Polytrauma Care and Rehabilitation David X
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Patient-Monitoring Systems
17 Patient-Monitoring Systems REED M. GARDNER AND M. MICHAEL SHABOT After reading this chapter,1 you should know the answers to these questions: ● What is patient monitoring, and why is it done? ● What are the primary applications of computerized patient-monitoring systems in the intensive-care unit? ● How do computer-based patient monitors aid health professionals in collecting, analyzing, and displaying data? ● What are the advantages of using microprocessors in bedside monitors? ● What are the important issues for collecting high-quality data either automatically or manually in the intensive-care unit? ● Why is integration of data from many sources in the hospital necessary if a computer is to assist in critical-care-management decisions? 17.1 What Is Patient Monitoring? Continuous measurement of patient parameters such as heart rate and rhythm, respira- tory rate, blood pressure, blood-oxygen saturation, and many other parameters have become a common feature of the care of critically ill patients. When accurate and imme- diate decision-making is crucial for effective patient care, electronic monitors frequently are used to collect and display physiological data. Increasingly, such data are collected using non-invasive sensors from less seriously ill patients in a hospital’s medical-surgical units, labor and delivery suites, nursing homes, or patients’ own homes to detect unex- pected life-threatening conditions or to record routine but required data efficiently. We usually think of a patient monitor as something that watches for—and warns against—serious or life-threatening events in patients, critically ill or otherwise. Patient monitoring can be rigorously defined as “repeated or continuous observations or meas- urements of the patient, his or her physiological function, and the function of life sup- port equipment, for the purpose of guiding management decisions, including when to make therapeutic interventions, and assessment of those interventions” (Hudson, 1985, p. -
Capnography 101 Oxygenation and Ventilation
It’s Time to Start Using it! Capnography 101 Oxygenation and Ventilation What is the difference? Oxygenation and Ventilation Ventilation O Oxygenation (capnography) 2 (oximetry) CO Cellular 2 Metabolism Capnographic Waveform • Capnograph detects only CO2 from ventilation • No CO2 present during inspiration – Baseline is normally zero CD AB E Baseline Capnogram Phase I Dead Space Ventilation • Beginning of exhalation • No CO2 present • Air from trachea, posterior pharynx, mouth and nose – No gas exchange occurs there – Called “dead space” Capnogram Phase I Baseline A B I Baseline Beginning of exhalation Capnogram Phase II Ascending Phase • CO2 from the alveoli begins to reach the upper airway and mix with the dead space air – Causes a rapid rise in the amount of CO2 • CO2 now present and detected in exhaled air Alveoli Capnogram Phase II Ascending Phase C Ascending II Phase Early A B Exhalation CO2 present and increasing in exhaled air Capnogram Phase III Alveolar Plateau • CO2 rich alveolar gas now constitutes the majority of the exhaled air • Uniform concentration of CO2 from alveoli to nose/mouth Capnogram Phase III Alveolar Plateau Alveolar Plateau CD III AB CO2 exhalation wave plateaus Capnogram Phase III End-Tidal • End of exhalation contains the highest concentration of CO2 – The “end-tidal CO2” – The number seen on your monitor • Normal EtCO2 is 35-45mmHg Capnogram Phase III End-Tidal End-tidal C D AB End of the the wave of exhalation Capnogram Phase IV Descending Phase • Inhalation begins • Oxygen fills airway • CO2 level quickly -
Monitoring Anesthetic Depth
ANESTHETIC MONITORING Lyon Lee DVM PhD DACVA MONITORING ANESTHETIC DEPTH • The central nervous system is progressively depressed under general anesthesia. • Different stages of anesthesia will accompany different physiological reflexes and responses (see table below, Guedel’s signs and stages). Table 1. Guedel’s (1937) Signs and Stages of Anesthesia based on ‘Ether’ anesthesia in cats. Stages Description 1 Inducement, excitement, pupils constricted, voluntary struggling Obtunded reflexes, pupil diameters start to dilate, still excited, 2 involuntary struggling 3 Planes There are three planes- light, medium, and deep More decreased reflexes, pupils constricted, brisk palpebral reflex, Light corneal