In:
Journal of the American Heart Association, Ovid Technologies (Wolters Kluwer Health), Vol. 3, No. 2 ( 2014-03-24)
Abstract:
The strategy to place public‐access automated external defibrillators ( AED s) has not yet been established in real settings. Methods and Results This, prospective, population‐based observational study in Osaka, Japan, included consecutive out‐of‐hospital cardiac arrest ( OHCA ) patients with resuscitation attempts during 7 years, from January 2005 through December 2011. The trends in the proportion of public‐access AED use and 1‐month survival with neurologically favorable outcome were evaluated by location. Factors associated with neurologically favorable outcome (defined as cerebral performance category 1 or 2) after ventricular fibrillation were also assessed using multiple logistic regression analysis. A total of 9453 bystander‐witnessed OHCA s of cardiac origin were documented and 894 (9.5%) of them occurred at public places. The proportion of public‐access AED use significantly increased from 0.0% (0/20) in 2005 to 41.2% (7/17) in 2011 at railway stations and from 0.0% (0/7) to 56.5% (13/23) at sports facilities. Mean time from collapse to shock was 5.0 minutes among those who received shocks with public‐access AED s. The proportion of neurologically favorable outcome was 28.0% (33/118) at railway stations, 51.6% (48/93) at sports facilities, 23.3% (20/86) in public buildings, and 41.9% (13/31) in schools. In multivariate analysis, early defibrillation, irrespective of bystander or emergency medical service (EMS) personnel, was significantly associated with neurologically favorable outcome (adjusted odds ratio for 1‐minute increment, 0.89; 95% confidence interval, 0.87 to 0.92). Conclusions This large, population‐based OHCA registry demonstrated that earlier shock, irrespective the shock provider (bystander or EMS personnel), contributed to improving outcome, and a public‐access defibrillation program was successfully implemented so that shocks with public‐access AED s were delivered to over 40% of bystander‐witnessed OHCA s and time to shock was shortened in some kinds of public places.
Type of Medium:
Online Resource
ISSN:
2047-9980
DOI:
10.1161/JAHA.113.000533
Language:
English
Publisher:
Ovid Technologies (Wolters Kluwer Health)
Publication Date:
2014
detail.hit.zdb_id:
2653953-6
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