tenderness
Move Pathophysiology ↓ ROM: limited by pain Pre-existing lumbar spondylosis Rupture of annulus fibrosis ¯c herniation of nucleus Special Tests pulposus into spinal canal Positive straight leg raise
Neurological Risk Factors Distal weakness and sensory loss Physiological Disc Root Sensory Motor Reflex ↑ age L4/5 L5 Inner foot dorsum Hallux exten Poor posture L5/S1 S1 Outer foot sole Foot eversion Ankle Poor aerobic fitness + plantarflex Occupational Heavy manual labour Completion Frequent bending, lifting, twisting Complete neurological examination of lower limb Repetitive or static work postures . Especially perineal sensation Consider a PR: exclude cauda equina compression Psychosocial Depression
Non-Surgical Mx
Conservative Max 2d bed rest Education: keep active, how to lift / stoop Physiotherapy: “back school” Psychosocial issues re. chronic pain and disability Warmth
Medical Analgesia: paracetamol ± NSAIDs ± codeine Muscle relaxant: low-dose diazepam (short-term) Facet joint injections
Surgical Mx
Indications Progressive neurological deficit Severe incapacitating pain Failure of non-surgical options
Procedures Percutaneous microdiscectomy Endoscopic discectomy Hemilaminotomy + discectomy
© Alasdair Scott, 2012 167 Practical Surgery
Contents Minimal Access Surgery ...... 169 Enhanced Recovery After Surgery ...... 169 Surgical Complications ...... 170 Laparoscopic Cholecystectomy ...... 171 Inguinal Hernia Repair: Hernioplasty ...... 171 Appendicectomy ...... 172 Nissen Fundoplication ...... 172 Gastrectomy ...... 173 Ivor-Lewis Oesophagectomy ...... 173 Whipple’s: Pancreaticoduodenectomy...... 173 Abdominal Aortic Aneurysm ...... 174 Carotid Endarterectomy ...... 174 Bypass Grafting ...... 175 Transurethral Resection of the Prostate ...... 175 Surgical Procedures Summary ...... 176
© Alasdair Scott, 2012 168 Minimal Access Surgery Enhanced Recovery After Surgery
Advantages ERAS Commonly employed in colorectal and orthopaedic Smaller Incisions surgery ↓ post-op pain ↓ risk of wound infection Aims Faster post-op recovery Optimise pre-op preparation for surgery ↓ hospital stay Avoid iatrogenic problems (e.g. ileus) Better cosmesis Minimise adverse physiological / immunological responses to surgery May allow better visualisation and access . ↑ cortisol and ↓ insulin (absolute or relative) Can visualise and operate on pelvic organs in lap . Hypercoagulability appendicectomy. . Immunosuppression Dx and fix contralateral hernia in lap hernia repair. ↑ speed of recovery and return to function Recognise abnormal recovery and allow early intervention Disadvantages Different anatomy ↓ tactile feedback (can’t feel colon tumours) Pre-op: optimisation 2D view of 3D structures Aggressive physiological optimisation Technically challenging and old skills may be lost . Hydration Complications (e.g. haemorrhage) may be harder to Mx . BP (↑ / ↓) Expensive . Anaemia May take longer . DM . Co-morbidities Smoking cessation: ≥4wks before surgery Common Procedures Admission on day of surgery, avoidance of prolonged fast Lap cholecystectomy Carb loading prior to surgery: e.g. carb drinks Lap appendicectomy Fully informed pt., encouraged to participate in recovery Lap hernia repair
Lap colectomy (~25%) Lap fundoplication Intra-op: ↓ physical stress Short-acting anaesthetic agents Relative Contraindications Epidural use Pneumoperitoneum may not be tolerated by pts. ¯c Minimally invasive techniques severe cardiorespiratory insufficiency. Avoid drains and NGTs where possible . ↓ venous return, ↓ diaphragm movement Bleeding disorders Shocked patients Post-op: early return to function + mobilisation Multiple adhesions Aggressive Rx of pain and nausea Early mobilisation and physiotherapy Early resumption of oral intake (inc. carb drinks) Early discontinuation of IV fluids Remove drains and urinary catheters ASAP
© Alasdair Scott, 2012 169 Surgical Complications
Surgical Complications Wound Infection 5-7d post-op Immediate (<24h) Organisms: S. aureus and Coliforms Intubation → oropharyngeal trauma Surgical trauma to local structures Operative Classification Primary or reactive haemorrhage Clean: incise uninfected skin w/o opening viscus Clean/Cont: intra-op breach of viscus (not colon) Early (1d-1mo) Contaminated: breach of viscus + spillage or opening Secondary haemorrhage of colon VTE Dirty: site already contaminated – faeces, pus, trauma Urinary retention Risk Factors Atelectasis and pneumonia Pre-operative Wound infection and dehiscence . ↑ Age Antibiotic association colitis (AAC) . Comorbidities: e.g. DM
. Pre-existing infection: e.g. appendix perforation Late (>1mo) . Pt. colonisation: e.g. nasal MRSA Scarring Operative Neuropathy . Op classification and wound infection risk Failure or recurrence . Duration . Technical: pre-op Abx, asepsis Post-operative Colonic Surgery . Contamination of wound from staff Early . Ileus Mx . AAC Regular wound dressing . Anastomotic leak Abx . Enterocutaneous fistulae Abscess drainage . Abdominal or pelvic abscess Late . Adhesions → obstruction . Incisional hernia Wound Dehiscence
Presentation Haemorrhage Classification Occurs ~10d post-op Preceded by serosanguinous discharge from wound Primary: continuous bleeding starting during surgery
Reactive Risk Factors . Bleeding at the end of surgery or early post-op O Pre-Operative Factors . 2 to ↑ CO and BP . ↑ age Secondary . Smoking . Bleeding >24h post-op . Obesity, malnutrition, cachexia . Usually due to infection . Comorbs: e.g. BM, uraemia, chronic cough, Ca
. Drugs: steroids, chemo, radio Operative Factors . Length and orientation of incision . Closure technique: follow Jenkin’s Rule . Suture material Post-operative Factors . ↑ IAP: e.g. prolonged ileus → distension . Infection . Haematoma / seroma formation
Mx Replace abdo contents and cover ¯c sterile soaked gauze IV Abx: cef+met Opioid analgesia Call senior and arrange theatre Repair in theatre . Wash bowel . Debride wound edges . Close ¯c deep non-absorbable sutures (e.g. nylon) May require VAC dressing or grafting
© Alasdair Scott, 2012 170 Laparoscopic Cholecystectomy Inguinal Hernia Repair: Hernioplasty 6% of all general surgical operations Principals 15% of all general surgical outpt. consultations
1. Establish Pneumoperitoneum Open: Lichtenstein Repair Dissect down to and open the peritoneum @ umbilicus Can be performed under LA or GA Insert lap port and establish pneumoperitoneum Insert 3 further ports under direct vision 1. Enter inguinal canal . Epigastrium Skin incised along Langer lines from external ring ~5cm . R costal margin towards ASIS. . R flank Incise Camper’s (fatty), then Scarpa’s (membranous) Incise external oblique to enter inguinal canal. 2. Identify and Clip CA and CD Retract gallbladder upwards and identify Calot’s triangle 2. Mobilise and retract spermatic cord . Sup: inferior edge of liver . Med: CHD 3. Identify and dissect hernial sac . Inf: cystic duct Dissect hernial sac off cord . Contains: cystic artery, Calot’s/Lund’s node ± May incise carefully and check for viscera aberrant RHA Invaginate sac into peritoneal cavity. Key to ID cystic duct and cystic artery and differentiate from CBD and RHA – “critical view of safety” 4. Cover defect and posterior wall c¯ tension-free mesh Clip CD and CA. May use operative cholangiogram to confirm absence of stones in CBD. Laparoscopic Repair
3. Dissect and Remove GB 2 Main Repair Techniques Gallbladder dissected off liver and removed via Totally ExtraPeritoneal (TEP) umbilical port. . Use balloon to blunt dissect extraperitoneal space posterior to recti. . Reduce hernial sac and cover defect ¯c mesh Complications Trans-Abdominal Pre-Peritoneal (TAPP) Conversion to open procedure: 5% . Mesh placed through incision in peritoneum CBD injury: 0.3% Bile leak Advantages Retained stones Allows ID and repair of contralateral hernia which may Intra-abdominal haemorrhage or may not have been diagnosed. . May be controlled by compressing the hepatic Quicker recovery artery in the free edge of the Foramen of Winslow ↓ acute pain Pringle’s Manoeuvre ↓ complications ↓ chronic pain Jaundice After Cholecystectomy Disadvantages Post-hepatic Technically challenging Gallstone retention Longer operation Biliary sepsis More expensive Thermal injury: blunt dissection preferred Ligation of common hepatic or common bile duct Complications Early Pre-hepatic . Urinary retention Haemolysis after transfusion . Haematoma / seroma formation: 10% . Infection: 1% Hepatic . Intra-abdominal injury (lap) Halogenated anaesthetics Late . Recurrence (<2%) . Ischaemic orchitis: 0.5% 2O thrombosis of pampiniform plexus . Chronic groin pain / paraesthesia: 5%
Post-op Day cases unless co-morbidities Discharge ¯c mild analgesics and mild laxatives Return to work @ 1-2wks
© Alasdair Scott, 2012 171 Appendicectomy Nissen Fundoplication
Open Aim Prevent reflux, repair diaphragm 1. Access the peritoneum Transverse (Lanz) incision centred on McBurney’s point Procedure Incise Camper’s and then Scarpa’s fascia Usually laparoscopic approach Muscle splitting incisions through abdominal muscles Wrap gastric fundus around lower oesophagus Incise transversalis fascia, pre-peritoneal fat and Close any diaphragmatic hiatus peritoneum. Complications 2. Deliver caecum and find appendix Gas-bloat syn.: inability to belch / vomit ID caecum and follow taenia coli convergence at Dysphagia if wrap too tight appendicular base.