reflex, absence of swallowing reflex, lacrimation still present, no involuntary muscle movement. Ideal plane for most invasive procedures, pupils dilated, loss of pain, Medium loss of palpebral reflex, corneal reflexes present. Respiratory depression, severe muscle relaxation, bradycardia, no Deep (early overdose) reflexes (palpebral, corneal), pupils dilated Very deep anesthesia. Respiration ceases, cardiovascular function 4 depresses and death ensues immediately. • Due to arrival of newer inhalation anesthetics and concurrent use of injectable anesthetics and neuromuscular blockers the above classic signs do not fit well in most circumstances. • Modern concept has two stages simply dividing it into ‘awake’ and ‘unconscious’. • One should recognize and familiarize the reflexes with different physiologic signs to avoid any untoward side effects and complications • The system must be continuously monitored, and not neglected in favor of other signs of anesthesia. • Take all the information into account, not just one sign of anesthetic depth. • A major problem faced by all anesthetists is to avoid both ‘too light’ anesthesia with the risk of sudden violent movement and the dangerous ‘too deep’ anesthesia stage. -
Evaluation and Management of the Polytraumatized Patient in Various Centers
World J. Surg. 7, 143-148, 1983 Wor Journal of Stirgery Evaluation and Management of the Polytraumatized Patient in Various Centers S. Olerud, M.D., and M. Allg6wer, M.D. The Akademiska Sjukhuset Uppsala, Sweden, and the Department of Surgery, Kantonsspital, Basel, Switzerland A questionnaire was sent to the following 6 trauma centers: Paris: Two or more peripheral, visceral, or com- University Hospital for Accident Surgery, Hannover, Fed- plex injuries with respiratory and circulatory fail- eral Republic of Germany (Prof. H. Tscherne); University ure. (This excludes patients who only have sus- of Munich, Department of Surgery, Klinikum Grossha- tained fractures.) dern, Munich, Federal Republic of Germany (Prof. G. Dallas: Multiply injured patient presenting le- Heberer); Akademiska Sjukhuset Uppsala, Sweden (Prof. sions to 2 cavities, associated with 2 or more long S. Olerud); University Hospital, Department of Surgery, bone failures; lesions to 1 cavity associated with 2 Basel, Switzerland (Prof. M. Allgiiwer); H6pital de la Piti~, or more long bone failures; or lesions to multiple Paris, France (Prof. R. Roy-Camille); and University of extremities (at minimum, 3 long bone failures). Texas Southwestern Medical School, Dallas, Texas, U.S.A. (Prof. B. Claudi). Their answers have been summarized in a few short paragraphs where tabulation was not possible, Do You Grade Polytrauma, and If So, How? and then mainly in tabular form for convenient comparison among the various centers. There seems to be considerable international agreement on the main points of early aggres- Hannover: Yes, with our own grading system along sive cardiopulmonary management to prevent multiple with ISS and AIS. -
Air & Surface Transport Nurses Association Position Statement
Air & Surface Transport Nurses Association Position Statement Advanced Airway Management Background In the early 1970s, civilian flight nursing became a recognized nursing specialty and an integral element in the care of critically ill and injured patients. Advanced airway management is an essential procedure in meeting those patient care goals. The procedure can be performed safely and effectively by properly trained transport teams; however, it is not without risks and complications. Individual state Boards of Nursing regulate registered nursing licensure. ASTNA believes transport providers and teams must work collegially and collaboratively with these regulatory bodies. Registered nurses who perform advanced airway management provide care under the direction and protocols of their medical directors. In addition, Registered Nurses who perform advanced airway management skills must have comprehensive initial and ongoing education to optimize clinical knowledge, skill, and decision-making ability. Education programs teaching these advanced airway management skills should include at least the following components: • Comprehensive review of airway/respiratory anatomy and physiology • Basic airway skills and techniques • Clinical assessment skills to evaluate the need for escalated intervention • Extraglottic airway devices • Tracheal intubation using a variety of devices • Surgical airway techniques • Pharmacology and clinical application of sedative, analgesic, hypnotic, and neuromuscular blocking agents used in advanced airway management • Patient safety monitoring equipment, including continuous pulse oximetry, continuous heart rate, and continuous monitoring of waveform capnography • Teamwork and crisis resource management, as applied to the clinical environment both as team leaders and team members Clinical best practices evolve continuously.1 Transport programs performing advanced airway should adopt policies that ensure clinical education and practice components remain current. -
