Resuscitation
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Comparative Study
Resuscitation of the pregnant patient: What is the effect of patient positioning on inferior vena cava diameter?
Patients in the third trimester of pregnancy presenting to the emergency department (ED) with hypotension are routinely placed in the left lateral tilt (LLT) position to relieve inferior vena cava (IVC) compression from the gravid uterus thereby increasing venous return. However, the relationship between patient position and proximal intrahepatic IVC filling has never assessed directly. This study set out to determine the effect of LLT position on intrahepatic IVC diameter in third trimester patients under real-time visualization with ultrasound. ⋯ IVC ultrasound is feasible in late pregnancy and demonstrates an increase in diameter with LLT positioning. However, a quarter of patients had a decrease in IVC diameter with tilting and, instead, had the largest IVC diameter in the supine position suggesting that uterine compression of the IVC may not occur universally. IVC assessment at the bedside may be a useful adjunct in determining optimal positioning for resuscitation of third trimester patients.
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Comparative Study
Emergency cardio-pulmonary bypass in cardiac arrest: seventeen years of experience.
Emergency cardiopulmonary bypass (E-CPB) is an advanced and rarely used procedure for patients in cardiac arrest that do not regain restoration of spontaneous circulation with standard resuscitation methods. The feasibility, safety and outcome of the intervention with E-CPB in cardiac arrest situations at our department have been evaluated. ⋯ E-CPB for cardiac arrest is feasible and safe. In this seemingly desperate patient population after prolonged cardiac arrest, we observed a high survival rate of 15%. E-CPB is a meaningful treatment option, which should be considered more often and earlier.
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Randomized Controlled Trial Multicenter Study Comparative Study
Development and validation of a multiple choice examination assessing cognitive and behavioural knowledge of pediatric resuscitation: a report from the EXPRESS pediatric research collaborative.
Assessing the knowledge of Pediatric Advanced Life Support (PALS) based learning objectives of medical trainees is an important evaluation component for both residency programs and for research studies. In this study, a multiple-choice question (MCQ) examination was developed and validated for use in a larger pediatric simulation resuscitation study (EXPRESS study). ⋯ This short MCQ examination demonstrated reasonable reliability and construct validity. It may be useful to assess pediatric resuscitation knowledge in future studies or courses.
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Randomized Controlled Trial Multicenter Study Comparative Study
Therapeutic hypothermia and vasopressor dependency after cardiac arrest.
Clinical trials of therapeutic hypothermia (TH) after cardiac arrest excluded patients with persistent hemodynamic instability after return of spontaneous circulation (ROSC), and thus equipoise may exist regarding use of TH in these patients. Our objective was to determine if TH is associated with worsening hemodynamic instability among patients who are vasopressor-dependent after ROSC. ⋯ In patients with vasopressor-dependency after cardiac arrest, the induction of hypothermia was not associated with a decrease in mean arterial pressure or increase in vasopressor requirement.
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Randomized Controlled Trial Comparative Study
A comparison of rectilinear and truncated exponential biphasic waveforms in elective cardioversion of atrial fibrillation: a prospective randomized controlled trial.
Several different biphasic waveforms are used clinically, but few studies have compared their efficacy. The two main waveforms are the biphasic rectilinear (BR) and biphasic truncated exponential (BTE) waveforms, both of which have important differences, particularly at the extremes of transthoracic impedance. ⋯ BR and BTE waveforms show similar high efficacy in the elective cardioversion of atrial fibrillation.