3. Ligate mesoappendix and excise appendix Identify, clamp, divide and ligate Mesoappendix and appendicular artery. Clamp, divide and ligate appendix @ base. Cauterise appendix mucosa and bury stump in caecum ¯c purse-string (absorbable suture)
4. Peritoneal lavage and close abdomen Close abdomen in layers
If appendix is macroscopically normal Remove anyway . 20% have microscopic inflammation . Avoids appendicitis in the future Search for other cause . Meckel’s . Gynae pathology
Complications Abscess formation Right hemicolectomy (e.g. for carcinoid, caecal necrosis)
Laparoscopic
Advantages Visualise and operate on pelvic organs ↓ pain and quicker recovery ↓ wound infection Improved cosmesis
Commonest Appendix Positions Retrocaecal: 65% Pelvic:30% Subcaecal:3% Anteileal: 2%
© Alasdair Scott, 2012 172 Gastrectomy Ivor-Lewis Oesophagectomy Two-stage surgical procedure for removing tumours of Antrectomy the distal two 3rds of the oesophagus. Bilroth I: simple anastomosis Billroath II / polya: duodenal stump oversewn + Procedure gastrojejunostomy 1st: abdominal roof-top incision . Assess for sub-diaphragmatic spread . Mobilisation of the stomach to form a gastric conduit . Resect para-oesophageal and cardiac LN 2nd: right thoracotomy . Mobilisation and resection of the oesophagus . End-to-end anastomosis of gastric conduit to remaining oesophagus
Whipple’s: Pancreaticoduodenectomy Total Gastrectomy Subtotal Gastrectomy Performed for Ca of the head of the pancreas Removal of: . Gastric antrum . Gallbladder . Head of the pancreas . Proximal duodenum . Regional lymph nodes
Complications
Physical Ca: ↑ risk of gastric Ca Reflux or bilious vomiting (improves ¯c time) Abdominal fullness Stricture Stump leakage
Metabolic Dumping syndrome . Abdo distension, flushing, n/v, fainting, sweating . Early: osmotic hypovolaemia . Late: reactive hypoglycaemia Blind loop syndrome → malabsorption, diarrhoea . Overgrowth of bacteria in duodenal stump Vitamin deficiency . ↓ parietal cells → B12 deficiency . Bypassing proximal SB → Fe + folate deficiency . Osteoporosis Wt. loss: malabsorption of ↓ calories intake
© Alasdair Scott, 2012 173 Abdominal Aortic Aneurysm Carotid Endarterectomy
Open Repair Indications Exposure of aorta through midline laparotomy Symptomatic (ECST, NASCET) Aortic and iliac clamping . ≥70% (5% stroke risk per yr) Replacement of aneurysmal segment ¯c dacron . ≥50% if low risk (<3%, typically <75yrs) graft . Perform w/i 2wks of presentation Asymptomatic (ACAS, ACST) Complications . ≥60% benefit if low risk Mortality . Elective: 5% Principals . Emergency: 50% Usually performed under LA MI . LA allows direct monitoring of neurological status Renal failure . Under GA, transcranial US can monitor MCA flow Anastomotic bleeding . EEG may also be used under GA Graft infection Internal, external and common carotid arteries are clamped. Spinal or mesenteric ischaemia May use temporary shunt to ensure cerebral perfusion Distal trash from thromboembolisation Lumen of internal carotid opened and plaque is removed. Aortoenteric fistula Complications 7% risk of stroke or death w/i 30d Endovascular Repair: EVAR Haemorrhage → haematoma Can be carried out under regional anaesthesia or MI GA Hypoglossal nerve damage: rare Involves interventional radiology and vascular . Tongue deviates towards affected side surgeons . Fasciculations Endograft inserted through femoral artery over a guide-wire into the aneurysmal segment. Proximal and distal stents are expanded → fixation
Complications MI Spinal or mesenteric ischaemia Renal failure Graft migration or stenosis Endoleaks: leak into aneurysm sac . 1: perigraft leakage at proximal/distal attachment . 2: retrograde flow from collaterals – lumbar, IMA . 3: leakage between graft components . 4: leakage through graft fabric
Advantages ↓ perioperative mortality (0.5-2% vs. 5%) ↓ stress in high risk pts. ↓ hospital stay Improved cosmesis
Disadvantages No data on long-term outcomes Not all aneurysms amenable . E.g. need adequate infra-renal neck (≥15mm) ↑ in late procedure-related complications Life-long monitoring ¯c CT for endoleaks No ↓ all-cause mortality at 5yrs due to fatal endograft failures (EVAR 1 and DREAM). No ↓ all-cause mortality vs. medical therapy for pts. ineligible for open repair (EVAR 2) More expensive
© Alasdair Scott, 2012 174 Bypass Grafting Transurethral Resection of the Prostate
Indications Indications V. short claudication distance Surgical Rx of choice for BPH when medical Rx has failed. Symptoms greatly affecting pt’s. QoL Development of rest pain Principals Performed under spinal anaesthetic Practicalities Cystoscopic inspection Need good proximal supply and distal run-off Locate external urethral sphincter and use as distal More distal grafts have ↑ rates of thrombosis resection landmark Saphenous vein graft preferred below inguinal lig Electrosurgical resection of prostatic tissue under direct . Either reversed or valves destroyed in situ vision . Must tie off tributaries first Send chippings for histology Prosthetic grafts may be employed Insert 3-way catheter post-op to irrigate bladder Above IL: Dacron Below IL: PTFE Complications
Procedures Immediate Aorta / double iliac occlusion TUR syndrome . Aorto-bifem . Absorption of large quantity of fluids → ↓Na . Axillo-fem (less stressful to pt.) Haemorrhage Single iliac . Aorto-fem Early . Fem-fem crossover Haemorrhage . Axillo-fem Infection SFA / PF Clot retention: requires bladder irrigation . Fem-pop . Fem-distal (distal to popliteal, i.e. tibial A.) Late Retrograde ejaculation: common Complications ED: ~10% Haematoma Incontinence: ≤10% Distal embolism Urethral stricture: LUTS following TURP Thrombosis Recurrence
© Alasdair Scott, 2012 175 Surgical Procedures Summary
Upper GI
Name Pathology Procedure Pros and Cons Dohlman’s Procedure Pharyngeal pouch Minimally invasive endoscopic stapling Nissen Fundoplication GORD Wrap fundus around distal oesophagus Can → dysphagia Heller’s Achalasia Longitudinal incision through muscularis Can → GORD cardiomyotomy propria @ the LOS Ramstedt’s Congenital pyloric Longitudinal incision through muscularis pyloromyotomy stenosis propria @ the pylorus Ivor-Lewis Oesophageal Ca Two-stage oesophagectomy Whipple’s Pancreatic Ca Pancreaticoduodenectomy
Lower GI
Name Pathology Procedure Pros and Cons Mayo Repair Umbilical Hernia Double-breast the linea alba ± sublay mesh. Lockwood Approach Femoral Hernia Low incision over hernia ¯c herniotomy and Used electively herniorrhaphy. McEvedy Approach Femoral Hernia High approach in inguinal region Used in emergency situation Herniotomy and herniorrhaphy Allows inspection and resection of non-viable bowel TEP Inguinal Hernia Totally ExtraPeritoneal lap hernia repair TAPP Inguinal Hernia Trans-Abdominal Pre-Peritoneal lap hernia repair Lat. Sphincterotomy Anal fissure Division of internal anal sphincter @ 3 Used when medical Mx fails O’clock SE: minor faecal incontinence Delorme’s Procedure Rectal prolapse Perineal approach ¯c mucosal excision
Vascular
Name Pathology Procedure Pros and Cons Trendelenberg Op Varicosities SFJ ligation Cockett’s Op Varicosities Perforator ligation Trahere Transplantation Chronic Transplant of axillary vein ¯c valve into venous deep venous leg veins Kistner Operation insufficiency Venous valvuloplasty Palma Operation Bypass venous obstruction ¯c contralateral GSV
Urology
Name Pathology Procedure Pros and Cons Palomo Operation Varicocele High retroperitoneal approach for ligation of testicular veins Transverse incision at the level of the ASIS centred on the mid-inguinal point. Lord’s Repair Hydrocele Plication of the tunica vaginalis Jaboulay’s Repair Hydrocele Eversion of the tunica vaginalis Dartos Pouch Undescended Mobilisation of testis and placement in a Dartos prevents retraction Procedure testis s/c pouch via a hole in the dartos muscle.
Head and Neck
Name Pathology Procedure Pros and Cons Sistrunk’s Operation Thyroglossal Excision of cyst and thyroglossal duct cyst
© Alasdair Scott, 2012 176 Surgical Radiology
Contents Achalasia ...... 178 Oesophageal Cancer ...... 178 Pharyngeal Pouch: Zenker’s Diverticulum ...... 179 Sliding Hiatus Hernia ...... 179 Small Bowel Obstruction ...... 180 Large Bowel Obstruction ...... 181 Volvulus ...... 182 Other AXRs ...... 182 Perforated Viscus...... 183 Tension Pneumothorax ...... 183 Diverticulosis ...... 184 Colorectal Cancer ...... 184 Ulcerative Colitis ...... 185 Crohn’s Disease ...... 185 Gallstones ...... 186 Nephrolithiasis ...... 188 Subdural or Extradural Haematoma ...... 189 Digital Subtraction Angiogram ...... 190 Cervical Spine ...... 191 Hip Fracture ...... 191 Shoulder Dislocation ...... 192 Femoral and Tibial Fractures ...... 192 Colles’ Fracture ...... 193 Other Fractures ...... 193 Fracture Complications ...... 194
© Alasdair Scott, 2012 177 Achalasia Oesophageal Cancer
Image Image Proximal dilatation of the oesophagus ¯c smooth distal Irregular, shouldered stricture of the oesophagus tapering – the bird’s beak appearance. . An “apple-core” lesion May be food particles visible. Where? Significant negative: apple-core stricture suggestive of . Distal third: adenocarcinoma (commoner) oesophageal SCC. . Proximal third: SCC . Occurs in ~3% of pts ¯c achalasia
Key Facts Key Facts Epidemiology Definition M>F = 5:1 Focal motility disorder of the oesophagus caused by ↑ in Transkei and China degeneration of the myenteric plexus of Auerbach Pathophysiology 65% adenocarcinoma Causes rd Usually idiopathic . Lower 3 O . GORD → Barrett’s → dysplasia → Ca May be 2 to Chagas disease 35% SCC rds Presentation . Upper and middle 3 . Assoc. ¯c EtOH and smoking Dysphagia to liquids then solids . Commonest type worldwide Retrosternal cramps Spread Regurgitation: esp. @ night ± aspiration pneumonia . Local → LNs → blood Wt. loss
Ix Major Risk Factors GORD → Barrett’s Ba swallow EtOH and smoking CXR: wide mediastinum + double RH boarder Achalasia Manometry: failure of relaxation + ↓peristalsis Plummer-Vinson: 20% risk of SCC OGD: exclude oesophageal SCC
Mx Presentation Progressive dysphagia Med: CCB, nitrates Wt. loss Int: botox injection, endoscopic balloon dilatation Upper 3rd: hoarseness + bovine cough Surg: Heller’s cardiomyotomy (open or lap)
Ix Dx: OGD + biopsy Staging: CT, EUS, laparoscopy, mediastinoscopy
Mx MDT Oesophagectomy: 25% have resectable tumours . Ivor-Lewis 2 stage . McKeown 3 stage . 15% 5 year survival Palliation: 75% of pts. . Analgesia . Laser coagulation . Stenting . 5% 5 year survival
© Alasdair Scott, 2012 178 Pharyngeal Pouch: Zenker’s Sliding Hiatus Hernia Diverticulum Image Image Dilated pouch (the hernia) below a smooth, short, symmetric, ring-like constriction (the GOJ). Contrast filling of blind-ended pouch adjacent to and in May be assoc. ¯c smooth area f concentric narrowing in continuity ¯c the oesophagus. the distal oesophagus: reflux-stricture.
Significant negative: apple-core stricture
Key Facts Key Facts Pathophysiology Out-pouching between crico- and thyro-pharyngeal Classification components of the inf. pharyngeal constrictor. Sliding (80%) . Pulsion diverticulum . Gastro-oesophageal junction slides up into chest Area of weakness = Killian’s dehiscence . Often assoc. ¯c GORD
Rolling (15%) Presentation . Gastro-oesophageal junction remains in Dysphagia abdomen but a bulge of stomach rolls into chest Swelling on left side of neck alongside the oesophagus Regurgitation . LOS remains intact so GORD uncommon Halitosis . Can → strangulation Mixed (5%) Mx Excision Presentation Dohlman’s Procedure: endoscopic stapling Often asymptomatic Sliding hernias → GORD: dyspepsia Rolling hernias → strangulation
Ix CXR: gas bubble and fluid level in chest Ba swallow: diagnostic OGD: assess for oesophagitis 24h pH + manometry . Exclude dysmotility or achalasia . Confirm reflux
Rx Conservative: ↓wt., raise head of bed, stop smoking Medical: PPIs, H2RAs Surgical . If intractable symptoms despite medical Rx. . Should repair rolling hernia (even if asympto) as it may strangulate.
© Alasdair Scott, 2012 179 Small Bowel Obstruction
Image Mx Dilated loops of bowel ≥3cm in width Centrally located Resuscitate: Drip and Suck Valvulae coniventes: lines go completely across Admit . Valvular flaps projecting into SB lumen NBM Many loops Aggressive rehydration c¯ 0.9% NS Many fluid level . Significant 3rd space losses . State orientation of pt.: erect or supine . On-going requirements No gas in LB . Electrolyte disturbances . Catheterise: aim for 0.5ml/kg/hr NGT Differential . Decompress upper GIT . Stops vomiting Common . Prevents aspiration Mechanical Analgesia: e.g. paracetamol + codeine phosphate . Adhesions: 60% Abx: if evidence of strangulation or perforation . Hernias Non-mechanical / Ileus Hx Vomiting Other Absolute constipation Intraluminal Colicky abdominal pain . Impacted faeces Abdominal distension . FB Past Hx: surgery or hernias . Gallstone Mural Examination . Benign stricture Dehydration . Malignant stricture Features of strangulation or perforation . Congenital atresia Surgical scars and hernias Extra-mural Bowel sounds: mechanical vs. non-mechanical . Pancreatic pseudocyst . Abscess . Congenital bands Ix Ileus . Post-op Bloods . Peritonitis FBC, CRP, amylase: inflammatory markers . Pancreatitis / local inflammation U+E: dehydration and electrolyte abnormalities . Poisons: e.g. TCAs VBG: ↑ lactate indicates strangulation . Metabolic: ↓K, ↓Na, ↓Mg, uraemia G+S, clotting: anticipation of surgery . Mesenteric ischaemia Imaging AXR Erect CXR CT ¯c oral contrast: transition point Gastrograffin follow-thru: may be therapeutic if adhesional obstruction
Mx
Mechanical Regular clinical examination: signs of strangulation Consider need for parenteral nutrition ~80% resolve w/o surgery Laparotomy + adhesiolysis ± resection ± stoma . Failure of conservative Mx: up to 72hrs . Development of sepsis . Peritonitis . Evidence of strangulation
Ileus Correct any underlying abnormalities . Electrolytes . Drugs Consider need for parenteral nutrition
© Alasdair Scott, 2012 180 Large Bowel Obstruction
Image Resuscitate: Drip and Suck Dilated loops of bowel ≥6cm in width Admit Peripherally located NBM Haustra: lines go partially across Aggressive rehydration c¯ 0.9% NS . Sacculations caused by shorter taenia coli . Significant 3rd space losses No gas in rectum . On-going requirements . Electrolyte disturbances . Catheterise: aim for 0.5ml/kg/hr Differential NGT . Decompress upper GIT Common . Stops vomiting . Prevents aspiration Mechanical Analgesia: e.g. paracetamol + codeine phosphate . Carcinoma: 60% Abx: if evidence of strangulation or perforation . Diverticular stricture: 20%
. Volvulus
Other Hx Intraluminal Symptoms . Impacted faeces . Vomiting . FB . Absolute constipation Mural . Colicky abdominal pain . Benign stricture . Abdominal distension . Malignant stricture Cause Extra-mural . Ca: change in bowel habit, ↓wt., PR bleed . Adhesions . Diverticulitis . Hernia . Abscess Examination . Haematoma Dehydration . Tumour: e.g. ovarian Features of strangulation or perforation Ileus Masses: neoplastic or inflammatory . Pseudo-obstruction: Ogilvie’s syndrome Bowel sounds: mechanical vs. non-mechanical . Metabolic: ↓K, ↓Na, ↓Mg, uraemia PR: rectal mass, impacted stool, blood . Poisons: e.g. TCAs . Mesenteric ischaemia Ix
Bloods FBC, CRP, amylase: inflammatory markers U+E: dehydration and electrolyte abnormalities VBG: ↑ lactate indicates strangulation G+S, clotting: anticipation of surgery
Imaging AXR CT ¯c oral contrast: transition point Gastrograffin enema: mechanical obstruction
Mx Regular clinical examination: signs of strangulation Consider need for parenteral nutrition Non-surgical: endoscopic stenting . May offer bridge to surgery (CREST Trial) Surgical . Indications Closed loop obstruction Obstructing neoplasm Strangulation or perforation Failure of conservative Mx . Hartmann’s procedure . Colectomy + 1O anastomosis . Palliative bypass procedure
© Alasdair Scott, 2012 181 Volvulus Other AXRs
Image Chronic Pancreatitis Inverted U / Coffee bean sign Horizontal speckled calcification @ ~ L1/L2 Emerging from LIF: sigmoid (commoner) Emerging from RIF: caecal Differential: Pancreatic Ca
Causes Alcohol Key Facts Genetic: CF, HH
Immune: lymphoplasmacytic sclerosing pancreatitis Pathophysiology ↑ TGs Long mesentery ¯c short base predisposes to torsion Structural: obstruction by stone Vascular supply may be compromised → strangulation ↑ risk in psychogeriatric pts.: disease and Rx AAA Typically a long Hx of constipation Fusiform calcification in the midline
Presentation Gallstones Cluster of circular calcifications @ ~L1 Often elderly pts. c comorbidities ¯ Grossly distended, tympanic abdomen Rigler’s Triad SBO Pneumobilia Mx Gallstone in RIF Resuscitate: drip and suck Sigmoid Rigler’s Sign . Detorse c flatus tube ¯ Air on both sides of bowel wall . May need sigmoid colectomy . Looks like double contrast . Often recurs Is falciform ligament also visible? Caecal . ~ 10% can be detorsed by colonoscopy Foreign Bodies . often needs surgery Unstable: theatre Caecostomy O Stable Right hemi ¯c 1 ileocolic anastomosis . Endoscopic removal
. Watch and wait ¯c serial radiographs Batteries Gastric Volvulus . Oesophagus: remove . Stomach: safe Film Large sharp objects Gastric dilatation . May consider laparotomy Double bubble on erect films
Presentation Vomiting Pain Failed attempts to pass NGT
Risk Factors Rolling hiatus hernia Gastric / oesophageal surgery
Mx Endoscopic manipulation Emergency laparotomy
© Alasdair Scott, 2012 182 Perforated Viscus Tension Pneumothorax
Image Image Air under the diaphragm Absent peripheral lung markings Rigler’s Sign Mediastinal shift away from abnormality
Differential Extras Spontaneous: perforated DU Surgical emphysema Iatrogenic: laparotomy / laparoscopy Evidence of cause: e.g. rib #s Traumatic Miscellaneous: e.g. via female genital tract Key Facts
Key Facts Mx: surgical emergency Decompressive thoracostomy Presentation . 14G Venflon in 2nd ICS mid-clavicular line Sudden onset, severe epigastric pain Continue resuscitation of pt. Vomiting Insert a chest drain Peritonitic abdomen
Clinical Signs Ix Respiratory distress Bloods ↑JVP, ↓BP . FBC, CRP, amylase Tracheal shift + displaced apex . U+E Hyper-resonance to percussion . G+S, clotting ↓ breath sounds Imaging ↓ vocal resonance . Erect CXR Upright for 15min first 70% show free air Pathophysiology . AXR: Rigler’s sign One way flap valve allows air to be drawn into pleural cavity on each inspiration without escape. Mediastinal shift compresses the great vessels, Mx: surgical emergency preventing filling of the heart → shock.
