| 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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MedLine Citation:
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PMID: 20708890 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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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. |
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Authors:
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Naohiko Nakanishi; Shinya Nishizawa; Yohei Kitamura; Takeshi Nakamura; Akiyoshi Matsumuro; Takahisa Sawada; Hiroaki Matsubara |
Publication Detail:
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Type: Journal Article Date: 2010-08-13 |
Journal Detail:
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Title: The American journal of emergency medicine Volume: 29 ISSN: 1532-8171 ISO Abbreviation: Am J Emerg Med Publication Date: 2011 Nov |
Date Detail:
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Created Date: 2011-11-14 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8309942 Medline TA: Am J Emerg Med Country: United States |
Other Details:
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Languages: eng Pagination: 1037-43 Citation Subset: IM |
Copyright Information:
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Copyright © 2011 Elsevier Inc. All rights reserved. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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