DOCSLIB.ORG

Approach to Persistent Microscopic Hematuria in Children

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Approach to Persistent Microscopic Hematuria in Children Review Article Approach to Persistent Microscopic Hematuria in Children Mahmoud Kallash1 and Michelle N. Rheault 2 Abstract Persistent isolated microscopic hematuria is relatively common in pediatric practice, affecting around 0.25% of children. Isolated microscopic hematuria can be caused by a myriad of potentially benign or serious causes, including urologic issues; kidney stones; glomerular diseases, including disorders of the glomerular basement membrane; hematologic abnormalities; and others. The challenge for the pediatrician or pediatric nephrologist is to distinguish children with potentially progressive forms of kidney disease versus other causes while minimizing cost and inconvenience for the child and family. This manuscript will review the multiple potential causes of microscopic hematuria and provide a framework for the initial evaluation and monitoring of such patients. KIDNEY360 1: 1014–1020, 2020. doi: https://doi.org/10.34067/KID.0003222020 Introduction longer than 6 months identified normal findings in Microscopic hematuria is common in children, and it is 44%, thin GBMs in 22%, Alport syndrome in 12%, and present in 4.1% of school age children (1). Microscopic IgA nephropathy (IgAN) in 11% (4). In contrast, a sim- hematuria that persists on repeated evaluations is less ilar study in China demonstrated normal findings in common, with only 0.25% of children having blood 71%, thin GBMs in 3.2%, Alport syndrome in 1.4%, and in four consecutive urinalyses (UAs) (1). Of children IgAN in 16%, suggesting that practice and referral with microscopic hematuria, only 16.2% of them also patterns or race/ethnicity may influence findings (5). had proteinuria; thus, the majority of children identi- The challenge for the pediatrician or pediatric nephrol- fied with hematuria have isolated hematuria (1). A ogist evaluating the child with persistent microscopic study of 1.2 million adolescents and young adults hematuria is to distinguish between children with assessed at the time of Israeli army entrance found potentially progressive forms of kidney disease versus microscopic hematuria in 0.3% of patients (2). Impor- other causes while minimizing cost and inconvenience tantly, the presence of microscopic hematuria was for the child and family. This manuscript will review not a universally benign finding. The adjusted hazard the multiple potential causes of isolated microscopic ratio for ESKD in the patients with microscopic hema- hematuria and provide a framework for the initial turia over 20 years of follow-up was 18.5 (95% confi- evaluation and monitoring of such patients. The pres- dence interval, 12.4 to 27.6), although absolute risk ence of albuminuria along with microscopic hematuria remained low. is generally suggestive of kidney parenchymal disease Although routine screening UAs are not recommen- that may require more urgent diagnosis or treatment. ded for healthy, asymptomatic children in the United The evaluation of children with hematuria and albu- States, UAs are often obtained in pediatric practice due minuria is not covered in this manuscript. to symptoms of increased frequency of urination, dys- uria, or fever with microscopic hematuria present as an incidental finding. Screening UAs are recommended Urologic Causes for children who are at higher risk for CKD, such as Hematuria with pyuria is often found in the setting those with a history of AKI, congenital anomalies of the of urinary tract infection in children. It can be seen with kidney and urinary tract, acute nephritis, hyperten- cystitis or acute pyelonephritis and can be microscopic sion, active systemic disease, prematurity, intrauterine or macroscopic in nature. When indicated clinically, growth retardation, or a family history of kidney UA should be obtained to evaluate for the presence of disease (3). pyuria and/or bacteriuria, and infection should be Isolated microscopic hematuria can be caused by confirmed with a urine culture before initiating anti- a myriad of potentially benign or serious causes, in- biotics (6). Viral urinary tract infections may also be cluding urologic issues; kidney stones; glomerular dis- a cause of hematuria, including adenovirus and BK eases including disorders of the glomerular basement virus infections, particularly in immunosuppressed membrane (GBM); hematologic abnormalities; and patients (7). others. One biopsy series of children from the United Microscopic hematuria can also be the result of States with persistent microscopic hematuria lasting a structural urinary tract lesion. The most serious 1Division of Pediatric Nephrology, Nationwide Children’s Hospital, Columbus, Ohio 2Division of Pediatric Nephrology, University