Resuscitation Admit Types of Pneumothorax NBM Aggressive fluid resuscitation Traumatic rd . 3 space + on-going losses Open: may be sucking . Titrate to UO Closed NGT Either may be under tension Abx: local guidelines (probably cef+met) Analgesia: morphine + cyclizine Spontaneous 1O: no underlying lung disease Preparation for Surgery 2O: underlying lung disease Anaesthetist and book theatre Bloods: clotting + G&S Consent DVT prophylaxis ECG: if >55yrs or cardiovascular disease
Laparotomy DU: abdominal washout + omental patch repair GU: excise ulcer and repair defect . Send specimen for histology to exclude Ca
Conservative May consider if pt. isn’t peritonitic Careful monitoring, fluids, Abx Omentum may seal perforation spontaneously f/up Test and Treat for H. pylori: +ve in ~90% of perfed DUs
© Alasdair Scott, 2012 183 Diverticulosis Colorectal Cancer
Image Image Typically double-contrast enema Typically double-contrast enema Out-pouchings of mucosa Apple-core stricture ¯c shouldered margins Especially around sigmoid colon Extras Extras Evidence of perforation Evidence of stricturing Evidence of obstruction: proximal flow of contrast Evidence of perforation: contrast leak Evidence of UC: lead-piping
Key Facts Key Facts
Definition Risk Factors Out-pouching of tubular structure Diet: ↓ fibre + ↑ refined carbohydrate False: composed of mucosa only IBD: CRC in 15% ¯c pancolitis for 20yrs Familial: FAP (5), HNPCC (2), Peutz-Jeghers (19) Pathophysiology Smoking 30% of Westerner’s by 60yrs Genetics F>M . No relative: 1/50 CRC risk High intraluminal pressures → herniation of mucosa . One 1st degree: 1/10 through muscularis propria @ points of weakness NSAIDs / Aspirin (300mg/d): protective where perforating arteries enter. May be part of Saint’s Triad Presentation (left-sided) . Diverticular disease Change in bowel habit . Hiatus hernia PR mass: 60% . Cholelithiasis Obstruction: 25% Tenesmus Diverticular Disease PR bleed Altered bowel habit Systemic: wt. loss, malaise Left-sided colic: relieved by defaecation Rx Dukes Staging . High-fibre diet, mebeverine may help Sir Cuthbert Dukes: St. Mary’s Pathologist . Elective laparoscopic sigmoid colectomy
Spread % 5ys Diverticulitis A Confined to bowel wall 90 Left-sided abdominal pain and localised tenderness B Through bowel wall but no LNs 60 Pyrexia C Regional LNs 30 D Distant mets <10 Ix CT has very high sensitivity and specificity Mx Water soluble contrast studies may occasionally be MDT helpful Colonoscopy: allows biopsy to grade tumour
Hinchey Grading Stage ¯c CT or MRI 1: small confined pericolic abscess (<5% mortality) 60% amenable to radical therapy 2: large abscesses extending into pelvis (<5%) . Excision depends on lymphatic drainage, mobility 3: purulent peritonitis (~15%) of bowel and blood supply @ excision margins. . Laparoscopic resection under ERAS pathway is 4: faecal peritonitis (~45%) current standard of care.
. Adjuvant 5-FU for Dukes C: ↓ mortality by 25% Mx
Resus: admit, NBM, fluids, Abx 1-2: surgery rarely needed Screening 3: on table washout may suffice FOB . 60-75yrs 4: Hartmann’s . Home testing every 2yrs + colonoscopy if +ve
. ↓ risk of dying from CRC by 25% Other Complications Flexi Sig Perforation . Introduced in 2011/12 Abscess . 55-60yrs Fistula . One of flexi sig Bleeding . ↓ mortality by ~45% Stricture
Prognosis 10-30% recurrence w/i a decade © Alasdair Scott, 2012 184 Ulcerative Colitis Crohn’s Disease
Image Image Usually a double contrast enema Small bowel follow through or enteroclysis Lead-piping: no haustra . Replaced by CT enterography or CT enteroclysis Mucosal thickening ± thumb-printing Rose-thorn ulcers Pseudopolyps String sign of Kantor: narrow terminal ileum Cobble-stoning: ulceration of mural oedema Extras Skip lesions Transition point to normal bowel Apple-core lesion Extras Evidence of perforation: contrast leak
Key Facts Key Facts Pathology Mucosal inflammation Pathology Contiguous disease: rectum proximally Transmural, non-caseating granulomatous inflammation Broad, shallow ulceration Non-contiguous: anywhere from mouth to anus Pseudopolyps: islands of regenerating mucosa . Predilection for terminal ileum No strictures, fistulae, granulation Deep, serpiginous ulceration + mucosal oedema . → cobblestone mucosa Severe Attack: Truelove and Witts Criteria Prominent strictures, fistulae Hx: motions >6/d + large PR bleed o/e: temp >37.8 + HR >90 Severity Ix: ESR >30 + Hb <10.5 Clinical: ↑ temp, ↑HR, wt. loss Ix: ↑EXR/CRP, ↑WCC, ↓albumin, ↓Hb Acute Mx Resus: NBM, IV hydration, analgesia Acute Mx Hydrocortisone: IV + PR Resus: NBM, IV hydration, analgesia LMWH Hydrocortisone: IV ± PR Monitoring: examination, stool chart, bloods Abx: metronidazole . Improving: PO steroids + mesalazine LMWH . Deteriorating: ciclosporin, infliximab, surgery Dietician review: elemental diet or parenteral nutrition Monitoring: examination, stool chart, bloods Complications . Improving: PO steroids Toxic megacolon . Deteriorating: methotrexate, infliximab, surgery Haemorrhage Ca: CRC in 15% ¯c pancolitis @ 20yrs Complications Fistulae Strictures Abscesses Malabsorption
Extra-Intestinal Features of IBD
Skin Clubbing Erythema nodosum PG (esp. UC)
Mouth Aphthous ulcers
Eyes Anterior uveitis Episcleritis
Joints Large joint arthritis Sacroileitis
Hepatic Fatty liver Chronic hepatitis → cirrhosis Gallstones (esp. CD) PSC + cholangiocarcinoma (esp. UC)
Other AA amyloidosis Oxalate renal stones © Alasdair Scott, 2012 185 Gallstones
Imaging Key Facts
US Epidemiology Stones → acoustic shadow ~8% of the population >40yrs Dilated ducts: >6mm Incidence ↑ over last 20yrs: western diet . ± stones in ducts Slightly ↑ incidence in females Inflamed GB: wall oedema 90% of gallstones remain asymptomatic
Formation ERCP Endoscopic retrograde cholangiopancreatography General Composition . Side-viewing endoscope Phospholipids: lecithin . Cannulation of sphincter of Oddi Bile pigments (broken down Hb) . Injection of radiocontrast allows biliary tree Cholesterol imaging Film Aetiology . Filling defects: stones Lithogenic bile: Admirand’s Triangle . Duct dilatation Biliary sepsis . Stricturing GB hypomotility → stasis PSC . Pregnancy, OCP Lap chole . TPN, fasting Cholangiocarcinoma . Extrinsic compression: Ca pancreas Cholesterol Stones: 20% Therapeutics Large . Sphincterotomy + trawling of ducts allows stone Often solitary removal. Formation ↑ according to Admirand’s Trangle . Strictures may be stented or dilated . ↓ bile salts Complications . ↓ lecithin . Pancreatitis: 5% . ↑ cholesterol . Bleeding: esp. in jaundiced pts. Risk factors Check clotting first . Female . Bowel perforation . OCP, pregnancy . Contrast allergy . ↑ age . High fat diet and obesity . Racial: e.g. American Indian tribes . Loss of terminal ileum (↓ bile salts) MRCP MR cholangiopancreatography Pigment Stones: 5% . Non-invasive and no contrast necessary Small, black, gritty, fragile . No therapeutic capabilities: Dx only Calcium bilirubinate Film Associated ¯c haemolysis . Filling defects
. Strictures Mixed Stones: 75% . Duct dilatation Often multiple Cholesterol is the major component PTC Percutaneous transhepatic cholangiography . Injection of contrast into biliary tree via needle Complications directly through skin. . Not commonly performed now In the Gallbladder Contrast fills from proximal to distal (cf. ERCP) 1. Biliary Colic Look for presence of needle cannulating a duct. 2. Acute cholecystitis ± empyema No endoscope visible 3. Chronic cholecytsitis 4. Mucocele 5. Carcinoma 6. Mirizzi’s syndrome
In the CBD 1. Obstructive jaundice 2. Pancreatitis 3. Cholangitis
In the Gut 1. Gallstone ileus
© Alasdair Scott, 2012 186 Pancreatitis Acute Cholecystitis
Common Causes Pathogenesis Gallstones: 45% Stone or sludge impaction in Hartmann’s pouch Alcohol: 25% → chemical and / or bacterial inflammation Idiopathic: 20% (?microstones) 5% are acalculous: sepsis, burns, DM
Presentation Presentation Vomiting + severe epigastric pain Continuous severe RUQ pain → right scapula Fever Fever Hypovolaemia Murphy’s sign Bruising: Cullen’s and Grey-Turner’s Boas’ sign: hyperaesthesia below R scapula
Modified Glasgow Criteria Ix Valid for EtOH and Gallstones Urine: ↑ cBR, ↓ urobilinogen Assess severity and predict mortality Bloods Ranson’s criteria are only applicable to EtOH and can . FBC, amylase, CRP only be fully applied after 48hrs. . U+E: dehydration . LFTs PANCREAS . Clotting and G+S: anticipation of surgery PaO2 <8kPa 1 = mild Imaging Age >55yrs 2 = mod . Erect CXR: exclude perfed DU Neutrophils >15 x109/L 3 = severe . US: stones, inflammation, dilated ducts Ca2+ <2mM Renal function U>16mM Mx Enzymes LDH>600iu/L AST>200 iu/L Conservative Albumin <32g/L NBM Sugar >10mM IV hydration and correction of electrolyte abnormalities Analgesia: e.g. paracetamol + pethidine Ix Abx: cefuroxime + metronidazole Urine: ↑ cBR, ↓ urobilinogen 80-90% settle over 24-48hrs Bloods . FBC, amylase, CRP (>150 in 1st 48hrs = severe) Surgical . U+E: dehydration If <72hrs: may perform “hot gallbladder” . LFTs: cholestatic picture Otherwise, elective lap chole @ 6-12wks . Ca, glucose, ABG: scoring Imaging Empyema . CXR: exclude perfed DU, ARDS High fever . AXR: sentinel loop, pancreatic calcification RUQ mass . US: gallstones + dilated ducts Percutaneous drainage: cholecystostomy . Contrast CT: Balthazar severity score
Mx Principals . Mx @ appropriate level: e.g. ITU if severe . Constant reassessment is key: esp. fluid balance Conservative . Aggressive fluid resuscitation + UO monitoring . NBM + NGT . Analgesia: pethidine via PCA . Penems if suspicion of sepsis Interventional . ERCP may be needed if 2O to gallstones
Complications Early . Hypovolaemia → shock and renal failure . SIRS → ARDS and DIC . Metabolic: ↑ glucose, ↓Ca Late . Pseudocyst: 20% . Pancreatic necrosis, infection and abscess . Bleeding: e.g. from splenic artery . Thrombosis: e.g. portal vein . Fistula formation: e.g. pancreatico-cutaneous
© Alasdair Scott, 2012 187 Nephrolithiasis
Image Key Facts
IVU Stone Types Failure of distal flow of contrast Calcium oxalate: 75% Standing column of contrast Triple phosphate (struvite): 15% Clubbing of calyces . Ca Mg NH4 – phosphate Delayed, dense nephrogram . May form staghorn calculi . Assoc. c proteus infection Visible stone ¯ Urate: 5% (radiolucent) Ask to see KUB control film . Double if confirmed gout 90% of stones radio-opaque Cystine: 1% (faint) . Assoc. ¯c Fanconi Syn. Technical 600x radiation dose of KUB Pathophysiology Urograffin contrast injection ↑ concentration of urinary solute Immediate film + 30min + 1h ↓ urine volume Urinary stasis Contraindications to IVU Contrast allergy Common Anatomical Sites Pregnancy Pelviureteric junction Severe asthma Pelvic brim Metformin Vesicoureteric junction Significant renal impairment Ureteric Colic Alternative Severe loin pain radiating to the groin Non-contrast CT-KUB is gold standard Assoc. ¯c n/v 99% of stones visible Pt. cannot lie still
Mx
Initial Analgesia IV or oral fluids
Conservative: <5mm in lower 1/3 of ureter 90-95% pass spontaneously Sieve urine for OPD stone analysis
Medical Expulsive Therapy: 5-10mm Nifedipine or tamsulosin Most pass w/i 48h
Active Stone Removal Indications . Stones >10mm . Persistent obstruction . Renal insufficiency . Infection Procedures . Extracorporeal shockwave lithotripsy . Ureterorenoscopy + Dormier basket removal . Percutaneous nephrolithotomy . Lap or open stone removal
Febrile c¯ Renal Obstruction Surgical emergency Percutaneous nephrostomy or ureteric stent IV Abx: e.g. cefuroxime 1.5g IV TDS
© Alasdair Scott, 2012 188 Subdural or Extradural Haematoma
Imaging Key Facts
Axial Non-Contrast CT Head Brain Injury Extradural: lentiform opacification Subdural: sickle-shaped opacification Primary Occurs @ time of injury as result of direct injury Extras Diffuse Midline shift . Concussion: temporary ↓ in brain function Associated cerebral contusion: coup + contra-coup . Diffuse axonal injury Associated sub-arachnoid haemorrhage Focal Colour of haematoma . Contusion . White (hyperdense): acute . Intracranial haemorrhage . Pale grey (hypodense): chronic (~3wks) Ask to bony window to accurately assess for skull # Secondary Occur after primary injury Causes . ↑ ICP . Infection . Hypoxia or hypercapnoea . Hypotension
Monroe-Kelly Doctrine Cranium is rigid box total volume of intracranial contents must remain constant if ICP is not to change. ↑ in volume of one constituent → compensatory ↓ in another: . CSF . Blood (esp. venous) These mechanisms can compensate for a volume change of ~100ml before ICP ↑. . As autoregulation fails, ICP ↑ rapidly → herniation.
