Evaluation of Related Factors and the Outcome in Cardiac Arrest Resuscitation at Thammasat Emergency Department
Kumpol Amnuaypattanapon MD* Umaporn Udomsubpayakul MSc**
Affiliation : * Department of Emergency Medicine, Faculty of Medicine, Thammasat University, Pathumthani, Thailand ** Section for Clinical Epidemiology and Biostatistics of Research Center, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
Objective : In the present study, we aimed to define the factors contributing to patient survival after treatment by cardiopulmonary
resuscitation (CPR) following cardiac arrest.
Material and Method: Retrospective analysis was performed on cardiac arrest patients (n = 138) who had CPR in the
emergency department (ED) at Thammasat University hospital from 2007-2009. Logistic regression was used to analyze
factors that related to the sustained return of spontaneous circulation (ROSC) for 20 minutes, survival until discharge, and
survival up to 1 month post discharge.
Results : The sustained ROSC was 22.5%, survival to discharge 5.6%, and survival from discharge to 1 month 3.6%.
Significant factors related to sustained ROSC was the location of cardiac arrest, the cause of arrest, shockable rhythm with
defibrillation, the time until chest compression, and CPR duration. The factor influencing survival to discharge was chest
compression performed within 15 minutes after cardiac arrest (p = 0.048). No factor however could be attributed to
survivability up to 1 month following discharge.
Conclusion : Our findings attribute six factors associated to ROSC including the location of arrest, the cause of cardiac
arrest, initial cardiac rhythm, shockable rhythm with defibrillation, the time until chest compression and CPR duration.
Statistically, resuscitation performed within 15 minutes of cardiac arrest increases the survivability of patients until discharge.
However, no factors could be related to the percentage of patients surviving up to 1 month post discharge.
Keywords : Cardiopulmonary resuscitation, Outcomes, Factors
