Oving Iris, de Graaf Corina, Karlsson Lena, Jonsson Martin, Kramer-Johansen Jo, Berglund Ellinor, Hulleman Michiel, Beesems Stefanie G, Koster Rudolph W, Olasveengen Theresa M, Ringh Mattias, Claessen Andreas, Lippert Freddy, Hollenberg Jacob, Folke Fredrik, Tan Hanno L, Blom Marieke T
Department of Clinical and Experimental Cardiology, Amsterdam UMC, Academic Medical Centre, University of Amsterdam, Amsterdam, The Netherlands.
Copenhagen Emergency Medical Services, and Herlev Gentofte University Hospital, Copenhagen, Denmark.
Resuscitation. 2020 Jun;151:67-74. doi: 10.1016/j.resuscitation.2020.03.014. Epub 2020 Apr 8.
Prior research suggests that the proportion of a shockable initial rhythm in out-of-hospital cardiac arrest (OHCA) declined during the last decades. This study aims to investigate if this decline is still ongoing and explore the relationship between location of OHCA and proportion of a shockable initial rhythm as initial rhythm.
We calculated the proportion of patients with a shockable initial rhythm between 2006-2015 using pooled data from the COSTA-group (Copenhagen, Oslo, Stockholm, Amsterdam). Analyses were stratified according to location of OHCA (residential vs. public).
A total of 19,054 OHCA cases were included. Overall, the total proportion of cases with a shockable initial rhythm decreased from 42% to 37% (P < 0.01) from 2006 to 2015. When stratified according to location, the proportion of cases with a shockable initial rhythm decreased for OHCAs at a residential location (34% to 27%; P = 0.03), while the proportion of a shockable initial rhythm was stable among OHCAs in public locations (59%-57%; P = 0.2). During the last years of the study period (2011-2015), the overall proportion of a shockable initial rhythm remained stable (38%-37%; P = 0.45); this was observed for both residential and public OHCA.
We found a decline in the proportion of patients with a shockable initial rhythm in OHCAs at a residential location; this decline levelled off during the second half of the study period (2011-2015). In public locations, we observed no decline in shockable initial rhythm over time.
先前的研究表明，在过去几十年中，院外心脏骤停（OHCA）时可电击初始心律的比例有所下降。本研究旨在调查这种下降趋势是否仍在持续，并探讨OHCA发生地点与可电击初始心律比例之间的关系。
我们使用来自COSTA组（哥本哈根、奥斯陆、斯德哥尔摩、阿姆斯特丹）的汇总数据，计算了2006年至2015年间可电击初始心律患者的比例。分析根据OHCA发生地点（住宅与公共场所）进行分层。
共纳入19054例OHCA病例。总体而言，2006年至2015年期间，可电击初始心律病例的总比例从42%降至37%（P<0.01）。按地点分层时，住宅地点OHCA中可电击初始心律病例的比例下降（从34%降至27%；P=0.03），而公共场所OHCA中可电击初始心律的比例保持稳定（59%-57%；P=0.2）。在研究期的最后几年（2011-2015年），可电击初始心律的总体比例保持稳定（38%-37%；P=0.45）；住宅和公共场所的OHCA均观察到这一情况。
我们发现住宅地点OHCA中可电击初始心律患者的比例有所下降；在研究期后半段（2011-2015年），这种下降趋于平稳。在公共场所，我们未观察到可电击初始心律随时间下降。