Cushing Reflex: imminent herniation Hypertension Bradycardia Irregular breathing
NICE Indications for Head CT Basal or depressed skull # Amnesia >30min retrograde Neurology: seizures, focal weakness, blown pupil GCS: <13 @ scene or <15 2h after trauma Sickness: persistent vomiting
Any amnesia or LOC + 1 of Dangerous mechanism >65yrs Coagulopathy
© Alasdair Scott, 2012 189 Digital Subtraction Angiogram
Image Key Facts Vessel stenosis Distal filling by collaterals Definitions
Extras Acute: ischaemia <14d Aortoiliac occlusion → Leriche Syndrome Incomplete: limb not threatened (e.g. thrombosis) Complete: limb threatened (e.g. embolism) . Loss of limb unless intervention w/i 6hrs Irreversible: requires amputation
Chronic: stable ischaemia >14d Critical: ankle pressure <50mmHg + either . Persistent pain requiring opioid analgesia . Ulceration or gangrene
Presentation
Acute Chronic Pain Asymptomatic Pulseless Intermittent claudication Pallor Rest pain Cold Ulceration and gangrene Paraesthesia Leriche Syndrome Paralysis . ED + buttock claudication
Risk Factors
Modifiable Non-modifiable Smoking FH and PMH BP Male DM control ↑ age Hyperlipidaemia Genetic ↓ exercise
Mx of Chronic Ischaemia Non-surgical . CV risk factor control . Antiplatelet agents . Analgesia . Graded exercise programs: walk through pain Interventional . Angioplasty ± stenting Surgical . Reconstruction . Endarterectomy . Amputation
Mx of Acute Ischaemia Resus: NBM, hydration, analgesia UH IVI: prevent thrombus extension Angiography: only if incomplete occlusion Surgery . Embolectomy ¯c Fogarty catheter . Emergency reconstruction Complications . Reperfusion injury → compartment syndrome . Chronic pain syndromes Treat cause . e.g. warfarinise . Mx CV risk
© Alasdair Scott, 2012 190 Cervical Spine Hip Fracture
Imaging Imaging Views Need orthogonal views: AP + Lat . Lateral Follow Shenton’s lines . AP Intra- or extra-capsular? . Open-mouth “Peg” view Displaced or non-displaced: Garden classification Adequacy . Must see C7-T1 junction Extras . May need swimmer’s view ¯c abducted arm Osteopaenic? Alignment: 4 lines Osteoarthritic? . Ant. vertebral bodies Check for pelvic ring #s . Ant. vertebral canal . Post. vertebral canal . Tips of spinous processes Key Facts Bones: shapes of bodies, laminae, processes Cartilage: IV discs should be equal height Epidemiology Soft tissue 50% >80yrs . Width of soft tissue shadow anterior to upper vertebrae should be 50% of vertebral width. F>M=3:1 30% mortality @ 1yr 50% never regain pre-morbid functioning
Clearing the C-Spine Classification
Intracapsular: subcapital, transcervical, basicervical Clinical Clearance Extracapsular: Intertrochanteric, subtrochanteric
Indication: NEXUS Criteria Garden Classification of Intracapsular Fractures Neurological deficit 1. Incomplete #, undisplaced Spinal tenderness in the midline 2. Complete #, undisplaced Altered consciousness 3. Complete #, partially displaced Intoxication 4. Complete #, completely displaced Distracting injury Initial Mx: Optimise the Pt. Method Resus: hydration, neurovascular status, analgesia Examine for bruising or deformity Anaesthetist and book theatre Palpate for deformity and tenderness Bloods: FBC, U+E, clotting, x-match 2u Ensure pain-free active movement CXR DVT prophylaxis ECG Radiological Clearance Films: orthogonal x-rays Get consent Indications Pt. doesn’t meet criteria for clinical clearance Surgical Mx
Modalities Intracapsular Radiograph initially 1,2: ORIF ¯c cancellous screws . Clear if normal radiograph and clinical exam 3,4: CT C-spine if abnormal radiograph or clinical exam . <55: ORIF ¯c screws. f/up in OPD and do arthroplasty if AVN develops (in 30%) . >55: THR or hemiarthroplasty
Extracapsular ORIF ¯c DHS
Discharge Involve OT and physios Discharge when mobilisation and social circumstances permit.
Specific Complications AVN of fem head in displaced #s: 30% Non / mal-union: 10-30% Infection Osteoarthritis
© Alasdair Scott, 2012 191 Shoulder Dislocation Femoral and Tibial Fractures
Imaging Imaging Typically anterior dislocation ¯c humeral head located Request AP and lateral antero-inferiorly. Bankhart lesion: damage to glenoid labrum Hill-Sachs lesion: cortical depression in posterolateral Key Facts part of humeral head. Mx Resuscitate and Mx life-threatening injuries first Key Facts Assess neurovascular status of limb . Urgent angiography if distal pulses compromised Presentation X-match: femoral – 4u, tibial – 2u Severe pain Open Loss of shoulder contour . Analgesia: morphine and metoclopramide Humeral head palpable in infraclavicular fossa . Assess: NV status + photo . Asepsis: wash, cover ¯c sterile soaked gauze Mx . Alignment: reduce and splint Resuscitate . Abx: augmentin 1.2g IV Analgesia . Anti-tetanus Assess NV deficit: 5% axillary nerve injury Debridement and fixation in theatre . ORIF Reduction under sedation: e.g. propofol O . Ex-Fix . Hippocratic: Longitudinal traction ¯c arm in 30
abduction and counter traction @ the axilla . Kocher’s: external rotation of adducted arm, Gustillo Classification of Open #s anterior movement, internal rotation 1. Wound <1cm in length Sling for 3-4wks 2. Wound ≥1cm ¯c minimal soft tissue damage Physio 3. Extensive soft tissue damage
Complications Clostridium perfringes Recurrent dislocation Most dangerous complication of open # . 90% of pts. <20yrs with traumatic dislocation Wound infections and gas gangrene Axillary N. injury ± shock and renal failure Rx: debride, benpen + clindamycin
Other Complications Femoral . Hypovolaemic shock . NV: SFA and sciatic nerve Tibial . NV injury . Compartment syndrome Fat embolism
© Alasdair Scott, 2012 192 Colles’ Fracture Other Fractures
Imaging Monteggia rd Extra-articular # of the distal radius # of proximal 3 of ulna shaft Dorsal displacement of distal fragment Anterior dislocation of radial head at capitellum Dorsal angulation of distal fragment May → palsy of deep branch of radial nerve → weak ± avulsion of ulna styloid finger extension but no sensory loss
Extras Galleazzi rds ↓ radial height (normal = 11mm) # of radial shaft between middle and distal 3 ↓ radial inclination (normal = 22O) Dislocation of distal radio-ulna joint Loss of volar tilt (normal = 11O volar)
Supracondylar Humeral # Key Facts Classification Eponym Extension: distal fragment displaces posteriorly Described clinically by Irish surgeon Abraham Colles in Flexion: distal fragment displaces anteriorly 1814. Dinner fork deformity Complications NV: brachial artery and median nerve mainly Mx Compartment syndrome Resuscitate + Mx life-threating injuries Malunion: gunstock deformity (cubitus varus)
Assess NV injury: median N. and radial A. Reduction + fixation . Haematoma block or Bier’s block (c¯ prilocaine) Proximal Humerus # . Dorsal backslab ¯c 3-point pressure Surgical neck: axillary nerve damage Fracture clinic appointment for ortho assessment Shaft: radial nerve → wrist drop Mx: collar and cuff or ORIF Specific Complications Median N. injury Frozen shoulder / adhesive capsulitis Distal Fibula Tendon rupture: esp. EPL Carpal tunnel syn. Weber Classification Mal- /non-union Relation of # to joint line A: below joint line B: at joint line C: above joint line B and C represent possible injury to the syndesmotic ligs between tib and fib → instability
Growth Plate Damage to physis → abnormal bone growth SH2 is commonest (~75%) SH5: biggest risk to physis
Salter-Harris Classification 1. Straight across 2. Above 3. Lower 4. Through 5. CRUSH
Pelvic Fracture
Young and Burgess Classification Lateral compression: ipsilateral pubic rami #s AP compression: open book # Vertical shear: inherently unstable
Complications Haemorrhage Urethral injury Bladder injury © Alasdair Scott, 2012 193 Fracture Complications
General Complications Nerve Injury
Tissue Damage Seddon Classification Haemorrhage and shock Neuropraxia: temporary interruption of conduction Infection Axonotmesis Muscle damage → rhabdomyolysis . Disruption of axon ¯c preservation of connective tissue framework Anaesthesia . Recovery possible Anaphylaxis Neurotmesis Damage to teeth . Disruption of entire nerve fibre Aspiration . Recovery incomplete
Prolonged Bed Rest Compartment Syndrome Chest infection, UTI Oedema → ↑ compartment pressure → vascular compromise Pressure sores and muscle wasting Compartment pressure > capillary pressure → ischaemia VTE Pain > clinical findings and pain on passive stretch ↓ BMD Mx Elevate limb and remove bandages and cast Specific Complications Fasciotomy
Immediate Problems ¯c Union Neurovascular damage Delayed union: union takes longer than expected Visceral damage Non-union: # fails to unite Mal-union: # unites in imperfect position Early Compartment syn. Causes: 5Is Infection (worse if assoc. ¯c metalwork) Infection Fat embolism → ARDS Ischaemia Interfragmentary movement Late Interposition of soft tissue Problems ¯c union Intercurrent illness AVN Growth disturbance Mx Post-traumatic osteoarthritis Optimise biology: infection, bone graft, blood supply, bone Complex regional pain syndromes graft, BMPs Myositis ossificans Optimise mechanics: ORIF
Myositis Ossificans Heterotopic ossification of muscle @ sites of haematoma formation → restricted, painful movement Commonly affects the elbow and quadriceps Rx: excise
Complex Regional Pain Syndrome 1: Sudek’s Atrophy
Presentation Wks – months after injury Affects neighbouring area Pain, hyperalgesia and allodynia Vasomotor: hot and sweaty or cold and cyanosed Skin: swollen or atrophic NM: weakness, contractures
Mx Usually self-limiting May need amitriptyline / gabapentin
© Alasdair Scott, 2012 194 Instruments
Contents Vascular Access ...... 196 Phlebotomy ...... 198 Airways and Breathing ...... 199 Perioperative Mx ...... 202 General Surgery ...... 205 Urology ...... 209 Trauma and Orthopaedics ...... 212 Miscellaneous ...... 216
© Alasdair Scott, 2012 195 Vascular Access
Peripheral Venous Cannula Triple Lumen Central Venous Catheter
Indication Indication Peripheral administration of fluid and drugs CVP measurement: fluid balance Drugs requiring central administration Features . Amiodarone, mannitol TPN Colour Gauge Flow Rate (ml/min) Yellow 24 15 Method Blue 22 30 Inserted using the Seldinger technique under US Pink 20 60 . Trendelenberg position Green 18 90 . Sterile Grey 16 230 . Under LA Brown 14 270 . Use US guidance . Order a CXR afterwards Poiseuille’s Law Internal jugular, Subclavian and Femoral veins Flow rate . Proportional to the r4 Complications . Inversely proportional to length Immediate Method Pneumothorax Inserted into a peripheral vein under ANTT Arrhythmia Malposition into an artery Complications Early Haematoma Haematoma formation Malplacement Infection Blockage Catheter occlusion Superficial thrombophlebitis
Late Thrombosis Sympathetic chain → Horner’s syndrome Phrenic nerve damage → hiccough, weak diaphragm
Other Procedures Using Seldinger Technique Angiography Chest drain insertion Percutaneous endoscopic gastrostomy
© Alasdair Scott, 2012 196 PICC Line Tessio Catheter
Indication Haemodialysis
Indication Features Long-term central access: abx, chemo, TPN Tunnelled subcutaneously Cuffs promote tissue reaction → better seal Method Arterial limb takes blood to machine Inserted into a peripheral vein: e.g. cephalic Venous limb takes dialysed blood back to pt. Advanced until the tip sits in the SVC. X-ray to confirm position Method Sterile insertion under x-ray guidance Complications Arterial limb sits more proximally to ↓ recirculation
Early Complications Arrhythmias Bleeding Early Pneumothorax Late Arrhythmias Thrombosis Bleeding Catheter occlusion Infection Late Thrombosis Catheter occlusion Hickman Line Infection
Port-a-Cath
Indication Long-term central access: abx, chemo, TPN, dialysis
Method Indications Tunnelled under skin to enter IJV and lay in SVC Long-term chemotherapy or antibiotics
Complications Features Centrally placed catheter Early Subcutaneous port made of self-sealing silicone rubber O Pneumothorax Accessed ¯c 90 Huber point needle Arrhythmias V. low infection risk as skin breech is very small Bleeding
Late Thrombosis Catheter occlusion Infection
© Alasdair Scott, 2012 197 Phlebotomy
Blood Culture Bottles Vacutainers
