Resuscitation
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In the absence of identified risk factors, 7% of term newly borns require PPV-ETT (positive pressure ventilation and/or endotracheal intubation). Factors increasing need for resuscitation, and therefore for individuals with advanced resuscitation skills, require further evaluation. ⋯ Given the baseline risk (22%), factors that increase need for resuscitation in a tertiary centre may not alter the practice of the NRT attending all "at-risk" deliveries, with the exception of ElCS.
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To review the epidemiology, pathophysiology, treatment and prognostication in relation to the post-cardiac arrest syndrome. ⋯ A growing body of knowledge suggests that the individual components of the post-cardiac arrest syndrome are potentially treatable.
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Randomized Controlled Trial Comparative Study
The Medical Emergency Team System and not-for-resuscitation orders: results from the MERIT study.
To examine NFR orders in relation to adverse events and emergency team calls in hospitals with or without a Medical Emergency Team (MET) system during the MERIT study. ⋯ In a cohort of Australian hospitals, most deaths occurred in patients with a previously documented NFR order but NFR orders were uncommon before cardiac arrest calls or unplanned ICU admissions. During the conduct of a cluster randomised controlled trial, more NFR orders were issued by emergency teams in those hospitals that implemented a MET system than in control hospitals. MET allocation, teaching hospital status, number of hospital beds and metropolitan location could only explain less than 50% of variance in NFR orders.
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After return of spontaneous circulation (ROSC) from cardiac arrest, profound myocardial stunning and systemic inflammation may cause hemodynamic alterations; however, the prevalence of post-ROSC hemodynamic instability and the strength of association with outcome have not been established. We tested the hypothesis that exposure to arterial hypotension after ROSC occurs commonly (>50%) and is an independent predictor of death. ⋯ Early exposure to arterial hypotension after ROSC was common and an independent predictor of death. These data suggest that post-ROSC hypotension could potentially represent a therapeutic target in post-cardiac arrest care.
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Comparative Study
Rhythmic abdominal compression CPR ventilates without supplemental breaths and provides effective blood circulation.
Standard chest-compression CPR has an out-of-hospital resuscitation rate of less than 10% and can result in rib fractures or mouth-to-mouth transfer of infection. Recently, we introduced a new CPR method that utilizes only rhythmic abdominal compressions (OAC-CPR). The present study compares ventilation and hemodynamics produced by chest and abdominal compression CPR. ⋯ OAC-CPR generated ventilatory volumes significantly greater than the dead space and produced equivalent, or larger, CPP than with chest compressions. Thus, OAC-CPR ventilates a subject, eliminating the need for mouth-to-mouth breathing, and effectively circulates blood during VF without breaking ribs. Furthermore, this technique is simple to perform, can be administered by a single rescuer, and should reduce bystander reluctance to administer CPR.