of Minnesota Masonic Children’s Hospital, Minneapolis, Minnesota Correspondence: Michelle N. Rheault, Division of Pediatric Nephrology, University of Minnesota, 2450 Riverside Avenue, MB680, Minneapolis, MN 55454. Email: [email protected] 1014 Copyright © 2020 by the American Society of Nephrology www.kidney360.org Vol 1 September, 2020 KIDNEY360 1: 1014–1020, September, 2020 Approach to Persistent Microscopic Hematuria in Children, Kallash and Rheault 1015 lesions are malignant (such as Wilms tumor or renal cell Hypercalciuria is believed to cause hematuria by irritat- carcinoma). However, malignancies are rare in children and ing the uroepithelial cells, and it can be associated with more often present with other symptoms, such as abdom- microscopic or gross hematuria and/or urinary tract symp- inal pain or mass (8,9). Other etiologies may include bladder toms, such as dysuria. It may also increase the risk of kidney lesions, such as eosinophilic cystitis; hemangiomas; and stones (28,29). After it is diagnosed, serum Ca should be malignancy or hydronephrosis (10). obtained to differentiate idiopathic hypercalciuria (where Terminal hematuria is a pattern of typically painless gross serum Ca is normal) from that secondary to hypercalcemia hematuria at the end of the void. Microscopic hematuria (such as hyperparathyroidism, vitamin D toxicity, etc.). may be present between occurrences. This is most often Similarly, nephrolithiasis can cause microscopic and/or caused by idiopathic urethritis but can also be due to an macroscopic hematuria. Although not as common as in infection, such as Schistosomiasis, in patients with a history adults, the incidence of pediatric stone disease has increased of travel to endemic areas (11,12). Careful questioning about in recent years (30). After it is suspected, kidney imaging any history of gross hematuria and pattern of hematuria is should be obtained to confirm the presence of stones and important in children with microscopic hematuria. evaluate for possible hydronephrosis. Kidney ultrasound is Another potential structural cause for microscopic he- usually the initial modality of choice because it is effective to maturia is nutcracker syndrome, in which the left renal show kidney stones (.5–8 mm) while avoiding radiation. vein is compressed by the aorta and/or superior mesen- However, helical computed tomography continues to be the teric artery, causing kidney congestion and hematuria. most sensitive modality to detect kidney or ureteral stones Although previously thought to be a rare finding in chil- regardless of the size. Most children with kidney stones dren, recent studies suggest that it is a frequent cause of have identifiable risk factors (31), including hypercalciuria, persistent microscopic hematuria in this population. A hypocitraturia, hyperuricosuria, and/or urinary solute study of 216 children with hematuria (176 microscopic supersaturation. and40gross)showedthatnutcrackersyndromewasdi- agnosed in 33.3% (13). This study was performed at a sin- gle center by an experienced radiologist with expertise in Disorders of the GBM the diagnosis of nutcracker syndrome. Referral bias, pa- The GBM imparts a significant barrier to the passage of tient population, and expertise of the ultrasonographer red blood cells into the urine, and disorders of the GBM may may all have contributed to the high incidence of nut- lead to microscopic hematuria. Type IV collagen is the cracker syndrome in this study. Of 736 patients with predominant collagen in the GBM, and it is composed of nutcracker syndrome, 288 patients (39%) had microscopic trimers of a3(IV), a4(IV), and a5(IV) encoded by genes hematuria, whereas the remaining 448 patients had gross COL4A3, COL4A4, and COL4A5, respectively. Mutations hematuria (14). Nutcracker syndrome can be asymptom- in COL4A5 on the X chromosome in boys cause classic atic or associated with abdominal or flank pain (15). It can Alport syndrome. Classic Alport syndrome manifests as be diagnosed by careful kidney ultrasound with doppler microscopic hematuria from birth with progression to pro- (13,14), although more invasive testing (such as computed teinuria and eventual loss of kidney function and ESKD, tomography angiography or magnetic resonance angiog- typically in the mid-20s but may be earlier or later depend- raphy or arteriography) might be required for diagnosis in ing on genotype and treatment (32). Affected individuals some cases. often have hearing loss and eye abnormalities as well due to presence of the a3a4a5(IV) trimer in the cochlea and lens of the eye. Girls with a heterozygous mutation in COL4A5 Hypercalciuria and Kidney Stones have a variable course ranging from only microscopic he- Hypercalciuria is one of the most common causes of maturia throughout life to ESKD in 10%–15% (33,34). Muta- persistent microscopic hematuria (16,17).