Purple Indications Contains: EDTA Investigate a patient ¯c pyrexia . Prevents clotting and keep cells alive Use Features . FBC, CD4, cross-match Red: anaerobic culture medium . i.e. things you want to do ¯c cells Blue: aerobic culture medium Yellow Method Contains: Activated gel Take blood using ANTT . Promotes clotting Replace needle with a clean one . Gel facilitates easy separation of serum and red Wipe top of bottles ¯c alcohol cells. Fill anaerobic (red) bottle first Use Fill in pt. details and send to path lab . Serum chemistries, enzymes Some hospitals have specific teams that take cultures Red Post-Op Pyrexia Contains: Nothing, glass tube . “a clotted sample” Early: 0-5d post-op Use Blood transfusion . Immunology, Abs, Ig, protein electrophoresis Physiological: SIRS from trauma: 0-1d Pulmonary atelectasis:24-48hr Green Infection: UTI, superficial thrombophlebitis Contains: Li heparin Drug reaction . Anticoagulant Use Delayed: >5d post-op . Plasma chemistries, enzymes Collections Pneumonia Blue DVT / PE Contains: Citrate Wound infection: 5-7d . Chelates Ca2+, preventing clotting Anastomotic leak: 7d Use . Coagulation determinates Examination of Post-Op Febrile Pt. Special 2+ Observation chart, notes and drug chart . Ca is added back to sample to allow clotting. Wound . Therefore need precise blood volume DRE Legs Grey Chest Contains Lines . Fluoride: inhibit glycolysis Urine . Oxalate: anticoagulate Stool Use . Glucose
Black Contains: citrate . Anticoagulant Use . ESR Special . Need precise blood volume
Order of Draw Blood cultures Blue Yellow Green Purple Grey
© Alasdair Scott, 2012 198 Airways and Breathing
Endotracheal Tube McKintosh Laryngoscope
Indications To acquire a definitive airway in elective or emergency situations . Abdominal surgery . Head injury
Features Cuffed . Adults . Secured tube and prevents aspiration
Uncuffed . Children . Avoid damaging the larynx Indications Size ET intubation . Female: 7.5 . Male: 8.5 Features Double lumen Handle + light source . Allow single lung ventilation Removable blade: come in different sizes . Used in thoracic surgery . McKintosh = Curved (preferred) Radio-opaque line: blue . Miller = Straight
Method Method Pt. is pre-oxygenated, sedated and a muscle relaxant Pt. is appropriately sedated and muscle relaxed. may be used. Inserted with left hand, tongue displaced laterally Inserted into the trachea under direct vision using a Tip inserted into valecular laryngoscope. Light source allows direct vision of vocal cords for Crichoid pressure may ↓ risk of aspiration intubation. Bougi may be used for difficult airways . Smaller Complications . Anterior curvature Oropharyngeal trauma . Can feel tracheal rings with tip Laryngeal trauma Position confirmed and tube secured ¯c tape C-spine injury: e.g. ¯c atlanto-axial instability
Check Position Inspect for symmetrical chest movements Listen over epigastrium for gurgling Listen over each lung for air entry Use CO2 monitor CXR: just above carina
Complications
Early Oropharyngeal trauma Laryngeal trauma C-spine injury: e.g. ¯c atlanto-axial instability Oesophageal intubation Bronchial intubation
Delayed Sore throat Tracheal stenosis Difficult wean
Definitive Airway Airway which is protected from aspiration
Types Orotracheal or nasotracheal airway Surgical: tracheostomy, cricothyroidotomy
© Alasdair Scott, 2012 199 Temporary Tracheostomy Tube Laryngeal Mask Airway
Indications Non-definitive airway used in short day-case surgery where a pt. doesn’t require intubation. May also be used in an emergency situation if not able to insert ET tube.
Features Inflatable cuff to create a seal over the larynx
Method Cuff is deflated and lubricated ¯c aquagel Indications Inserted ¯c open end pointing down towards the tongue Definitive surgical airway Sits in orifice over the larynx Acutely: maxillofacial injuries Cuff inflated and tube secured with tape Electively: ITU pts. ¯c prolonged ventilation Complications Features Dislodgement Obturator Leak Cuff to prevent aspiration Pressure necrosis in airway Flange to secure to pts. neck Aspiration: non-definitive airway Insufflation port.
Method Transverse incision ~1cm above sternal notch Oropharyngeal / Guedel Airway Dissect through fascial planes and retract ant. jugular veins and strap muscles Indications Divide thyroid isthmus Airway adjunct used in pts. with impaired level of Stoma fashioned between 2nd and 4th tracheal rings by consciousness to maintain a patent airway removing anterior portion of tracheal ring e.g. during extubation Insert trachy ¯c obturator Secure with tapes. Method Sized from incisors to angle of mandible Advantages over ET Tube Insert upside down and rotated once in the oral cavity Easier to wean pts. No need for sedation Complications ↓ discomfort Oropharyngeal trauma Easier to maintain oral and bronchial hygiene Gagging → vomiting ↓ risk of glottis trauma ↓ dead space reduces work of breathing Nasopharyngeal Airway Complications Indications Immediate Airway adjunct used in pts. with impaired level of Haemorrhage consciousness to maintain a patent airway Surgical trauma: oesophagus, recurrent laryngeal N. Pneumothorax Method Sized according to diameter of pts. little finger Early Inserted into the nasopharynx using a rotational action Tracheal erosion Safety pin and flared end prevents the tube becoming Tube displacement irretrievable. Tube obstruction Surgical emphysema Complications Aspiration pneumonia Bleeding: trauma to nasal mucosa Intracranial placement Late Tracheomalacia Contraindications Tracheo-oesophageal fistula Absolutely contraindicated in pts. ¯c facial injuries or Tracheal stenosis evidence of basal skull # . Racoon eyes . Battles’ Sign: mastoid bruising . Haemotympanum . SCF rhinorroea or otorrhoea
© Alasdair Scott, 2012 200 Oxygenation Ventilation
Nasal Prongs Types 1-4L/min = 24-40% O2 Non-invasive: tight-fitting mask Invasive: ET or tracheostomy Simple Face Mask Variable O2 concentration depending on O2 flow rate Indications Respiratory failure refractive to less invasive Rx Non-rebreathing Hudson Mask At risk airway Reservoir bag allows delivery of high concentrations of Elective post-op ventilation O2. Physiological control (e.g. hyperventilation in ↑ICP) 60-90% at 10-15L Complications Venturi Mask Cardiovascular compromise Uses the Bernoulli Principle Pneumothorax . ↑ speed of flow → ↓ pressure Fluid retention . Altering O2 flow speed can entrain a known VILI concentration of air for dilution VAP Provide precise O2 concentration at high flow rates Complications of artificial airway: e.g. tracheal stenosis . Yellow: 5% . White: 8% . Blue: 24% . Red: 40% . Green: 60%
CPAP Tight fitting mask connected to reservoir or high O2 flow allowing FiO2 ~1. Positive pressure is applied continuously to the patient’s airway. Benefits . Recruitment of collapsed lung units . ↓ shunt → ↑PaO2 . ↑ lung volume → improved compliance → ↓ work of breathing. CPAP usually has little effect on PaCO2
© Alasdair Scott, 2012 201 Perioperative Mx
Ryles Nasogastric Tube Feeding NG Tube
Indications
Provide enteral nutrition Indications . Catabolic: sepsis, burns, major surgery Draining the stomach . Coma/ITU Part of the “drip and suck” for the management of bowel . Malnutrition obstruction. . Long-term feeding Pts. ¯c persistent vomiting: e.g. pancreatitis . Dysphagia: stricture, stroke
Features Features Wide-bore Fine-bore Stiffer Soft silicone Radio-opaque line Contains radio-opaque guide-wire to stiffen the tube Metal tip and aid insertion.
Metal Tip Method Acts as lead point to facilitate advancement of NGT Size tube by measuring from tip of pts nose to Weights the NGT down in the stomach epigastrium, going around the ear. Radio-opaque on x-ray aiding visualisation Gain consent and explain the procedure Lubricate the tip ¯c aquagel Method Insert the tube and ask pt. swallow ¯c water when they Size tube by measuring from tip of pts nose to feel it at the back of their throat. epigastrium, going around the ear. Remove guidewire and secure ¯c tape when position Gain consent and explain the procedure confirmed Lubricate the tip ¯c aquagel Insert the tube and ask pt. swallow ¯c water when they Check Location feel it at the back of their throat. Aspirate gastric contents and check pH (<4) Secure ¯c tape when position confirmed Insufflate air and auscultate for bubbling CXR: tip below diaphragm Check Location Aspirate gastric contents and check pH (<4) Complications Insufflate air and auscultate for bubbling . Best not to do this in bowel obstruction NGT CXR: tip below diaphragm Nasal trauma Malposition: airway, cranium (CI in basal skull #s) Blockage Complications Nasal trauma Feeding Malposition: airway, cranium (CI in cribriform plate #s) Refeeding syndrome Blockage Electrolyte imbalance Feed intolerance → diarrhoea Contraindication Any suspicion of basal skull # Contraindication Any suspicion of basal skull #
© Alasdair Scott, 2012 202 Types of Nutritional Supplementation Refeeding Syndrome Life-threatening metabolic complication of refeeding via Enteral Nutrition any route after a prolonged period of starvation. Oral supplements Polymeric: e.g. osmolite, jevity Pathophysiology . Intact proteins, starches and long-chain FAs ↓ carbs → catabolic state ¯c ↓insulin, fat and protein Disease Specific catabolism and depletion of intracellular PO4 . e.g. ↓ branched chain AAs in hepatic Refeeding → ↑ insulin in response to carbs and ↑ encephalopathy cellular PO4 uptake. Elemental → hypophosphataemia . Simple AAs and oligo/monosaccharides . Rhabdomyolysis . Require minimal digestion and used if abnormal . Respiratory insufficiency GIT: e.g. in Crohn’s . Arrhythmias . Shock . Seizures Parenteral Nutrition Chemistry May be “Total” or used to supplement enteral feeding ↓K, ↓Mg, ↓PO4 Combined ¯c H2O to deliver total daily requirements At-Risk Patients Malignancy Indications Anorexia nervosa Unable to swallow: e.g. oesophageal Ca Alcoholism Prolonged obstruction or ileus (>7d) GI surgery High output fistula Starvation Short bowel syndrome Severe Crohn’s Rx Severe malnutrition Identify at-risk pts in advance and liaise ¯c dietician
Parenteral and oral PO supplementation 4 Rx complications Delivery Delivered centrally as high osmolality is toxic to veins . Short-term: CV catheter . Long-term: Hickman or PICC line
Monitoring Standard . Wt., fluid balance and urine glucose daily . Zn, Mg weekly Initially . Blood glucose, FBC and U+E 3x /wk . LFTs 3x /wk Once stable . Blood glucose, FBC and U+E daily . LFTs weekly
Contents 2000Kcal: 50% fat, 50% carb 10-14g nitrogen Vitamins, minerals and trace elements
Complications Line-related . Pneumothorax / haemothorax . Cardiac arrhythmia . Line sepsis . Central venous thrombosis → PE or SVCO Feed-related . Villous atrophy of GIT . Electrolyte disturbances: e.g. refeeding syndrome . Hyperglycaemia and reactive hypoglycaemia . Vitamin and mineral deficiencies
© Alasdair Scott, 2012 203 Thromboembolic Deterrent Stockings Major Fluids
Indications Crystalloid Used to prevent VTE All patients undergoing surgery NS All immobile pts 0.9% NaCl = 9g/L 154mM NaCl Method Use: normal daily fluid requirements + replace losses Available in different sizes . Width: widest point of calf 5% Dextrose . Length: heel to buttock fold 50g dextrose /L Often used in conjunction ¯c LMWH Use: normal daily fluid requirements
Complications Dextrose-Saline 4% dextrose = 40g/L Contraindicated in pts ¯c arterial disease 0.18% NaCl = 31mM NaCl
Use: normal daily fluid requirements
Preventing DVT Hartmann’s / Ringer’s Lactate DVT is commonest complication of THR Na: 131mM Peak incidence @ 5-10d post-op Cl: 111mM K: 5mM Pre-Op Ca: 2.2mM Pre-op VTE risk assessment Lactate / HCO3: 29mM TED stockings Use: Trauma, Burns (Parkland) Aggressive optimisation: esp. hydration Stop OCP 4wks pre-op Daily Requirements . 3L dex-saline ¯c 20mM K+ in each bag Intra-Op . 1L NS + 2L dex ¯c 20mM K+ in each bag Minimise length of surgery . Each bag over 8h = 125ml/h Use minimal access surgery where possible Intermittent pneumatic compression boots Problems Give 1L NS → ~210ml remaining IV Post-Op Give 1L D5W → ~70ml remaining IV LMWH Acidosis or electrolyte disturbances Early mobilisation Fluid overload Good analgesia Physio Adequate hydration Colloid
Synthetic Gelofusin Volplex Haemaccel Voluven
Natural Albumin Blood
Use Fluid challenge Hypovolaemic shock Burns: Muir and Barclay
Problems Anaphylaxis Volume overload
© Alasdair Scott, 2012 204 General Surgery
Surgical Drains Robinson Type: closed, passive Indications Use: abdominal surgery Prophylactic . Risk of infection . Prevent fluid accumulation . Contamination: faeces or pus Therapeutic . Drainage of established collections . Drain a viscus: e.g. bladder . Collect blood for autotransfusion
Types
Open or Closed Open Redivac . e.g. corrugated rubber or plastic sheets . Fluid collects into dressing or stoma bag Type: closed, active Closed Use . e.g. chest drains, Robinson or Redivac . Breast surgery: prevent seroma or haematoma . Tube attached to a container . Thyroid surgery: risk of haematoma
Active or Passive Active: driven by suction . e.g. Redivac drain Passive: no suction, driven by pressure differential . e.g. Robinson drain
Removal Remove drain once drainage stopped or <25ml/d Perioperative bleeding and haematoma: 24-48hrs Bile Bag Intestinal anastomosis: >5d Type: closed, passive T-tube: 6-10d Use . T-tube cholangiogram first to ensure distal . NGT patency of CBD . T-tube Shortening: removal of drain by 2cm/d to allow tract to heal gradually.
