Effect of bystander CPR initiation prior to the emergency call on ROSC and 30 day survival—An evaluation of 548 emergency calls

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• 作者：Sø ; ren Viereck^a ; ^{viereck.soeren@gmail.com} ; Thea Palsgaard Mø ; ller^a ; Annette Kjæ ; r Ersbø ; ll^b ; Fredrik Folke^a ; Freddy Lippert^a
• 关键词：Out-of-hospital cardiac arrest ; Bystander cardiopulmonary resuscitation ; Medical dispatch
• 刊名：Resuscitation
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：111
• 期：Complete
• 页码：55-61
• 全文大小：949 K
• 卷排序：111

文摘

This study aimed at evaluating if time for initiation of bystander cardiopulmonary resuscitation (CPR) – prior to the emergency call (CPRprior) versus during the emergency call following dispatcher-assisted CPR (CPRduring) – was associated with return of spontaneous circulation (ROSC) and 30-day survival. The secondary aim was to identify predictors of CPRprior.MethodsThis observational study evaluated out-of-hospital cardiac arrests (OHCA) occurring in the Capital Region of Denmark from 01.01.2013 to 31.12.2013. OHCAs were linked to emergency medical dispatch centre records and corresponding emergency calls were evaluated. Multivariable logistic regression analyses were applied to evaluate the association between time for initiation of bystander CPR, ROSC, and 30-day survival. Univariable logistic regression analyses were applied to identify predictors of CPRprior.ResultsThe study included 548 emergency calls for OHCA patients receiving bystander CPR, 34.9% (n = 191) in the CPRprior group and 65.1% (n = 357) in the CPRduring group. Multivariable analyses showed no difference in ROSC (OR = 0.88, 95% CI: 0.56–1.38) or 30-day survival (OR = 1.14, 95% CI: 0.68–1.92) between CPRprior and CPRduring. Predictors positively associated with CPRprior included witnessed OHCA and healthcare professional bystanders. Predictors negatively associated with CPRprior included residential location, solitary bystanders, and bystanders related to the patient.ConclusionsThe majority of bystander CPR (65%) was initiated during the emergency call, following dispatcher-assisted CPR instructions. Whether bystander CPR was initiated prior to emergency call versus during the emergency call following dispatcher-assisted CPR was not associated with ROSC or 30-day survival. Dispatcher-assisted CPR was especially beneficial for the initiation of bystander CPR in residential areas.