Load more

Recommended publications
  • Surgeons, Columbia University, New York City) (Received for Publication August 9, 1932)
    THE ADDIS SEDIMENT COUNT IN NORMAL CHILDREN By JOHN D. LYTTLE (From the Babies Hospit and the Department of Pediatrics, Colege of Physicians and Surgeons, Columbia University, New York City) (Received for publication August 9, 1932) THE METHOD In 1925 Addis (1) described a method by which, in a concentrated acid urine, the rate of excretion of protein, casts and red and white cells could be determined. His method, with certain modifications, has been followed here. All of the counts were made on the 12 hour night specimen from 7 or 8 P.M. to 7 or 8 A.M. Addis recommended that fluids be restricted during, and for 12 hours preceding the collection, since in dilute and alkaline urine hyaline casts dissolve and red cells may be completely lysed. With children this rigid restriction of fluid proved impossible. Withholding fluid during the afternoon and night except for 200 cc. at the evening meal, gave urines of such concentration and acidity that they were suitable for a count. Most children had an early supper and col- lections were started at 7 or 8 P.M. Under these conditions, the urinary pH was between 5.0 and 6.0 and the specific gravity usually well above 1.020. The specimens were treated as described by Addis: "the con- centrated night urine is thoroughly mixed by repeated inversion of the rubber-stoppered bottle and a 10 cc. sample is transferred to a special graduated tube, and centrifugalized for five minutes at 1,800 revolutions per minute. The supernatant urine is decanted and pipetted down to a known volume which varies with the amount of sediment as judged by direct observation.
    [Show full text]
  • PDI Appendix G Intermediate-Risk Immunocompromised State Ef Ec2
    AHRQ QI™ ICD‐10‐CM/PCS Specification Enhanced Version 5.0 1 of 6 Pediatric Quality Indicators Appendices www.qualityindicators.ahrq.gov Pediatric Quality Indicators Appendices APPENDIX G: Intermediate-Risk Immunocompromised State Diagnosis Codes Intermediate-risk immunocompromised state diagnosis codes: (IMMUITD) ICD-9-CM Description ICD-10-CM Description 07022 VIRAL HEPATITIS B W HEPATIC COMA, CHRONIC WO B180 Chronic viral hepatitis B with delta‐agent MENTION OF HEPATITIS DELTA 07023 VIRAL HEPATITIS B W HEPACTIC COMA, CHRONIC W B181 Chronic viral hepatitis B without delta‐agent HEPATITIS DELTA 07044 CHRONIC HEPATITIS C WITH HEPACTIC COMMA B182 Chronic viral hepatitis C 2894 HYPERSPLENISM B520 Plasmodium malariae malaria with nephropathy 28950 DISEASE OF SPLEEN NOS D5702 Hb‐SS disease with splenic sequestration 28951 CHRONIC DIGESTIVE SPLENOMEGALY D57212 Sickle‐cell/Hb‐C disease with splenic sequestration 28952 SPLENIC SEQUESTRATION D57412 Sickle‐cell thalassemia with splenic sequestration 28959 OTHER DISEASE OF SPLEEN, OTHER D57812 Other sickle‐cell disorders with splenic sequestration 4560 ESOPHAGEAL VARICES W BLEEDING D730 Hyposplenism 4561 ESOPHAGEAL VARICES WO MENTION OF BLEEDING D731 Hypersplenism 45620 ESOPHAGEAL VARICES IN DISEASE CLASSIFIED D732 Chronic congestive splenomegaly ELSEWHERE, W BLEEDING 45621 ESOPHAGEAL VARICES IN DISEASE CLASSIFIED D733 Abscess of spleen ELSEWHERE, WO MENTION OF BLEEDING 5723 PORTAL HYPERTENSION D735 Infarction of spleen 5728 OTHER SEQUELAE OF CHRONIC LIVER DISEASE D7389 Other diseases of spleen 5735