Development of a Large Animal Model of Lethal Polytrauma and Intra
Open access Original research Trauma Surg Acute Care Open: first published as 10.1136/tsaco-2020-000636 on 1 February 2021. Downloaded from Development of a large animal model of lethal polytrauma and intra- abdominal sepsis with bacteremia Rachel L O’Connell, Glenn K Wakam , Ali Siddiqui, Aaron M Williams, Nathan Graham, Michael T Kemp, Kiril Chtraklin, Umar F Bhatti, Alizeh Shamshad, Yongqing Li, Hasan B Alam, Ben E Biesterveld ► Additional material is ABSTRACT abdomen and pelvic contents. The same review published online only. To view, Background Trauma and sepsis are individually two of showed that of patients with whole body injuries, please visit the journal online 1 (http:// dx. doi. org/ 10. 1136/ the leading causes of death worldwide. When combined, 37.9% had penetrating injuries. The abdomen is tsaco- 2020- 000636). the mortality is greater than 50%. Thus, it is imperative one area of the body which is particularly suscep- to have a reproducible and reliable animal model to tible to penetrating injuries.2 In a review of patients Surgery, Michigan Medicine, study the effects of polytrauma and sepsis and test novel in Afghanistan with penetrating abdominal wounds, University of Michigan, Ann treatment options. Porcine models are more translatable the majority of injuries were to the gastrointes- Arbor, Michigan, USA to humans than rodent models due to the similarities tinal tract with the most common injury being to 3 Correspondence to in anatomy and physiological response. We embarked the small bowel. While this severe constellation Dr Glenn K Wakam; gw akam@ on a study to develop a reproducible model of lethal of injuries is uncommon in the civilian setting, med. -
Renal Endocrine Manifestations During Polytrauma: a Cause of Concern for the Anesthesiologist
Review Article Renal endocrine manifestations during polytrauma: A cause of concern for the anesthesiologist Sukhminder Jit Singh Bajwa, Ashish Kulshrestha Department of Anesthesiology and Intensive Care, Gian Sagar Medical College and Hospital, Ram Nagar, Banur, Punjab, India ABSTRACT Nowadays, an increasing number of patients get admitted with polytrauma, mainly due to road traffic accidents. These polytrauma victims may exhibit associated renal injuries, in addition to bone injuries and injuries to other visceral organs. Nevertheless, even in cases of polytrauma, renal tissue is hyperfunctional as part of the normal protective responses of the body to external insults. Both polytrauma and renal injuries exhibit widespread renal, endocrine, and metabolic responses. The situation is very challenging for the attending anesthesiologist, as he is expected to contribute immensely, not only in the resuscitation of such patients, but if required, to allow the operative procedures in case of life-threatening injuries. During administration of anesthesia, care has to be taken, not only to maintain hemodynamic stability, but equal attention has to be paid to various renal protection strategies. At the same time, various renoendocrine manifestations have to be taken into account, so that a judicious use of anesthesia drugs can be made, to minimize the renal insults. Key words: Anesthesia, polytrauma, renal injuries, renal protection, renoendocrine manifestations INTRODUCTION trauma are also one of the major protective responses exerted by the body to maintain a normal metabolic and Major trauma is a pathophysiological state that threatens endocrine milieu. The caloric substitutes are mobilized so [2] the integrity of the internal environment, causing alteration that supply of glucose to the vital organs is maintained. -
Prehospital Determination of Tracheal Tube Placement in Severe Head Injury
