Background: Few data exist on the likelihood of surviving sudden cardiac arrest in the mountains. The aim of this study was to analyze the epidemiology and outcomes of patients suffering sudden cardiac arrest and undergoing cardiopulmonary resuscitation (CPR) with automated external defibrillator (AED) in the Austrian mountains. Materials and Methods: We analyzed all cardiac arrest cases in the Austrian mountains reported in the nationwide Austrian Alpine Police database from October 26, 2005, to December 31, 2015. To obtain information on outcomes, these patient data were manually merged with patient data from the main Austrian referral center for mountain emergencies, Innsbruck Medical University Hospital. Results: Overall, 781 cases of sudden cardiac arrest in the Austrian mountains were recorded. In 136 cases (17%), CPR with AED was attempted. The most frequent activities at the time of sudden cardiac arrest were hiking (n = 63, 46%) and skiing or snowboarding (n = 44, 32%). In the nationwide Austrian Alpine Police database, only 4 (3%) patients survived, whereas in the Innsbruck Medical University Hospital database, there were seven survivors who received CPR and AED. All survivors had received immediate CPR with an AED. Five patients had good neurological outcome (cerebral performance category 1-2). Conclusions: In the Austrian mountains, CPR was attempted in less than 20% of sudden cardiac arrest cases. The few that survived had received immediate CPR with an AED. To better understand the circumstances and outcome of sudden cardiac arrest in the mountains, out-of hospital and in-hospital data should be linked.

中文翻译：

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奥地利山区使用自动体外除颤器进行的突然心脏骤停和心肺复苏：一项回顾性研究。

背景：关于山区突发性心脏骤停存活的可能性的数据很少。这项研究的目的是分析奥地利山区自动心脏除颤器（AED）引起的心脏骤停和进行心肺复苏（CPR）的患者的流行病学和结局。材料和方法：我们分析了2005年10月26日至2015年12月31日在奥地利阿尔卑斯山全国警察数据库中报告的奥地利山区的所有心脏骤停病例。为了获得有关结局的信息，将这些患者数据与来自因斯布鲁克医科大学附属医院是奥地利主要的紧急山区转诊中心。结果：总共记录到781例奥地利山区的心脏骤停。136例（17％）患者尝试了AED进行心肺复苏。心脏骤停时最频繁的活动是远足（n = 63，46％）和滑雪或单板滑雪（n = 44，32％）。在全国性的奥地利高山警察数据库中，只有4名（3％）患者幸存，而在因斯布鲁克医科大学医院数据库中，有7名幸存者接受了心肺复苏术和AED。所有幸存者均已接受AED立即接受CPR。五名患者的神经系统结局良好（脑功能分类为1-2）。结论：在奥地利山区，不到20％的心脏骤停病例尝试进行CPR。幸存下来的少数人已通过AED立即接受了CPR。为了更好地了解山区的突发性心脏骤停的情况和结果，应该将医院外和医院内的数据联系起来。