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Purpose@#We investigated the association between defoliant exposure and survival to discharge after out-of-hospital cardiac arrest. @*Methods@#This is a retrospective case-control study based on the cardiopulmonary resuscitation (CPR) registry. The electronic medical records of out-of-hospital cardiac arrest victims from 6/9/2008 to 12/31/2016 were analyzed statistically. The case patients group had a history of defoliant exposure while the control group did not. Among the 401 victims studied, a total of 110 patients were male out-of-hospital cardiac arrest patients. Baseline characteristics and the parameters involved in cardiac arrest were analyzed and compared between the two groups after propensity score matching. The primary outcome was survival to discharge, and secondary outcomes were sustained return of spontaneous circulation (ROSC) and survival to admission. @*Results@#After propensity score matching a total of 50 patients (case=25, control=25) were analyzed. Primary outcome (survival to discharge) was not significantly different between case and control groups [(OR, 1.759; 95% C.I., 0.491-6.309) and (OR, 1.842;95% C.I., 0.515-6.593), respectively]. In the subgroup analysis, there were also no significant differences between the control group and subgroups in primary and secondary outcomes according to defoliant exposure severity. @*Conclusion@#There is no statistically significant association between defoliant exposure and survival of out-of-hospital cardiac arrest.
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PURPOSE: The purpose of this study was to determine the feasibility of the implementation of prehospital advanced life support programs and share in-hospital medical direction center operation experience. METHODS: From Oct. to Dec. 2008, twenty fire safety centers in Seoul metropolitan city took part in a pilot implementation of advanced life support programs with medical services as follow: prehospital 12 lead ECG transmission for patients with chest pain, a prehospital CPAP (continuous positive airway pressure) program for patients with dyspnea, a prehospital stroke scale application for patients with neurologic problems, and real-time audio-visual information transmission for patients with traumatic injuries. RESULTS: A total of 6,741 patients were transported to hospitals by emergency response ambulances to twenty five different safety centers. Of the total number of patients, 304 received advanced life support management. The prehospital use of 12 lead ECG transmission was 57.89%, real-time ECG was 27.45%, continuous positive airway pressure was 20.60%, stroke scale was 25%, and real-time audio-visual information was 5.98%. A Delphi survey using a panel which was expert in prehospital implementation of advanced life support programs concluded that prehospital ECG transmission and stroke scale programs should be implemented. However, they decided against implementation of the continuous positive airway pressure and real-time audio-visual information programs. CONCLUSION: Overall, the feasibility of implementation of a prehospital conventional 12 lead ECG program was good and the Delphi survey concurred that the ECG transmission and prehospital stroke scale programs should be implemented.