518 PREHOSPITAL CARE Prehospital determination of tracheal tube placement in severe head injury Emerg Med J: first published as on 18 June 2004. Downloaded from Sˇ Grmec, Sˇ Mally ............................................................................................................................... Emerg Med J 2004;21:518–520. doi: 10.1136/emj.2002.001974 Objectives: The aim of this prospective study in the prehospital setting was to compare three different methods for immediate confirmation of tube placement into the trachea in patients with severe head injury: auscultation, capnometry, and capnography. Methods: All adult patients (.18 years) with severe head injury, maxillofacial injury with need of protection of airway, or polytrauma were intubated by an emergency physician in the field. Tube position was initially evaluated by auscultation. Then, capnometry and capnography was performed (infrared method). Emergency physicians evaluated capnogram and partial pressure of end tidal carbon dioxide See end of article for (EtCO2) in millimetres of mercury. Determination of final tube placement was performed by a second direct authors’ affiliations ....................... visualisation with laryngoscope. Data are mean (SD) and percentages. Results: There were 81 patients enrolled in this study (58 with severe head injury, 6 with maxillofacial Correspondence to: trauma, and 17 politraumatised patients). At the first attempt eight patients were intubated into the ˇ Dr S Mally, Zdravstveni oesophagus. Afterwards endotracheal intubation was undertaken in all without complications. The initial Dom, dr Adolfa Droica, Ulica talcev 9, Maribor, capnometry (sensitivity 100%, specificity 100%), capnometry after sixth breath (sensitivity 100%, specificity Slovenia; stefan.mally@ 100%), and capnography after sixth breath (sensitivity 100%, specificity 100%) were significantly better guest.arnes.si indicators for tracheal tube placement than auscultation (sensitivity 94%, specificity 66%, p,0.01). -
An Introduction to Anaesthesia
What You Need to KNoW about An introduction to anaesthesia Introduction divided into three stages: induction, main- n Central neuraxial block, e.g. spinal or Anaesthetic experience in the undergradu- tenance and emergence. epidural (Figure 1 and Table 1). ate timetable is often very limited so it can In regional anaesthesia, nerve transmis- remain somewhat of a mysterious practice sion is blocked, and the patient may stay Components of a general well into specialist training. This introduc- awake or be sedated or anaesthetized dur- anaesthetic tion to the components of an anaesthetic ing a procedure. Techniques used include: A general anaesthetic always involves an will help readers to get more from clinical n Local anaesthetic field block hypnotic agent, usually an analgesic and attachments in surgery and anaesthetics or n Peripheral nerve block may also include muscle relaxation. The serve as an introduction to the topic for n Nerve plexus block combination is referred to as the ‘triad of novice or non-anaesthetists. anaesthesia’. Figure 1. Schematic vertical longitudinal section The relative importance of each com- Types and sites of anaesthesia of vertebral column and structures encountered ponent depends on surgical and patient The term anaesthesia comes from the when performing central neuraxial blocks. * factors: the intervention planned, site, Greek meaning loss of sensation. negative pressure space filled with fat and surgical access requirement and the Anaesthetic practice has evolved from a venous plexi. † extends to S2, containing degree of pain or stimulation anticipated. need for pain relief and altered conscious- arachnoid mater, CSF, pia mater, spinal cord The technique is tailored to the individu- ness to allow surgery. -
Inpatient Sepsis Management
Inpatient Sepsis Management - Adult Page 1 of 6 Disclaimer: This algorithm has been developed for MD Anderson using a multidisciplinary approach considering circumstances particular to MD Anderson’s specific patient population, services and structure, and clinical information. This is not intended to replace the independent medical or professional judgment of physicians or other health care providers in the context of individual clinical circumstances to determine a patient's care. This algorithm should not be used to treat pregnant women. PRESENTATION EVALUATION TREATMENT Call Code Blue Team1 Patient exhibits at least two of the Yes following modified SIRS criteria: ● Temperature < 36 or > 38.4°C Is