Epidemiology and outcomes from non-traumatic out-of-hospital cardiac arrest in Korea: A nationwide observational study☆
Received 30 August 2009; received in revised form 15 January 2010; accepted 3 February 2010. published online 04 June 2010.
Abstract
Objectives
We aimed to describe the epidemiological features and to determine the predictors for survival to discharge of non-traumatic out-of-hospital cardiac arrest (OHCA) in Korea.
Subjects and methods
A nationwide Utstein style OHCA database (2006–2007) was constructed from ambulance records and hospital medical record review. Cases were enrolled when they were non-traumatic OHCA with presumed cardiac aetiology. Using the population census (2005), we calculated age–gender standardized incidence rates (SIR) and mortality (SMR). We modelled a multivariate logistic regression analysis to determine the effect of risk factors on hospital outcomes.
Results
The total number of EMS-assessed non-traumatic OHCA patients was 19045. The SIR was 20.9 (2006) and 22.2 (2007) per 100000 and survival-to-discharge rate was 2.3% for EMS-assessed non-traumatic OHCA, and was 3.5% for the resuscitation-attempted group. From a multivariate logistic regression analysis, witnessed arrest, and shorter basic life support (BLS) and EMS intervals turned out to be significant predictors of good outcome in the resuscitation-attempted group.
Conclusion
From a nationwide OHCA cohort, the incidence of EMS-assessed non-traumatic OHCA was found to be low. Survival-to-discharge rate in the resuscitation-attempted group was 3.5%, which was significantly associated with witnessed arrest, and shorter BLS and EMS intervals.
aCenter for Education and Training of EMS and Rescue, Seoul Fire Academy, Seoul, Republic of Korea
bDepartment of Emergency Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
cDepartment of Emergency Medicine, Seoguipo Medical Center, Cheju, Republic of Korea
dDepartment of Emergency Medicine, Seoul National University Boramae Medical Center, Seoul, Republic of Korea
eDepartment of Epidemiology, Seoul National University School of Public Health, Seoul, Republic of Korea
fDepartment of Emergency Medicine, Singapore General Hospital, Singapore
Corresponding author at: Department of Emergency Medicine, Seoul National University College of Medicine, 101 Daehakro, Jongno-Gu, Seoul 110-744, Republic of Korea. Tel.: +82 2 2072 3257; fax: +82 2 741 7855.
ABSTRACT