    [Show full text]
  • Albuminuria Versus Egfr
    Albuminuria versus GFR as markers of diabetic CKD progression KDIGO Controversies Conference: “Diabetic Kidney Disease” New Delhi, March 2012 Richard J MacIsaac PhD FRACP Director of Endocrinology & Diabetes, St Vincent's Hospital Professorial Fellow, University of Melbourne Evolution of Diabetic CKD Incipient Overt Nephropathy Nephropathy GFR 100 Log AER (ml/min) GFR 10 15 20 yrs Normoalbuminuria Microalbuminuria Macroalbuminuria (AER < 20 µµµg/min) (AER 20-200 µµµg/min) (AER > 200 µµµg/min) Stages of CKD Stage eGFR Description Predominant (ml/min/1.73 m2) AER status 1 > 90 Kidney damage with normal/high GFR Normo- Micro- 2 60-89 Kidney damage with mild reduction in GFR Micro- 3 30-59 Kidney damage with moderate reduction in Micro/Macro- GFR 4 15-29 Kidney damage with severe reduction in Macro- GFR 5 < 15 Kidney failure Albuminuria versus GFR as markers of diabetic CKD progression 1. Albuminuria as a predictor of diabetic CKD 2. GFR as a predictor of diabetic CKD 3. Albuminuria & GFR uncoupling/coupling 4. Summary Albuminuria as a marker of diabetic CKD progression • High Variability M N • Low Specificity • Spontaneous Regression µ • Δ AER ≠ Δ GFR Higher levels of urinary albumin excretion within the normal range predict faster decline in glomerular filtration rate in diabetic patients Babazono T et al. Diabetes Care 2009;32:1518-1520 Albuminuria versus GFR as markers of diabetic CKD progression 1. Albuminuria as a predictor of diabetic CKD 2. GFR as a predictor of diabetic CKD 3. ALbuminuria & GFR uncoupling/coupling 4. Summary GFR as
    [Show full text]
  • Extrarenal Complications of the Nephrotic Syndrome
    Kidney International, Vol. 33 (/988), pp. 1184—1202 NEPHROLOGY FORUM Extrarenal complications of the nephrotic syndrome Principal discussant: DAVID B. BERNARD The University Hospital and Boston University Sc/zoo!ofMedicine, Boston, Massachusetts present and equal. The temperature was 100°F. The blood pressure was 110/70 mm Hg in the right arm with the patient supine and standing. The Editors patient had no skin rashes, peteehiae, clubbing, or jaundice. Examina- JORDANJ. COHEN tion of the head and neck revealed intact cranial nerves and normal fundi. Ears, nose, and throat were normal. The jugular venous pressure Jot-IN T. HARRtNOTON was not increased. No lymph glands were palpable in the neck or JEROME P. KASSIRER axillae, and the trachea was midline, cardiac examination was normal. NICOLA05 E. MAmAs Examination of the lungs revealed coarse rales at the right base but no other abnormalities. Abdominal examination revealed aseites, but no Editor abdominal guarding, tenderness, or rigidity. The liver and spleen were Managing not palpable and no masses were present. The urine contained 4± CHERYL J. ZUSMAN protein; microscopic examination revealed free fat droplets, many oval fat bodies, and numerous fatty casts. Five to 10 red blood cells were seen per high-power field, but no red blood cell casts were present. A Universityof'Chicago Pritzker School of Medicine 24-hr urine collection contained 8 g of protein. The BUN was 22 mg/dl; creatinine, 2.0 mg/dl; and electrolytes were and normal. Serum total calcium was 7.8 mg/dl, and the phosphorus was 4.0 Taf is University School of' Medicine mg/dl.
