Abstract | BACKGROUND: METHODS AND RESULTS: This is a prospective observational cohort study of adult patients from the Resuscitation Outcomes Consortium Cardiac Arrest Epistry with confirmed ventricular fibrillation or ventricular tachycardia, no defibrillation before emergency medical services arrival, electronically recorded cardiopulmonary resuscitation before the first shock, and a confirmed outcome. Patients were followed up to discharge from the hospital or death. Of the 506 cases, the mean age was 64 years, 80% were male, 71% were witnessed by a bystander, 51% received bystander cardiopulmonary resuscitation, 34% occurred in a public location, and 23% survived. After adjustment for age, gender, location, bystander cardiopulmonary resuscitation, bystander witness status, and response time, the odds ratios of surviving to hospital discharge in the 2 highest categories of chest compression fraction compared with the reference category were 3.01 (95% confidence interval 1.37 to 6.58) and 2.33 (95% confidence interval 0.96 to 5.63). The estimated adjusted linear effect on odds ratio of survival for a 10% change in chest compression fraction was 1.11 (95% confidence interval 1.01 to 1.21). CONCLUSIONS:
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Authors | Jim Christenson, Douglas Andrusiek, Siobhan Everson-Stewart, Peter Kudenchuk, David Hostler, Judy Powell, Clifton W Callaway, Dan Bishop, Christian Vaillancourt, Dan Davis, Tom P Aufderheide, Ahamed Idris, John A Stouffer, Ian Stiell, Robert Berg, Resuscitation Outcomes Consortium Investigators |
Journal | Circulation
(Circulation)
Vol. 120
Issue 13
Pg. 1241-7
(Sep 29 2009)
ISSN: 1524-4539 [Electronic] United States |
PMID | 19752324
(Publication Type: Journal Article, Multicenter Study, Research Support, N.I.H., Extramural, Research Support, Non-U.S. Gov't)
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Topics |
- Aged
- Cardiopulmonary Resuscitation
(methods, standards, statistics & numerical data)
- Cohort Studies
- Databases, Factual
- Electric Countershock
(statistics & numerical data)
- Emergency Medical Services
(statistics & numerical data)
- Female
- Heart Arrest
(mortality, therapy)
- Humans
- Male
- Middle Aged
- Predictive Value of Tests
- Tachycardia, Ventricular
(mortality, therapy)
- Ventricular Fibrillation
(mortality, therapy)
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