Aim There is well known on elderly patients decreased good neurological outcome after resuscitation attempt. Aim: The aim of this study was to determine the relationship between the age and post-out-of-hospital cardiac arrest (OHCA) outcomes.
Method Nationwide retrospective cohort study. Settings; A total 1,176,363 OHCA patients (age&x2267;15 years) who were registered in the Japanese Utstein style registry from 2005 to 2014. The primary end point was return of spontaneous circulation (ROSC). The secondary endpoint was 1 month survival with favourable neurological outcomes (cerebral performance categories (CPC) scale; CPC 1–2). In the analysis, risk ratio (RR) and risk difference (RD) with age were calculated and evaluated.
Results Altogether, 2 96 097 cases (25.2%) were included in the study. According to the RR, we compared the ROSC and age of the patients get PAD at the scene or not. More than 90 years old age wasn’t made any differences (RR=1.55 (0.92–2.61)). And we also compared the CPC1–2. More than 86 years old age wasn’t made any differences. (RR=2.18 (0.92–5.16)). On the other hand, we compared the RD and got result of the ROSC was more than 72 years old and the CPC1–2 was 71 years old decreased the effectiveness and at the same age of RR made no differences.
Conclusion In Japan, some elderly patients could survive from OHCA with PAD. However, our result suggests that PAD is effective of coming back to the society in patients under 86 years of age.
Conflict of interest None
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