Complications May ↑ risk of infection Damage may be caused by mechanical pressure or suction. May limit pt. mobility. Pemrose Drain Type: open, passive Use: abdominal surgery
Tissue Drain Type: open, passive Use: large cavities
© Alasdair Scott, 2012 205 Sutures Dever’s Retractor
Suture Types
Monofilament Advantages . ↓ risk of infection . ↓ friction in tissues Disadvantages . Harder to handle: stiff and has more memory . Knots may slip . Less tensile strength Indications Braided Surgical instrument used in open abdominal surgery to Advantages retract viscera and ↑ the field of view . Easier to handle: less memory . Knots slip less Method . Greater tensile strength Curved end inserted into abdomen and placed carefully Disadvantage to retract the viscera. . ↑ risk of infection Can be bent to a suitable shape . ↑ friction in tissues Complications Natural Damage to skin and internal structures
Absorbable Catgut / Chromic Self-Retaining Retractor Non-absorbable Silk: braided suture that may be used to secure drains
Synthetic
Absorbable
Name Material Construction Use Monocryl Poliglecaprone Mono Subcuticular skin closure Vicryl Polyglactin Braided Subcutaneous closure Bowel anastomosis PDS Polydioxanone Mono Closing abdominal wall Indications Non-Absorbable Used to retract a surgical excision and retain the incision open. Name Material Construction Use E.g. in hernia repair or and appendicectomy Prolene Polypropelene Mono Skin wounds Arterial anastomosis Complications Ethilon Nylon Mono Skin wounds Metal Steel Clips or mono Skin wounds Compression of nerves of vessels Sternotomy closure
Suture Removal Needle Holders Further away from heart = longer time Face and neck: 3-5d Scalp: 5-7d Trunk: 10d Arms: 7d Legs 10-14d Pts. ¯c poor wound healing may need longer
Needles Straight: hand-held, used for skin closure Curved: require needle-driver Indications Diameter Forceps designed to hold the needle, allowing the . Fine: GI and vascular surgery surgeon to suture accurately. . Medium: general closure . Heavy: hernia repair Tip . Blunt: abdominal wall closure Shape . J-shaped: abdominal wall closure © Alasdair Scott, 2012 206 Disposable Proctoscope Disposable Rigid Sigmoidoscope
Indications Investigation and management of pts. ¯c perianal pathology: e.g. haemorrhoids, low rectal Ca Examination of the anal canal and lower rectum ± biopsy Therapeutic: banding, sclerotherapy
Features
Obturator to aid insertion Attachment for a light source Indications
Allows endoscopic examination of the rectum and recto- Method sigmoid junction ¯c possible biopsy. Consent pt. and explain procedure. Can be used in the outpatient or inpatient setting Examine perineum and perform DRE ¯c pt. in left-lateral Investigation of position. . Rectal bleeding Lubricate scope ¯c aquagel, attach light source . Colonic Neoplasia Hold in left hand and insert into the rectum. . IBD
Complications Features Haemorrhage Graduated plastic tube ¯c an obturator to aid insertion Perforation Method For good views a suppository should be given prior to Shouldered / Gabriel Syringe examination Consent pt. and explain procedure. Examine perineum and perform DRE ¯c pt. in left-lateral position. . Ensure no obstruction to scope Lubricate scope ¯c aquagel and insert into anal canal Remove obturator Attach light source, bellows and eye piece and insufflate air Visualise mucosa as scope withdrawn
Complications Perforation . Mechanical: pushing against bowel wall . Pneumatic: over-inflation Bleeding Indications Injection of haemorrhoids with 5% phenol in almond oil PR Bleeding Differential . Sclerosant Commonest Method Perianal: haemorrhoids, fissure Consent and explain procedure to pt. Diverticular disease Pt. placed in left lateral position and syringe used ¯c Malignancy proctoscope to enable haemorrhoid visualisation 2ml of phenol is injected above dentate line: insensitive Other IBD Complications Infection Upper GI bleed Immediate Angiodysplasia Pain if injected below dentate line Damage to nearby structures Primary haemorrhage
Late Prostatitis Impotence
© Alasdair Scott, 2012 207 Laparoscopic Port Circular Bowel Stapler
Indications Access the abdomen during laparoscopic surgery E.g. lap chole
Features Trocar ± sharp blades CO2 insufflation port Instrument port with rubber flanges
Method Small incision made in the abdominal wall Either trocar used to enter abdomen or surgical entry is made Laparoscope usually inserted @ the umbilicus Abdomen inflated ¯c CO2: cheap, soluble, inert gas
Complications Visceral trauma on insertion Indications Rectal anastomosis Gastrectomy Advantages of MAS Haemorrhoids Rectal prolapse Smaller Incisions ↓ post-op pain Features ↓ risk of wound infection Anvil sutured into proximal limb ¯c purse string suture Faster post-op recovery Anvil fits into stapler and provides counterpoint for ↓ hospital stay staple insertion. Better cosmesis Complications May allow better visualisation and access Anastomotic leak Can visualise and operate on pelvic organs in lap appendicectomy. Dx and fix contralateral hernia in lap hernia repair. Checking the Integrity of an Anastomosis
Intra-operative
Fill pelvic cavity with saline Disadvantages of MAS Insufflate rectum ¯c air and look for bubbles in the saline. Different anatomy ↓ tactile feedback (can’t feel colon tumours) Post-operative 2D view of 3D structures Water-soluble contrast enema Technically challenging and old skills may be lost Complications (e.g. haemorrhage) may be harder to Mx Expensive
© Alasdair Scott, 2012 208 Urology
General Catheterisation Indications Mx of Non-draining catheter Bypassing catheter: consider condom catheter Diagnostic Blocked: flush ¯c 20ml sterile 0.9% NS or consider 3- Measure urine output way Sterile urine sample Slipped into prostatic urethra: flushes but won’t drain Renal tract imaging Catheter has perforated the lower tract on insertion and is not in the bladder Therapeutic Renal or pre-renal failure Urinary retention Immobile patients Bladder irrigation TWOC Intermittent decompression of neuropathic bladder After 24-72 hrs in AUR May be performed as a urology outpt. if retention likely. Tamsulosin ↓s risk of retention after TWOC Foley Catheter
Features Indications for Long-Term Catheterisation One port for drainage and one to fill the distal balloon ¯c Chronic bladder outlet obstruction sterile water. Neurogenic bladder ¯c chronic retention Distal balloon sits in the bladder and prevents Complications of incontinence displacement of the catheter. . Refractory skin breakdown Material . Palliative care . Usually latex . Pt. preference . Silastic better for long-term placement ↓ blockage and ↓ infection Clean Intermittent Self-Catheterisation Method Alternative to indwelling catheter in CUR Consent and explain the procedure to the patient. Also useful in pts. who fail to void after TURP Use smallest diameter possible to achieve adequate drainage Indications . French = circumference of catheter in mm Chronic retention . Male: 16-18F Neuropathic bladder . Female: 12-14F . MS Clean perineal area . DM neuropathy Use ANTT and insert the catheter ¯c the aid of instilagel . Spinal trauma Ensure that urine is draining before inflating the balloon (10ml of water) Replace foreskin to prevent paraphimosis May give a STAT dose of Gentamicin IV to prevent transient bacteraemia.
Complications Early . Creation of false tract . Urethral rupture . Paraphimosis . Haematuria Delayed . Infection . Blockage
Contraindications Urethral trauma . Blood @ urethral meatus . High-riding prostate . Scrotal haematoma . Pelvic fracture
Other Catheter Types Coude catheter: angled tip may help in big prostates Condom catheter
© Alasdair Scott, 2012 209 3-Way Irrigation Foley Catheter Acute Urinary Retention (AUR)
Indication Clinical Features Irrigate bladder in pts @ risk of clot retention Suprapubic tenderness E.g. after TURP or in pts ¯c haematuria Palpable bladder . Dull to percussion Features . Can’t get beneath it 3 ports Large prostate on PR . Balloon inflation . Check anal tone and sacral sensation . Drainage (middle) <1L drained on catheterisation . Irrigation Ix Blood: FBC, U+E, PSA (prior to PR) Suprapubic Catheter Urine: dip, MC+S Imaging
. US: bladder volume, hydronephrosis . Pelvic XR
Mx
Conservative Analgesia Privacy Walking Running water or hot bath
Indications Catheterise Urethral injuries Use correct catheter: e.g. 3-way if clots Urethral obstruction STAT gent cover . BPH Hrly UO + replace: post-obstruction diuresis . Ca prostate Tamsulosin: ↓ risk of recatheterisation after retention TWOC after 24-72h Method . May d/c and f/up in OPD US guided insertion of catheter under LA . More likely to be successful if predisposing factor Trocar inserted into catheter and unit advanced through and lower residual volume (<1L) skin. TURP Complications Failed TWOC Viscus perforation Impaired renal function Haemorrhage Elective Malignancy seeding
Advantages ↓ UTIs ↓ stricture formation TWOC w/o catheter removal Pt. preference: ↑ comfort Maintain sexual function
Disadvantages More complex: need skills Serious complications can occur
CI Known or suspected bladder carcinoma Undiagnosed haematuria Previous lower abdominal surgery . → adhesion of small bowel to abdo wall
© Alasdair Scott, 2012 210 JJ or Ureteric Stent
Indication Relieve ureteric obstruction . Stones . Tumours May be inserted intra-op during renal Tx
Method Retrograde: cystoscopic guidance Anterograde: percutaneous
Complications Infection Blockage Displacement / migration
© Alasdair Scott, 2012 211 Trauma and Orthopaedics
Chest Drain Tube and Trocar Chest Drain Bottle
Indications Indications Drainage of the pleural cavities As for chest drain tube PTX . Traumatic Method . Ventilated Fill bottle to prime level ¯c sterile water . Following needle decompression of tension Connect to drain to bottle . Persistent after aspiration Underwater seal allows one-way flow out of pleural Pleural effusion: malignant, pus, blood, lymph cavity Post-op: thoracotomy, post-oesophagectomy May add suction → active drainage
Method Complications Consent and explain procedure to pt. Lifting the bottle above the pt can → retrograde flow Commonly insert smaller drains ¯c Seldinger technique into chest. Morphine analgesia Complications of chest tube insertion Clean and drape area ID safe triangle: 4th-6th ICS, just anterior to mid-axillary line, posterior to pectoralis major muscle. Infiltrate 1% lignocaine to rib below and pleura of ICS. Check that air or fluid can be aspirated. Make small 1cm incision just above rib below, blunt dissect ¯c Spencer-Wells down to pleura, sweep finger to clear adhesions and check location. Attach drain to bottle and advance it into pleural cavity, directing it postero-inferiorly. Close wound and ICD using modified mattress suture. Get patient to cough and take deep breaths, check for swinging and bubbling. CXR to check location.
Complications
Early Pain due to inadequate analgesia Haemorrhage due to NV bundle damage Organ perforation Incorrect location: e.g. abdomen
Late Failure: bronchopleural fistula Long-thoracic N. damage → winged scapula Wound infection Blockage
Removal Remove when no longer swinging or bubbling and CXR confirms resolution of PTX Using two people, remove in forced expiration and use mattress suture to close wound. CXR to check no new PTX.
© Alasdair Scott, 2012 212 Fracture Plate Hemi-Arthroplasty Prosthesis: Austin Moore
Indications Internal fixation of fractures This particular type can be used to fix tibial #s
Method Indications Requires open reduction Intracapsular # NOF: Garden 3/4 Plate aligned with orientation of bone Screws used to fix plate to bone Features Fenestrated stem for osseous integration Complications . Non-cemented Relate to #, procedure and the plate Shouldered Large head The Plate Infection Method Failure Placed in theatre under GA Malposition of the remodelled fracture Posterior or anterolateral (commonest) approaches Head of femur resected femoral shaft reamed Other Types of Fixation Stem is cemented (Thompson) or uncemented (Austin POP Moore) Continuous traction: collar and cuff Head relocated and joint function and stability assessed External fixation before closure. Intramedullary nail K wires DHS Complications of the Prosthesis Cannulated screws Complications involve the fracture, the procedure and the prosthesis.
