• H Ueta, H Tanaka, S Tanaka, R Sagisaka, and H Takyu.
• Department of EMS System, Graduate School, Kokushikan University. Electronic address: hueta@kokushikn.ac.jp.
• Am J Emerg Med. 2017 May 1; 35 (5): 676-680.

ObjectiveThis research is to study if quick administration of adrenaline on OHCA prior to hospitalization has an effect on improving CPC1-2 at one month.MethodologyA total 13,326 cases were extracted from 2011 to 2014 Utstein data for this retrospective cohort study, also, EMT reached the patients within 16min after 119 called and adrenaline was then administered within 22min of after contact.Patients Divided Into Two GroupsPatients were contacted within 8min of the 119 call (n=6956), and were contacted between 8 and 16min after the call (n=6370). Further divided into groups in which the adrenaline was administered within/without 10min after contact. Primary outcome was the rate of a good prognosis for cerebral performance (CPC1-2) at 1 month and secondary outcome was the return of spontaneous circulation (ROSC) rate.ResultsThe odds ratio of the CPC1-2 at 1month by the EMS reached within 8min after 119 call and then adrenaline administered within 10min was 2.12 (1.54-2.92).Those reached between 8 and 16min was 2.66 (1.97-3.59). However, the ROSC rate was 2.00 (1.79-2.25) for those reached within 8min and also 2.00 (1.79-2.25) for those reached between 8min and 16min.ConsiderationsIn cases of OHCA, it appears that the CPC1-2 rate after 1month can be improved even in cases where the victim is reached >8min after the 119 call, as long as the victim is reached within 16min and emergency responders administer the adrenaline as quickly as possible.Copyright © 2017 Elsevier Inc. All rights reserved.

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