    [Show full text]
  • Uremic Toxins Affect Erythropoiesis During the Course of Chronic
    cells Review Uremic Toxins Affect Erythropoiesis during the Course of Chronic Kidney Disease: A Review Eya Hamza 1, Laurent Metzinger 1,* and Valérie Metzinger-Le Meuth 1,2 1 HEMATIM UR 4666, C.U.R.S, Université de Picardie Jules Verne, CEDEX 1, 80025 Amiens, France; [email protected] (E.H.); [email protected] (V.M.-L.M.) 2 INSERM UMRS 1148, Laboratory for Vascular Translational Science (LVTS), UFR SMBH, Université Sorbonne Paris Nord, CEDEX, 93017 Bobigny, France * Correspondence: [email protected]; Tel.: +33-2282-5356 Received: 17 July 2020; Accepted: 4 September 2020; Published: 6 September 2020 Abstract: Chronic kidney disease (CKD) is a global health problem characterized by progressive kidney failure due to uremic toxicity and the complications that arise from it. Anemia consecutive to CKD is one of its most common complications affecting nearly all patients with end-stage renal disease. Anemia is a potential cause of cardiovascular disease, faster deterioration of renal failure and mortality. Erythropoietin (produced by the kidney) and iron (provided from recycled senescent red cells) deficiencies are the main reasons that contribute to CKD-associated anemia. Indeed, accumulation of uremic toxins in blood impairs erythropoietin synthesis, compromising the growth and differentiation of red blood cells in the bone marrow, leading to a subsequent impairment of erythropoiesis. In this review, we mainly focus on the most representative uremic toxins and their effects on the molecular mechanisms underlying anemia of CKD that have been studied so far. Understanding molecular mechanisms leading to anemia due to uremic toxins could lead to the development of new treatments that will specifically target the pathophysiologic processes of anemia consecutive to CKD, such as the newly marketed erythropoiesis-stimulating agents.
    [Show full text]
  • Glomerulonephritis Management in General Practice
    Renal disease • THEME Glomerulonephritis Management in general practice Nicole M Isbel MBBS, FRACP, is Consultant Nephrologist, Princess Alexandra lomerular disease remains an important cause Hospital, Brisbane, BACKGROUND Glomerulonephritis (GN) is an G and Senior Lecturer in important cause of both acute and chronic kidney of renal impairment (and is the commonest cause Medicine, University disease, however the diagnosis can be difficult of end stage kidney disease [ESKD] in Australia).1 of Queensland. nikky_ due to the variability of presenting features. Early diagnosis is essential as intervention can make [email protected] a significant impact on improving patient outcomes. OBJECTIVE This article aims to develop However, presentation can be variable – from indolent a structured approach to the investigation of patients with markers of kidney disease, and and asymptomatic to explosive with rapid loss of kidney promote the recognition of patients who need function. Pathology may be localised to the kidney or further assessment. Consideration is given to the part of a systemic illness. Therefore diagnosis involves importance of general measures required in the a systematic approach using a combination of clinical care of patients with GN. features, directed laboratory and radiological testing, DISCUSSION Glomerulonephritis is not an and in many (but not all) cases, a kidney biopsy to everyday presentation, however recognition establish the histological diagnosis. Management of and appropriate management is important to glomerulonephritis (GN) involves specific therapies prevent loss of kidney function. Disease specific directed at the underlying, often immunological cause treatment of GN may require specialist care, of the disease and more general strategies aimed at however much of the management involves delaying progression of kidney impairment.