patient ● MERIT team1 to evaluate and notify Primary MD/APP STAT ● Heart rate > 110 bpm unresponsive? ● Prepare transfer to ICU See Page 2: Sepsis ● Respiratory rate > 24 bpm ● Assess for presence of infection (see Appendix A) Management ● WBC count < 3 or > 15 K/microliter ● Assess for organ dysfunction (see Appendix B) No Yes ● Primary team to consider goals of care discussion if appropriate Is 1,2 the patient ● Sepsis APP to notify unstable? Primary MD/APP 1,2 ● Sepsis APP to evaluate ● See Page 2: Sepsis No ● Assess for presence of infection (see Yes Management Appendix A) Sepsis? ● Assess for organ dysfunction (see ● For further work up, Appendix B) No initiate Early Sepsis Order Set ● Follow up evaluation by SIRS = systemic inflammatory response syndrome Primary Team APP = advanced practice provider 1 For patients in the Acute Cancer -
Adequate Interval for the Monitoring of Vital Signs During Endotracheal Intubation J.Y
Min et al. BMC Anesthesiology (2017) 17:110 DOI 10.1186/s12871-017-0399-y RESEARCHARTICLE Open Access Adequate interval for the monitoring of vital signs during endotracheal intubation J.Y. Min1, H.I. Kim1, S.J Park1, H. Lim2, J.H. Song2 and H. J. Byon1* Abstract Background: In the perioperative period, it may be inappropriate to monitor vital signs during endotracheal intubation using the same interval as during a hemodynamically stable period. The aim of the present study was to determine whether it is appropriate to use the same intervals used during the endotracheal intubation and stable periods to monitor vital signs of patients under general anesthesia. Methods: The mean arterial pressure (MAP) and heart rate (HR) were continuously measured during endotracheal intubation (15 min after intubation) and hemodynamically stable (15 min before skin incision) periods in 24 general anesthesia patients. Data was considered “unrecognized” when continuously measured values were 30% more or less than the monitored value measured at 5- or 2.5-min intervals. The incidence of unrecognized data during endotracheal intubation was compared to that during the hemodynamically stable period. Result: ThereweresignificantlymoreunrecognizedMAPdatameasured at 5-min intervals during endotracheal intubation than during the hemodynamically stable period (p value <0.05). However, there was no difference in the incidence of unrecognized MAP data at 2.5 min intervals or HR data at 5 or 2.5 min intervals between during the endotracheal intubation and hemodynamically stable periods. Conclusion: A 5-min interval throughout the operation period was not appropriate for monitoring vital signs. Therefore, , a 2.5-min interval is recommended for monitoring the MAP during endotracheal intubation. -
Predictive Value of Scoring System in Severe Pediatric Head Injury
Medicina (Kaunas) 2007; 43(11) 861 Predictive value of scoring system in severe pediatric head injury Dovilė Evalda Grinkevičiūtė, Rimantas Kėvalas, Viktoras Šaferis1, Algimantas Matukevičius1, Vytautas Ragaišis2, Arimantas Tamašauskas1 Department of Children’s Diseases, 1Institute for Biomedical Research, 2Department of Neurosurgery, Kaunas University of Medicine, Lithuania Key words: pediatric head trauma; Glasgow Coma Scale, Pediatric Trauma Score; Glasgow Outcome Scale, Pediatric Index of Mortality 2. Summary. Objectives. To determine the threshold values of Pediatric Index of Mortality 2 (PIM 2) score, Pediatric Trauma Score (PTS), and Glasgow Coma Scale (GCS) score for mortality in children after severe head injury and to evaluate changes in outcomes of children after severe head injury on discharge and after 6 months. Material and methods. All children with severe head injury admitted to the Pediatric Intensive Care Unit of Kaunas University of Medicine Hospital, Lithuania, from January 2004 to June 2006 were prospectively included in the study. The severity of head injury was categorized according to the GCS score ≤8. As initial assessment tools, the PTS, postresuscitation GCS, and PIM 2 scores were calculated for each patient. Outcome was assessed according to Glasgow Outcome Scale on discharge and after 6 months. Results. The study population consisted of 59 children with severe head injury. The group consisted of 37 (62.7%) boys and 22(37.3%) girls; the mean age was 10.6±6.02. The mean GCS, PTS, and PIM 2 scores were 5.9±1.8, 4.8±2.7, and 14.0±19.5, respectively. In terms of overall outcome, 46 (78.0%) patients survived and 13 (22.0%) died.