Outcomes after asystole events occurring during wearable defibrillator-cardioverter use
Outcomes after asystole events occurring during wearable defibrillator-cardioverter use作者机构：Department of Cardiology University of Pennsylvania Perelman School of Medicine ZOLL
出 版 物：《World Journal of Cardiology》 (世界心脏病学杂志（英文版）（电子版）)
年 卷 期：2018年第10卷第4期
页 面：21-25页
主 题：Asystole Bradycardia Cardiac arrest Defibrillator LifeVest
摘 要：AIM To examine whether wearable cardioverter defibrillator(WCD) alarms for asystole improve patient outcomes and *** All asystole episodes recorded by the WCD in 2013 were retrospectively analyzed from a database of device and medical record documentation and customer call reports. Events were classified as asystole episodes if initial presenting arrhythmia was asystole( 10 beats/minor ≥ 5 s pause). Survival was defined as recovery at the scene or arrival to a medical facility alive, or not requiring immediate medical attention. Episodes occurring in hospitals, nursing homes, or ambulances were considered to be under medical care. Serious asystole episodes were defined as resulting in unconsciousness, hospital transfer, or *** Of the total 51933 patients having worn the WCD in 2013, there were 257 patients(0.5%) who had asystole episodes and comprised the study cohort. Among the 257 patients(74% male, median age 69 years), there were 264 asystole episodes. Overall patient survival was 42%. Most asystoles were considered serious(n = 201 in 201 patients, 76%), with a 26% survival rate. All 56 patients with non-serious asystole episodes survived. Being under medical care was associated with worse survival of serious asystoles. Among acute survivors, 20% later died during WCD use(a median 4 days post asystole episode). Of the 86 living patients at the end of WCD use period, 48(56%) received ICD/pacemaker and 17(20%) improved their *** Survival rates after asystole in patients with WCD are higher than historically reported survival rates. Those under medical care at time of asystole exhibited lower survival.
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