    [Show full text]
  • Pyelonephritis (Kidney Infection)
    Pyelonephritis (Kidney Infection) Cathy E. Langston, DVM, DACVIM (Small Animal) BASIC INFORMATION urine collected from the bladder to be negative despite infection in the Description kidney. Abdominal x-rays and an ultrasound may be recommended. Bacterial infection of the kidney is termed pyelonephritis . Infection Although culture of a piece of kidney tissue obtained by biopsy may occur within kidney tissue or in the renal pelvis, the area of increases the chance of finding the infection, the invasiveness of the kidney where urine collects before being transported to the the procedure makes it too risky for general use (the biopsy would bladder. need to be taken from deeper within the kidney than the average Causes kidney biopsy). Contrast x-ray studies, such as an excretory uro- In most cases, a urinary tract infection starts in the bladder and gram (intravenous pyelogram), are sometimes helpful. An excre- the bacteria travel upstream to the kidney. Anything that decreases tory urogram involves taking a series of x-rays after a dye (that the free flow of urine, such as obstruction of the urethra (tube shows up white on x-rays) is given intravenously. Other tests may that carries urine from the bladder to the outside), bladder, ureter be recommended to rule out diseases that cause similar clinical (tube that carries urine from the kidney to the bladder), or kid- signs and other causes of kidney disease. ney, increases the risk that the infection will spread to the kid- ney. The presence of stones and growths in the bladder and kidney TREATMENT AND FOLLOW-UP also increases the risk.
    [Show full text]
  • Urinalysis and Kidney Disease: What You Need to Know
    URINALYSIS AND KIDNEY DISEASE What You Need To Know www.kidney.org About the Information in this Booklet Did you know that the National Kidney Foundation (NKF) offers guidelines and commentaries that help your healthcare provider make decisions about your medical treatment? The information in this booklet is based on those recommended guidelines. Stages of Kidney Disease There are five stages of kidney disease. They are shown in the table below. Your healthcare provider determines your stage of kidney disease based on the presence of kidney damage and your glomerular filtration rate (GFR), which is a measure of your kidney function. Your treatment is based on your stage of kidney disease. Speak to your healthcare provider if you have any questions about your stage of kidney disease or your treatment. STAGES OF KIDNEY DISEASE Glomerular Stage Description Filtration Rate (GFR)* Kidney damage (e.g., protein 1 90 or above in the urine) with normal GFR Kidney damage with mild 2 60 to 89 decrease in GFR 3 Moderate decrease in GFR 30 to 59 4 Severe reduction in GFR 15 to 29 5 Kidney failure Less than 15 *Your GFR number tells your healthcare provider how much kidney function you have. As chronic kidney disease progresses, your GFR number decreases. What is a urinalysis (also called a “urine test”)? A urinalysis is a simple test that looks at a small sample of your urine. It can help find conditions that may need treatment, including infections or kidney problems. It can also help find serious diseases in the early stages, like chronic kidney disease, diabetes, or liver disease.