Early Cement reaction Deep infection Fracture Dislocation (3%): squatting and adduction
Late Loosening: septic or aseptic Failure: stem # Revision: most replacements last 10-15yrs
© Alasdair Scott, 2012 213 Total Arthroplasty Prosthesis Intramedullary Nail
Indications OA hip Indications Form of internal fixation used in the Mx of long-bone #s Features . Femur, tibia, humerus Femoral component with small head Polyethylene acetabular component Features Most are cemented Titanium or titanium alloy Screws insert proximally and distally provide rotational Method and longitudinal stability Placed in theatre under GA Curve fits contour of tibia Posterior or anterolateral (commonest) approaches Head of femur resected Dynamisation Acetabulum and femoral shaft are reamed Removal of one or more screws in order to allow Stems and cups are trialled to find most suitable collapse Head relocated and joint function and stability assessed . ↑ loading of fracture site → quicker union before closure. Method Complications of the Procedure and Prosthesis Inserted under GA Nail hammered into medulla of bone Immediate Screws lock nail in place Nerve injury Fracture Complications of the Prosthesis Cement reaction Fracture during nail insertion Infection Early Fat embolus DVT: up to 50% w/o prophylaxis Delayed or non-union Deep infection Must remove metalwork before revision. Dislocation (3%): squatting and adduction Fat Embolism Syndrome Presentation: SOB, petechial rash, confusion Late . Typically 24-72h between injury and onset Loosening: septic or aseptic . Resp: dyspnoea ± chest pain Failure: stem #, wear . Petechial rash: upper anterior trunk, arms, neck Revision: most replacements last 10-15yrs . CNS: headache, confusion, agitation . Renal: oliguria, haematuria Ix . ABG: hypoxia, hypocapnoea . FBC: ↓ plats, ↓Hb . CT chest Mx . Supportive: O2, volume resuscitation . Steroids
© Alasdair Scott, 2012 214 Stiff Neck Collar Mannitol
Indications Indications Stabilise the cervical spine in trauma pts. Osmotic diuretic Used ¯c two sandbags and tape Lower intracranial pressure ↓ IOP in hyphema Features Comes flat packed and must be assembled Method Hole at front allows access to the trachea Given centrally
Method Complications Sized by measuring the number of fingers from the May ↑ ICP in the long-term clavicle to the angle of the mandible CI in severe cardiac failure and pulmonary oedema “Key dimension” then compared to the sizing peg on the hard collar.
Complications Incorrect placement . Neck not in neutral alignment . Chin not flush ¯c end of chin piece
Clearing the C-Spine
Clinical Clearance Indication: NEXUS Criteria . Neurological deficit . Spinal tenderness in the midline . Altered consciousness . Intoxication . Distracting injury Method . Examine for bruising or deformity . Palpate for deformity and tenderness . Ensure pain-free active movement
Radiological Clearance Indications . Pt. doesn’t meet criteria for clinical clearance Modalities . Radiograph initially Clear if normal radiograph and clinical exam . CT C-spine if abnormal radiograph or clinical exam
© Alasdair Scott, 2012 215 Miscellaneous
Swan Ganz Catheter Tru-Cut Biopsy Needle
Indications Indications Flow directed pulmonary artery catheter Used to take histological specimens from lesions Measure the pulmonary capillary wedge pressure . Part of triple assessment of breast lumps . Indirect measure of LA filling pressure . Liver Measure cardiac output . Kidney Used in cardiogenic or septic shock when accurate . Prostate: transrectally haemodynamic data is required Its use has not been shown to improve outcome Method Consent and explain procedure to pt. Method Anaesthetise area ¯c LA Used in the intensive care setting Needle advanced under US guidance Inserted into a central vein. Spring handle is pressed, advancing the specimen tray into the target lesion Further pressure fires the surrounding sheath, obtaining a biopsy Fogarty Embolectomy Catheter Complications Bleeding Pain Cancer seeding
Renal Biopsy
Indications Unexplained ARF/CRF Acute nephritic syndrome Unexplained proteinuria / haematuria Systemic disease ¯c renal involvement (e.g. SLE) Indication O Suspected Tx rejection Mx of acutely ischaemic limb 2 to embolus CI Method Abnormal clotting Vascular access gained to femoral artery @ groin. Single kidney (except Tx) Catheter passed distal to embolus Small kidneys from CRF (↑ bleeding risk + too late) Balloon is inflated and catheter withdrawn. Renal neoplasms
Procedure Stop aspirin (1wk) and warfarin (2d) in advance Check FBC, clotting and G&S US-guided Tru-Cut needle biopsy
Complications Macroscopic haematuria in 1% Transfusion needed in 0.1%
© Alasdair Scott, 2012 216 Key Anatomy
Contents Chest Wall ...... 218 Thoracic Cavity ...... 219 Inguinal Region ...... 220 Abdominal Wall and Surface Anatomy ...... 221 The Bowel ...... 222 Abdomen Neurovascular Supply ...... 223 Gastrointestinal Adnexae ...... 223 Urinary Tract ...... 224 Head and Neck ...... 225 The Thigh ...... 226 The Leg ...... 227 The Arm ...... 228
© Alasdair Scott, 2012 217 Chest Wall
Surface Landmarks Breast Superior angle of scapula : T2 Mammary glands and connective tissue stroma Inferior angle of scapula: T8 Anterior to ribs 2–6 and extend superolaterally to the Sternal angle: T4/5 mid-axillary line. Subcostal plane: L3 Nipples: 4th ICS Mammary glands Ducts and secretory lobules converge to form 15-20 lactiferous ducts which each open onto the nipple. Surface Markings Connective tissue Pleura: 8th, 10th and 12th ribs Surrounds mammary glands Lung: 6th, 8th and 10th ribs Suspensory lgts. (of Cooper) are continuous with the
dermis and support the breast. Oblique fissure Layer of loose connective tissue (retromammary space) T4 in midline posteriorly separates the breast from the deep fascia and allows 5th rib laterally th some movement over the underlying structures. 6 costal cartilage anteriorly Arterial Supply Horizontal fissure th Laterally: vessels from the axillary artery Follows contour of 4 rib anteriorly Medially: branches from the internal thoracic artery nd th 2 – 4 intercostals via superficial perforating branches The Breast
Attached between rib 2-6 Lymphatic Drainage Axillary tail follows lower margin of pec major 75% drain superolaterally into axillary nodes
Remainder into deep parasternal nodes
Thoracic Plane: T4/5 – Sternal Angle Aortic arch: beginning and end SVC enters the RA Bifurcation of the pulmonary arterial trunk Carina 2nd costosternal joint Division of superior and inferior mediastinum
© Alasdair Scott, 2012 218 Thoracic Cavity
The Diaphragm Recurrent Laryngeal Nerve 3 main openings RLN supplies all intrinsic laryngeal muscles except . Aortic hiatus: T12 cricothyroid (external branch of sup. laryngeal N.) . Oesophagus: T10 Left nerve recurs around the ligamentum arteriosum . Vena Cava: T8 (remnant of ductus arteriosum) Congenital hernia Right nerve recurs around right subclavian artery . Morgagni: anterior Damage may occur during thyroid or parathyroid surgery . Bochdalek: posterior or due to bronchogenic Ca Unilateral palsy → hoarseness (bilat → aphonia)
Superior Mediastinum Chylothorax Thoracic duct drains whole lymphatic field below Boundaries diaphragm and left half of lymphatics above it. Sup: thoracic inlet Surgical procedures involving the posterior mediastinum Inf: angle of Louis: T4/5 (Thoracic Plane) or neck can → lymph leak into thoracic cavity. Lat: pleura Ant: manubrium Venous System at the Thoracic Outlet Post: T1-4 Subclavian veins join internal jugular veins behind SCJs Brachiocephalic veins form SVC behind right 1st Contents sternocostal joint. Arteries: aortic arch and branches SVC enters RA @ right 3rd sternocostal joint Veins: brachiocephalics, SVC Nerves: vagi, phrenics, L recurrent laryngeal Oesophagus Organs: thymus, trachea, oesophagus, thoracic duct, 25cm long muscular tube (40cm from GOJ → lips) LNs Path Anterior Mediastinum Starts at level of cricoid cartilage (C6) Anterior to pericardium Lies in the visceral column in the neck Thymus and LNs Runs in posterior mediastinum and passes through right crus of diaphragm @ T10. Posterior Mediastinum Continues for 2-3cm before entering the cardia Descending aorta Azygous vein and hemiazygous 4 locations of narrowing Thoracic duct Level of cricoid: junction ¯c pharynx Esophagus Posterior to aortic arch Sympathetic trunks Posterior to left main bronchus LOS
Histology Divided into 3rds: reflects change in musculature from striated → mixed → smooth. Lined by non-keratinising squamous epithelium. Z-line: transition from squamous → gastric columnar
Gastro-oesophageal Sphincter 3 main components to prevent reflux LOS: 4cm long hypertrophied smooth muscle Extrinsic Sphincter: skeletal muscle of R crus of diaphragm Physiologic sphincter . Distal component projects into abdominal cavity and ↑ IAP → compression . Angle of His also forms valve preventing reflux.
© Alasdair Scott, 2012 219 Inguinal Region Deep Ring 1.5cm above femoral pulse, or Mid-point of inguinal ligament (ASIS → PT)
Superficial Ring Split in external oblique aponeurosis just superior and medial to the pubic tubercle.
Inguinal canal 4cm long Floor: inguinal ligament Roof: arching fibres of internal oblique and transversus abdominis Anterior: external oblique aponeurosis + internal oblique for lateral 3rd Posterior: transversalis fascia + conjoint tendon for medial 3rd Laterally: deep ring Medially: pubic tubercle
Conjoint tendon: combined insertion of internal oblique and transversus abdominis into pubic crest and pectineal line
Contents M: ilioinguinal N. + spermatic cord F: ilioinguinal N. + genital branch of genitofemoral N. + round lig. of uterus
Ilioinguinal N. (L1) Enters canal directly through anterior wall: does not pass through the deep ring Exits through the superficial ring Supplies skin at the root of the penis and the scrotum (or the labia majus) and small area of skin of upper inner thigh.
Genital branch of the genitofemoral N. (L1/2) Supplies cremaster muscle and scrotal skin or the labia majus.
Spermatic Cord Femoral Sheath 3 layers of fascia In femoral triangle, femoral artery, vein and lymphatics . External spermatic: from external oblique are enclosed w/I femoral sheath. . Cremasteric: from internal oblique Sheath continuous superiorly ¯c transversalis fascia . Internal spermatic: from transversalis fascia Each structure has its own compartment 3 arteries Most medial compartment = femoral canal . Testicular: from aorta . Ant: inguinal ligament . Cremasteric: from inf. epigastric . Post: pectineal lig (lig. of Cooper) + pectineus . Artery of the vas: from inf. vesicular A. . Med: lacunar lig. and pubic bone 3 veins . Lat: femoral vein . Pampiniform plexus (R→IVC, L→ Left renal) . Contents: fat and Cloquet’s node . Cremasteric vein . Vein of the vas 2 nerves . Nerve to cremaster: from genito-femoral N. . Sympathetic fibres from T10-11 . (Ilioinguinal N. is on the cord) 3 other structures . The vas deferens . Lymphatics of the testis (→para-aortic nodes) . Obliterated processus vaginalis
Operative Anatomy Inferior epigastric vessels Arise from external iliac vessels immediately superior to inguinal ligament. Can be seen passing deep to the posterior wall (transversalis fascia) Sac arises lateral to vessels = indirect hernia Sac arises medial to vessels = direct hernia
Hesselbach’s triangle Area of entry for direct hernias through posterior wall Laterally: inf. epigastric artery Medially: rectus abdominis muscle Inferiorly: inguinal ligament © Alasdair Scott, 2012 220 Abdominal Wall and Surface Anatomy
Abdominal Wall Surface Anatomy
Layers L1: Transpyloric Plane of Addison Skin Midway between jugular notch and pubic symphysis Camper’s fascia: fatty 9th costal cartilage Scarpa’s fascia: membranous Pyloric orifice and D1 External oblique DJ flexure Internal oblique Fundus of the gallbladder (nerves and vessels) Left and right colic flexures Transversus abdominis Neck of the pancreas Transversalis fascia Lower part of left renal hilum, upper part of right Pre-peritoneal fat Origin of the SMA and coeliac trunk Parietal peritoneum L3: Subcostal Plane Innervation Joins lowest points of the 10th ribs Intercostal nerves: T7-T11 Origin of IMA Subcostal nerve: T12 Ilio-inguinal and ilio-hypogastric nerves: L1 L4: Intercristal Plane Joins the highest points of the iliac crests Blood Supply Bifurcation of the aorta Superiorly . Superficial: musculophrenic A . Deep: superior epigastric A. Surface Markings Both terminal branches of int. thoracic A. Inferiorly Umbilicus . Superficial: superficial epigastric + superficial Inconsistent position circumflex iliac As.: branches of the femoral A. Normally L3/L4 disc . Deep: Inf. epigastric + deep circumflex iliac As.: branches of the external iliac A. Liver Upper border at the level of the fifth ICS on each side Rectus Sheath Lower border from tip of 10th rib on right to just medial Arcuate line of Douglas: midway between umbilicus and to mid clavicular line in the left 5th ICS pubic symphysis Above the arcuate line the sheath completely encloses Gallbladder the rectus muscle. Where the mid clavicular line meets the right costal Below the arcuate line the sheath is deficient posteriorly margin: 9th costal cartilage and the rectus is in direct contact ¯c transversalis fascia. This arrangement allows expansion of pelvic contents Spleen into the abdomen. Underlies ribs 9-11 on the left. Semilunar lines: aponeurosis of ext. oblique at its line of division to enclose the rectus.
