Cardiac arrest & resuscitation

Temporal Trends in Outcomes After Out-of-Hospital Cardiac Arrest Transported to Critical Care Medical Centers in Japan, 2014–2022: A Nationwide Retrospective Observational Study

Crit Care MedPublished Retrospective cohort study

Authors' conclusion

Outcomes among OHCA patients transported to CCMCs remained stable until 2019 but declined during the COVID-19 pandemic period.

Study context

Population
Adults (≥ 18 yr) with nontraumatic out-of-hospital cardiac arrest (OHCA) transported to critical care medical centers (CCMCs) in Japan with Utstein-style prehospital data, Japanese Association for Acute Medicine OHCA (JAAM-OHCA) registry, June 2014–December 2022
Participants
61,725 eligible patients
Exposure
Calendar periods 2017-2019 and 2020-2022 vs 2014-2016
Outcome
Favorable neurologic outcome
Methodological detailsnationwide multicentre registry
  • Nationwide multicentre registry

Main finding

As reported in the abstract

Each group vs 2014-2016Adjusted odds ratio (95% CI)
2017-2019
1.01(0.89–1.15)
2020-2022
0.83(0.72–0.94)

Observational data: associations, not effects.

Further findings

OutcomeaOR (95% CI)
Favorable neurologic outcome, ECPR candidates (subgroup)2020-2022 vs 2014-2016 · neurologic outcomes improved1.43 (1.06–1.93)

30-day survival

30-day survival declined during the same period
6.9% to 6.8% and 5.4%

Favorable neurologic outcome, predefined subgroups (subgroup)

Similar trends in most predefined subgroups

Original publication

Temporal Trends in Outcomes After Out-of-Hospital Cardiac Arrest Transported to Critical Care Medical Centers in Japan, 2014–2022: A Nationwide Retrospective Observational Study. Crit Care Med. Published 18 March 2026. doi:10.1097/ccm.0000000000007104

Composed by AI from the published abstract and checked against it. How Briefs are made →

Get them every week

New studies on this topic in My Week and in your Monday e-mail.

We e-mail you a sign-in link and a code. No password, no spam.