    [Show full text]
  • High Blood Pressure and Chronic Kidney Disease: for People
    HIGH BLOOD PRESSURE AND CHRONIC KIDNEY DISEASE For People with CKD Stages 1–4 www.kidney.org National Kidney Foundation's Kidney Disease Outcomes Quality Initiative Did you know that the National Kidney Foundation's Kidney Disease Outcomes Quality Initiative (NKF-KDOQI™) has guidelines and commentaries that help your doctor and healthcare team make important decisions about your medical treatment? The information in this booklet is based on the NKF- KDOQI recommended guidelines and commentaries. What is your stage of kidney disease? There are five stages of kidney disease. They are shown in the table below. Your doctor determines your stage of kidney disease based on the presence of kidney damage and your glomerular filtration rate (GFR), which is a measure of your level of kidney function. Your treatment is based on your stage of kidney disease. Speak to your doctor if you have any questions about your stage of kidney disease or your treatment. STAGES of KidNEY DISEASE AGES of KidNEY DISEASE STAGES OF KIDNEY DISEASE Stage Description Glomerular Filtration Rate (GFR)* Kidney damage (e.g., protein 1 90 or above in the urine) with normal GFR Kidney damage with mild 2 60 to 89 decrease in GFR 3 Moderate decrease in GFR 30 to 59 4 Severe reduction in GFR 15 to 29 5 Kidney failure Less than 15 *Your GFR number tells your doctor how much kidney function you have. As chronic kidney disease progresses, your GFR number decreases. 2 NATIONAL KIDNEY FOUNDATION TABLE of ConTEntS Did you know? ...............................4 What is chronic kidney disease? ................5 What is high blood pressure? ...................6 How are high blood pressure and kidney disease related? ..............................6 How do I know if my blood pressure is too high? ..................................7 How is blood pressure measured? How often should it be checked? ...............8 I have high blood pressure but am not sure if I have CKD.
    [Show full text]
  • Urinary System Diseases and Disorders
    URINARY SYSTEM DISEASES AND DISORDERS BERRYHILL & CASHION HS1 2017-2018 - CYSTITIS INFLAMMATION OF THE BLADDER CAUSE=PATHOGENS ENTERING THE URINARY MEATUS CYSTITIS • MORE COMMON IN FEMALES DUE TO SHORT URETHRA • SYMPTOMS=FREQUENT URINATION, HEMATURIA, LOWER BACK PAIN, BLADDER SPASM, FEVER • TREATMENT=ANTIBIOTICS, INCREASE FLUID INTAKE GLOMERULONEPHRITIS • AKA NEPHRITIS • INFLAMMATION OF THE GLOMERULUS • CAN BE ACUTE OR CHRONIC ACUTE GLOMERULONEPHRITIS • USUALLY FOLLOWS A STREPTOCOCCAL INFECTION LIKE STREP THROAT, SCARLET FEVER, RHEUMATIC FEVER • SYMPTOMS=CHILLS, FEVER, FATIGUE, EDEMA, OLIGURIA, HEMATURIA, ALBUMINURIA ACUTE GLOMERULONEPHRITIS • TREATMENT=REST, SALT RESTRICTION, MAINTAIN FLUID & ELECTROLYTE BALANCE, ANTIPYRETICS, DIURETICS, ANTIBIOTICS • WITH TREATMENT, KIDNEY FUNCTION IS USUALLY RESTORED, & PROGNOSIS IS GOOD CHRONIC GLOMERULONEPHRITIS • REPEATED CASES OF ACUTE NEPHRITIS CAN CAUSE CHRONIC NEPHRITIS • PROGRESSIVE, CAUSES SCARRING & SCLEROSING OF GLOMERULI • EARLY SYMPTOMS=HEMATURIA, ALBUMINURIA, HTN • WITH DISEASE PROGRESSION MORE GLOMERULI ARE DESTROYED CHRONIC GLOMERULONEPHRITIS • LATER SYMPTOMS=EDEMA, FATIGUE, ANEMIA, HTN, ANOREXIA, WEIGHT LOSS, CHF, PYURIA, RENAL FAILURE, DEATH • TREATMENT=LOW NA DIET, ANTIHYPERTENSIVE MEDS, MAINTAIN FLUIDS & ELECTROLYTES, HEMODIALYSIS, KIDNEY TRANSPLANT WHEN BOTH KIDNEYS ARE SEVERELY DAMAGED PYELONEPHRITIS • INFLAMMATION OF THE KIDNEY & RENAL PELVIS • CAUSE=PYOGENIC (PUS-FORMING) BACTERIA • SYMPTOMS=CHILLS, FEVER, BACK PAIN, FATIGUE, DYSURIA, HEMATURIA, PYURIA • TREATMENT=ANTIBIOTICS,
