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タイトル: | Continuous Improvements in "Chain of Survival" Increased Survival After Out-of-Hospital Cardiac Arrests : A Large-Scale Population-Based Study |
著者: | Iwami, Taku ![]() ![]() ![]() Nichol, Graham Hiraide, Atsushi Hayashi, Yasuyuki Nishiuchi, Tatsuya Kajino, Kentaro Morita, Hiroshi Yukioka, Hidekazu Ikeuchi, Hisashi Sugimoto, Hisashi Nonogi, Hiroshi Kawamura, Takashi ![]() |
著者名の別形: | 石見, 拓 |
キーワード: | cardiopulmonary resuscitation heart arrest death, sudden epidemiology ventricular fibrillation |
発行日: | 10-Feb-2009 |
出版者: | American Heart Association |
誌名: | Circulation |
巻: | 119 |
号: | 5 |
開始ページ: | 728 |
終了ページ: | 734 |
抄録: | [Background] The impact of ongoing efforts to improve the "chain of survival" for out-of-hospital cardiac arrest (OHCA) is unclear. The objective of this study was to evaluate the incremental effect of changes in prehospital emergency care on survival after OHCA. [Methods and Results] This prospective, population-based observational study involved consecutive patients with OHCA from May 1998 through December 2006. The primary outcome measure was 1-month survival with favorable neurological outcome. Multiple logistic regression analysis was used to assess factors that were potentially associated with better neurological outcome. Among 42 873 resuscitation-attempted adult OHCAs, 8782 bystander-witnessed arrests of presumed cardiac origin were analyzed. The median time interval from collapse to call for medical help, first cardiopulmonary resuscitation, and first shock shortened from 4 (interquartile range [IQR] 2 to 11) to 2 (IQR 1 to 5) minutes, from 9 (IQR 5 to 13) to 7 (IQR 3 to 11) minutes, and from 19 (IQR 13 to 22) to 9 (IQR 7 to 12) minutes, respectively. Neurologically intact 1-month survival after witnessed ventricular fibrillation increased from 6% (6/96) to 16% (49/297; P<0.001). Among all witnessed OHCAs, earlier cardiopulmonary resuscitation (odds ratio per minute 0.89, 95% confidence interval 0.85 to 0.93) and earlier intubation (odds ratio per minute 0.96, 95% confidence interval 0.94 to 0.99) were associated with better neurological outcome. For ventricular fibrillation, only earlier shock was associated with better outcome (odds ratio 0.84, 95% confidence interval 0.80 to 0.88). [Conclusions] Data from a large, population-based cohort demonstrate a continuous increase in OHCA survival with improvement in the chain of survival. The incremental benefit of early advanced care on OHCA survival is also suggested. |
著作権等: | © 2009 American Heart Association, Inc. |
URI: | http://hdl.handle.net/2433/187288 |
DOI(出版社版): | 10.1161/CIRCULATIONAHA.108.802058 |
PubMed ID: | 19171854 |
出現コレクション: | 学術雑誌掲載論文等 |
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