© Alasdair Scott, 2012 221 The Bowel
Duodenum Distinguishing Features of Large Bowel 4 parts Large diameter Mostly retroperitoneal Condensation of longitudinal muscle → taenia coli Epiploic appendages D1 Sacculations / Haustra Duodenal cap Commonest place for DUs Rectum Overlapped by gallbladder 12cm . Stones can erode into D1 → ileus Sacral promontory to levator ani muscle
The 3 tenia coli fuse around the rectum to form a D2 continuous muscle layer. Descending part Contains Major Duodenal Papilla (mid → hind gut) Anal Canal D3 4cm Inferior part Levator ani muscle to anal verge Can be compressed by SMA aneurysm Upper 2/3 of canal . Lined by columnar epithelium D4 . Insensate Ascending part . Sup. rectal artery and vein Ends at DJ flexure / Ligament of Trietz . Internal iliac nodes Distal 1/3 of canal PUD Perforation . Lined by squamous epithelium . Sensate Posterior DU can erode into GDA → massive . Middle and inf. rectal arteries and veins haematemesis . Superficial inguinal nodes Anterior DU → pneumoperitoneum and peritonitis Dentate line = squamomucosal junction
White line = where anal canal becomes true skin Jejunum Proximal 2/5 Larger diameter + thicker wall Anal Sphincters Less prominent arcades Longer vasa recta Internal Thickening of rectal smooth muscle Ileum Involuntary control Distal 3/5 Narrower diameter + thinner wall External More prominent arcades Three rings of skeletal muscle Shorter vasa recta . Deep . Superficial Appendix . Subcutaneous Base is consistently found @ confluence of the caecal Voluntary control taenia coli Position of rest of appendix is highly variable Anorectal Ring . Retro-caecal: 75% Deep segment of external sphincter which is . Sub-caecal and pelvic: 20% continuous ¯c puboretalis muscle (part of levator ani) . Retro- or pre-ileal: 5% Palpable on PR ~5cm from the anus Appendicular artery runs in the mesoappendix and is a Demarcates junction between anal canal and rectum. branch of the ileocolic artery. Must be preserved to maintain continence
Appendicitis Pain Common Areas for Collections Initially visceral pain carried by sympathetic afferents in the Subphrenic recess lesser splanchnic nerve which refers to T10 dermatome Hepatorenal recess: Morrison’s pouch Later peritonitis → somatic pain and localisation to RIF. Lesser sac Paracolic gutters Meckel’s Diverticulum Small bowel (interloop spaces) Ileal remnant of vitellointestinal duct Pelvis: Pouch of Douglas . Joins yoke sac to midgut lumen A true diverticulum 2 inches long 2 ft from ileocaecal valve on antimesenteric border 2% of population 2% symptomatic: PR bleed, diverticulitis, intussusception Contain ectopic gastric or pancreatic tissue
© Alasdair Scott, 2012 222 Abdomen Neurovascular Supply Gastrointestinal Adnexae
Arteries Liver Functionally divided by line through gallbladder fossa L1: Coeliac Trunk and IVC. Left gastric Split into 8 Couinaud segments Common hepatic . 4 on Right Splenic . 3 on Left . Caudate lobe is functionally distinct L1: SMA Inf. pancreaticoduodenal Ileal and jejunal vessels Gallbladder Middle colic Stores and concentrates ~50ml of bile Right colic Supplied by cystic artery but also receives rich supply Ileocolic from the gallbladder bed: gangrene is rare
L1: Renal Vessels Calot’s Triangle Sup: inferior edge of liver L3: IMA Med: CHD and RHD Left colic Inf: cystic duct Sigmoidal branches Contains Superior rectal artery . Cystic artery . Calot’s/Lund’s node Marginal Artery of Drummond . Aberrant RHA Anastomotic artery between middle colic and ascending branch of left colic May maintain hind-gut blood supply even when IMA stenosed.
Nerves
Sympathetic Thoracic an d lumbar splanchnic nerves
Parasympathetic Vagus nerve Pelvic splanchnic nerves
Splanchnic Nerves Greater Splanchnic Nerve (T5-T10): foregut Lesser Splanchnic Nerve (T10-T11): midgut Least Splanchnic Nerve (T12): kidneys Lumbar Splanchnic Nerve (L1-L2): hindgut
Enteric NS Independent of CNS but does receive some sympathetic and parasympathetic input. Two layers . Myenteric plexus of Auerbach . Submucosal plexus of Meisner
Lymphatics Follow arteries Para-aortic nodes associated ¯c each major branch Drain superiorly to cisterna chyli → thoracic duct
© Alasdair Scott, 2012 223 Urinary Tract
Ureter Course 25cm long Start at renal pelvis: L1 on left, slightly lower on right Runs inferiorly on the psoas muscle anterior to the tips of the transverse processes of the lumbar vertebrae Cross sacroiliac joints passing anterior to iliac bifurcation Pass posteriorly to the ischial spines then anteriorly to the bladder.
Ureteric Narrowings Pelviureteric junction Crossing the iliac vessels at the pelvic brim Vesicoureteric junction
Male Urethra 20cm long 4 main parts . Pre-prostatic: internal urethral sphincter . Prostatic Openings of ejaculatory ducts Widest part . Membranous External urethral sphincter Narrowest part . Spongy: longest part (for most)
Coverings of the Vas Deferens in the Scrotum Skin Superficial scrotal fascia (Dartos fascia) External spermatic fascia Cremasteric fascia Internal spermatic fascia Pre-peritoneal fat Tunica vaginalis Vas
© Alasdair Scott, 2012 224 Head and Neck
Neck Fascia Branches of the External Carotid Artery Superior thyroid Superficial: platysma Ascending pharyngeal Lingual Investing Facial Completely surrounds neck Occipital Encloses SCM and trapezius Posterior auricular Superficial temporal Pre-vertebral Maxillary Surrounds vertebral column and associated muscles
Pre-tracheal Facial Nerve Surrounds trachea, oesophagus and thyroid Arises in medulla and emerges between pons and medulla to travel in the internal auditory canal. Carotid Sheath Exits the internal auditory canal and forms the geniculate Surrounds internal carotid, internal jugular + CNX ganglion in the middle ear Traverses the length of the temporal bone, giving off 3 Thyroid Gland branches Lies over 3rd-4th tracheal cartilages . Greater superficial petrosal N.: lacrimation Invested in pretracheal fascia . Nerve to stapedius: lesions → hyperacusis Strap muscles lie anterior . Chorda tympani: anterior 2/3 taste Parathyroid glands posteriorly Exists temporal bone via stylomastoid foramen and runs 2 arteries into parotid gland. . Sup. thyroid (ECA) Gives off nerves to post. belly of digastric and stylohyoid . Inf. thyroid (thyrocervical trunk) Divides into 5 motor branches 3 veins: sup, middle and inf. thyroid veins . Temporal . Zygomatic Larynx . Buccal . Mandibular Innervation . Cervical Motor Upper motor neurone lesions spare the forehead as . Recurrent laryngeal N. supplies all intrinsic suprapontine crossover → bilateral representation muscles except cricothyroid . External branch of superior laryngeal N. supplies cricothyroid. Sensory . Int. branch of superior laryngeal N.: above folds . Recurrent laryngeal N.: below folds
Semon’s Law Transection of RLN . → complete paralysis ¯c cords half aducted / abducted . Cannot speak or cough Trauma but not transection of RLN . → partial paralysis ¯c cords adducted . Cannot breath if bilateral
Triangles of the Neck
Anterior Ant. margin of SCM Midline Ramus of the mandible Roof: investing fascia
Submandibular Mental process Ramus of the mandible Line between two angles of the mandible
Posterior Post. margin of SCM Ant. margin of trapezius Mid 1/3 of clavicle © Alasdair Scott, 2012 225 The Thigh
Hip Joint
Structure Ball and socket synovial joint between the head of the femur and the lunate surface of the acetabulum. Lgt. teres connects fovea on femoral head to acetabular fossa and transmits the artery lgt. teres (from obturator A.). Fibrous capsule composed of three lgts (ilio-, ischio and pubofemoral lgts.) and extends from margin of acetabulum to intertrochanteric line of the femur.
Muscles
Movement Flexion Extension Adduction Abduction Int. rotation Ext. rotation Segment L2/3 L4/5 L2/3 L4/5 L2/3 L5/S1 Nerve Femoral Inf. gluteal Obturator Sup. gluteal Obturator Various Muscles Iliopsoas Gluteus maximus Adductors Gluteus minimus Adductors Short ext. rotators Rectus femoris Gluteus medius Gluteus maximus Sartorius
Blood Supply to the femoral head 1. Intramedullary vessels 2. Retinacular vessels from the medial and lateral circumflex femoral arterie . Distal → proximal in the capsule. 3. Artery of the ligamentum teres from the obturator artery (only contributes in children)
Femoral Triangle: SAIL Anterior Compartment of the Thigh Lateral: medial margin of Sartorius Medial: medial margin of Adductor longus Function Base: Inguinal Ligament Flex the hip: L2-3 Floor: pectineus and adductor longus Extend the knee: L3-4 Apex: continuous ¯c Hunter’s canal Contents: femoral N., A., V. and canal Nerve Femoral N.: L2-L4
Hunter’s (Adductor) Canal Muscles Iliopsoas Anterolateral: vastus medialis Sartorius: ASIS → pes anserinus Posterior: adductor longus and magnus Rectus femoris: AIIS → patellar lgt. Roof and medially: Sartorius Vastus muscles Contents: SFA, femoral V., saphenous nerve
Medial Compartment of the Thigh Gluteal Region Function
Muscles Adduct and externally rotate the hip: L2-3
Abductors: superior gluteal N. Nerve . Gluteus medius . Gluteus minimus Obturator N.: L2-L4
Extensor: inferior gluteal N. Muscles . Gluteus maximus Pectineus (femoral N.) Short external rotators . Piriformis Adductor brevis, longus and magnus . Obturator internus Gracilis . Quadratus femoris Obturator externus . Gemelli: inf. + sup. Posterior Compartment of the Thigh Sciatic N.: L4-S3 Enters via greater sciatic foramen below piriformis Function Found in lower medial quadrant of gluteal region Extend the hip: L4-5 Motor Flex the knee: L5-S1 . Hamstrings . Hamstring part of adductor magnus Nerve . Muscles of leg and foot Tibial division of sciatic.: L4-S3 Sensory . Lateral leg and foot Muscles . Sole and dorsum of foot Biceps femoris Semitendinosus Semimembranosus © Alasdair Scott, 2012 226 The Leg
The Knee Joint Posterior Compartment of the Leg
Structure Function Weight-bearing articulation between femur and tibia Plantarflexion of the foot: S1-2 Articulation between patella and femur Flex the toes and invert the foot . ↓ tendon wear . ↑ moment around knee joint. Nerve Tibial nerve Menisci 2 fibrocartilaginous menisci Muscles Medial meniscus attached at its margin to medial Superficial collateral lgt. . Gastrocnemius . Plantaris Bursae . Soleus Suprapatellar bursa: continuous ¯c joint capsule Deep Subcutaneous prepatellar bursa . Popliteus . Can → housemaids knee . FHL Deep and superficial infrapatallar bursae . FDL . Tibialis posterior (L5) Ligaments Patellar lgt.: inf. patella to tibial tuberosity Collaterals: medial and lateral Lateral Compartment of Leg Anterior cruciate . Prevents anterior displacement of the tibia Function relative to the femur Evert the foot: S1 Posterior cruciate . Prevents posterior displacement of the tibia Nerve relative to the femur Superficial fibular N.
Muscles Muscles Fibularis longus Movement Flexion Extension Fibularis brevis Segment L5/S1 L3/4 Nerve Sciatic (Tibial) Femoral Muscles Hamstrings Quads Anterior Compartment of Leg - biceps femoris - Vastus muscles - semimem - Rectus femoris Function - semiten Dorsiflexion of the foot: L5-S1 Sartorius ( fem) Extension of the toes and eversion of the foot: S1
Nerve Popliteal Fossa Deep fibular N. nd Superior . Supplies skin between great and 2 toe . Medial: semitendinosus and semimembranosus . Lateral: biceps femoris Muscles Inferior Tibialis anterior . Medial: medial head of gastrocnemius EHL . Lateral: lateral head of gastrocnemius + plantaris EDL Floor: capsule of knee joint Fibularis tertius Roof: deep fascia (continuous ¯c fascia lata)
Contents Popliteal artery and vein Tibial nerve Common fibular nerve
Blood Supply Popliteal artery → anterior + posterior tibial arteries Anterior tibial . Supplies anterior compartment of leg . Palpable as dorsalis pedis A. Posterior tibial . Supplies posterior compartment of leg . Gives rise to fibular A. (supplies lat compartment) . Palpable behind the medial malleolus © Alasdair Scott, 2012 227 The Arm
Brachial Plexus Anatomical Snuff Box C5-T1 Lateral: APL and EPB Roots leave vertebral column between scalenus Medial: EPL anterior and medius. Proximal: radial styloid process Divisions occur under the clavicle, medial to coracoid Floor: scaphoid and trapezium process. Contents: radial artery, cephalic vein, dorsal cutaneous Plexus has intimate relationship ¯c subclavian and branch of radial nerve. brachial arteries. Median N. is formed anterior to brachial artery. Carpal Tunnel C5 Carpal tunnel formed by flexor retinaculum and carpal Lat MC bones. Contains C6 . 4 tendons of FDS Post Axillary C7 Median . 4 tendons of FDP Radial . 1 tendon of FPL C8 . Median N. Med Ulnar Median N. supplies LLOAF (aBductor pollicis brevis) Palmer cutaneous branch travels superficial to flexor T1 retinaculum → spares sensation over thenar area. Roots (5) Divisions (6) Trunks (3) Cords (3)
Anterior Compartment of the Arm Function: forearm flexion (C5-6) Nerve: musculocutaneous Muscles . Biceps brachii . Coracobrachialis . Brachialis
Posterior Compartment of the Arm Function: forearm extension (C7) Nerve: radial Muscle: triceps
Antecubital Fossa Superficial: median cubital vein Deep . Radial nerve . Brachial artery . Median nerve
Anterior Compartment of the Forearm Function: wrist and finger flexion (C7-8) Nerve: mostly median N. Muscles . Superficial Pronator teres FCR Palmaris longus FDS FCU (ulnar N.) . Deep FDP (ulnar and median Ns.) FPL Pronator quadratus
© Alasdair Scott, 2012 228