    [Show full text]
  • Role of Urinalysis in the Diagnosis of Chronic Kidney Disease (CKD)
    Research and Reviews Role of Urinalysis in the Diagnosis of Chronic Kidney Disease (CKD) JMAJ 54(1): 27–30, 2011 Kunitoshi ISEKI*1 Abstract As of the end of Year 2008, 1 out of 450 people was a dialysis patient in Japan, and patients with chronic kidney disease (CKD) at stages 3 and 4 accounted for nearly 10% of the total population. An epidemiological study in Okinawa that used the introduction of dialysis treatment as the outcome revealed that the 10-year cumulative incident rate of end-stage renal disease (ESRD) was about 3% of the participants who were positive (Ն 1ϩ) for both proteinuria and hematuria, while there was hardly any difference between those who were positive for hematuria alone and those who were negative for both proteinuria and hematuria. When the incidence of ESRD (dialysis introduction) was examined in relation to the severity of proteinuria (5 grades ranging from [Ϫ] to [Ն 3ϩ]) as determined by dipstick, the cumulative incidence rate during the 17-year observation period was 16% for proteinuria (Ն 3ϩ) and about 7% for proteinuria (2ϩ). In contrast, among participants who were negative for proteinuria, the rate of dialysis introduction in 10 years is about 1 out of 1 million. The CKD Practice Guide of the Japanese Society of Nephrology recommends referral to a nephrologist when a case meets any of the following 3 criteria: 1) 0.5g/g creatinine or higher, or proteinuria (Ն 2ϩ), 2) an estimated glomerular filtration rate of less than 50ml/min/1.73m2, or 3) positive results (Ն 1ϩ) for both proteinuria and hematuria tests.
    [Show full text]
  • Proteinuria and Albuminuria: What’S the Difference? Cynthia A
    EXPERTQ&A Proteinuria and Albuminuria: What’s the Difference? Cynthia A. Smith, DNP, CNN-NP, FNP-BC, APRN, FNKF What exactly is the difference between TABLE Q the protein-to-creatinine ratio and the Persistent Albuminuria Categories microalbumin in the lab report? How do they compare? Category Description UACR For the non-nephrology provider, the options for A1 Normal to mildly < 30 mg/g evaluating urine protein or albumin can seem con- increased (< 3 mg/mmol) fusing. The first thing to understand is the impor- tance of assessing for proteinuria, an established A2 Moderately 30-300 mg/g marker for chronic kidney disease (CKD). Higher increased (3-30 mg/mmol) protein levels are associated with more rapid pro- A3 Severely > 300 mg/g gression of CKD to end-stage renal disease and in- increased (> 30 mg/mmol) creased risk for cardiovascular events and mortality in both the nondiabetic and diabetic populations. Abbreviation: UACR, urine albumin-to-creatinine ratio. Monitoring proteinuria levels can also aid in evaluat- Source: KDIGO. Kidney Int. 2012.1 ing response to treatment.1 Proteinuria and albuminuria are not the same low-up testing. While the UACR is typically reported thing. Proteinuria indicates an elevated presence as mg/g, it can also be reported in mg/mmol.1 Other of protein in the urine (normal excretion should be options include the spot urine protein-to-creatinine < 150 mg/d), while albuminuria is defined as an “ab- ratio (UPCR) and a manual reading of a reagent strip normal loss of albumin in the urine.”1 Albumin is a (urine dipstick test) for total protein.
    [Show full text]