Circadian, weekly, and seasonal mortality variations in out-of-hospital cardiac arrest in Japan: analysis from AMI-Kyoto Multicenter Risk Study database
Circadian, weekly, and seasonal mortality variations in out-of-hospital cardiac arrest in Japan: analysis from AMI-Kyoto Multicenter Risk Study database
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DOI：
10.1016/j.ajem.2010.06.018
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发表时间：
2011-11-01
影响因子：
3.6
通讯作者：
Matsubara, Hiroaki
中科院分区：
文献类型：
--
作者：
Nakanishi, Naohiko;Nishizawa, Shinya;Matsubara, Hiroaki
背景：一些研究报道了院外心脏骤停（OHCA）发生率的昼夜、每周和季节变化。然而，OHCA的死亡率的变化是不为人所知的。方法和结果：我们调查了1396例连续OHCA与心脏病因之间的2004年10月和2008年9月。OHCA在清晨和傍晚有2个发生高峰。有一个每周的模式，周一的发病率增加。我们发现一个显着的季节性变化的事件的频率，在冬季最大。有一个趋势，在最温暖的3个月内死亡率降低，特别是在一个亚组的室颤/无脉性室性心动过速与arrest witnessed.Conclusion：目前的分析表明，昼夜节律，每周和季节性变化的发生，并在OHCA的死亡率的季节性变化。体温的变化可能影响OHCA的严重程度和心肺复苏的成功率。(C)2011 Elsevier Inc. All rights reserved.
Background: Several studies have reported circadian, weekly, and seasonal variations in the rates of out-of-hospital cardiac arrest (OHCA). However, variations in the mortality of OHCA are not well known.Methods and Results: We investigated the 1396 consecutive cases of OHCA with cardiac etiology between October 2004 and September 2008. There were 2 peaks in the occurrence of OHCA in early morning and late evening. There was a weekly pattern with an increased incidence on Mondays. We found a significant seasonal variation in the frequency of events, with a maximum during winter. There was a trend of reduced mortality in warmest 3 months, especially among a subgroup of ventricular fibrillation/pulseless ventricular tachycardia with arrest witnessed.Conclusion: The present analyses demonstrated circadian, weekly and seasonal variations in the occurrence, and a seasonal variation in mortality in OHCA. Changes in temperature might influence the severity of OHCA and change the rate of success of cardiopulmonary resuscitation. (C) 2011 Elsevier Inc. All rights reserved.