Background:
Resuscitation guidelines have been improved every five years using ILCOR international consensus and outcomes for out-of-hospital cardiac arrest improved. However, it remained unknown whether the outcome of in-hospital cardiac arrest has improved. The purpose of this research is to compare the outcomes of multicenter registrations in Japan and to consider the role of rapid response system (RRS).
Methods:
We compared the two multicenter prospective registrations for adult in-hospital cardiac arrest conducted in Japan. We compared the outcome of Japanese Registry of CPR (J-RCPR,12 hospitals) conducted in the "Guideline 2005" era and Japanese Registry for Survey Of in-hospital Resuscitation Trial (J-RESORT,8 hospitals) conducted in the "Guidelines 2010" era. We searched the number of hospitals participating in the rapid response system multicenter collaborative research (RRS) conducted in Japan.
Results:
J-RCPR had 491 cases, mean age 71 ± 15 years old, male 63%(311/491), J-RESORT 284 cases, mean age 72 ± 17 years old, male 68%(193/284). ROSC rate was 64.7% (318/491), 77.5% (220/284), respectively (p<0.05). The survival rate after 24 hours was 49.8% (245/491), 50.7% (144/284) (NS), the survival rate after 30 days was 27.8% (137/491), 33.1% (94/284) (NS), and the favorable neurological outcome rate (CPC 1 or CPC 2) was 21.4% (105/491), 22.9% (65/284) (NS), respectively. The proportion of witnessed cardiac arrest was 77.2% (379/491), 81.7% (232/284) (NS), the location of incidence in general wards was 54.0% (265/491), 46.1% (131/284) (NS), and the shockable rhythm was 28.1% (138/491), 22.5% (64/284) (NS), respectively. In both registries, the median interval from the occurrence of cardiac arrest to the initiation of resuscitation was 0 min. The proportion of participating hospitals to RRS was only 6 facilities in 2013 and increased to 41 facilities in 2016, but still less than 1% of the total number of hospitals in Japan.
Conclusion:
This study showed no improvement in the outcome of in-hospital cardiac arrest and very few hospitals using RRS during the past 10 years. To improve the outcome of the in-hospital cardiac arrest, it is necessary to investigate the nation-wide status of in-hospital cardiac arrest and the effectiveness of RRS.