• Hideharu Tanaka, Ong Marcus E H MEH Department of Emergency Medicine, Singapore General Hospital, and the Health Services and Systems Research, Duke-NUS Medical School, Singapore, Singapo, Fahad J Siddiqui, Matthew H M Ma, Hiroshi Kaneko, Lee Kyung Won KW Department of Emergency Medicine, College of Medicine, Seoul National University, Seoul, Korea., Kentaro Kajino, Chih-Hao Lin, Han Nee Gan, Pairoj Khruekarnchana, Omer Alsakaf, Nik H Rahman, Nausheen E Doctor, Pryseley Assam, Sang Do Shin, and PAROS Clinical Research Network.
• Department of Emergency Systems, Graduate School of Sport Systems, Kokushikan University, Tokyo, Japan.
• Ann Emerg Med. 2018 May 1; 71 (5): 608-617.e15.

Study ObjectiveThe study aims to identify modifiable factors associated with improved out-of-hospital cardiac arrest survival among communities in the Pan-Asian Resuscitation Outcomes Study (PAROS) Clinical Research Network: Japan, Singapore, South Korea, Malaysia, Taiwan, Thailand, and the United Arab Emirates (Dubai).MethodsThis was a prospective, international, multicenter cohort study of out-of-hospital cardiac arrest in the Asia-Pacific. Arrests caused by trauma, patients who were not transported by emergency medical services (EMS), and pediatric out-of-hospital cardiac arrest cases (<18 years) were excluded from the analysis. Modifiable out-of-hospital factors (bystander cardiopulmonary resuscitation [CPR] and defibrillation, out-of-hospital defibrillation, advanced airway, and drug administration) were compared for all out-of-hospital cardiac arrest patients presenting to EMS and participating hospitals. The primary outcome measure was survival to hospital discharge or 30 days of hospitalization (if not discharged). We used multilevel mixed-effects logistic regression models to identify factors independently associated with out-of-hospital cardiac arrest survival, accounting for clustering within each community.ResultsOf 66,780 out-of-hospital cardiac arrest cases reported between January 2009 and December 2012, we included 56,765 in the analysis. In the adjusted model, modifiable factors associated with improved out-of-hospital cardiac arrest outcomes included bystander CPR (odds ratio [OR] 1.43; 95% confidence interval [CI] 1.31 to 1.55), response time less than or equal to 8 minutes (OR 1.52; 95% CI 1.35 to 1.71), and out-of-hospital defibrillation (OR 2.31; 95% CI 1.96 to 2.72). Out-of-hospital advanced airway (OR 0.73; 95% CI 0.67 to 0.80) was negatively associated with out-of-hospital cardiac arrest survival.ConclusionIn the PAROS cohort, bystander CPR, out-of-hospital defibrillation, and response time less than or equal to 8 minutes were positively associated with increased out-of-hospital cardiac arrest survival, whereas out-of-hospital advanced airway was associated with decreased out-of-hospital cardiac arrest survival. Developing EMS systems should focus on basic life support interventions in out-of-hospital cardiac arrest resuscitation.Copyright © 2017 American College of Emergency Physicians. Published by Elsevier Inc. All rights reserved.

23 keywords...

hide…