Cardiac arrest & resuscitation

Association of epinephrine and outcome in cardiac arrest with refractory shockable rhythm: a population-based, propensity-score matched analysis

Crit CarePublished Prospective registry cohort study

Authors' conclusion

In a large population-based registry of patients experiencing refractory ventricular fibrillation, epinephrine use was consistently associated with worse outcome using various methodological approaches.

Study context

Population
OHCA with persistent ventricular fibrillation after at least 3 defibrillations, Paris and suburbs, 15/05/2011 to 31/12/2021
Participants
3,163 participants
Exposure
Epinephrine vs no epinephrine
  • Epinephrinen = 2,572
Outcome
Survival with favorable neurological outcome (Cerebral Performance Categories 1 or 2)
Follow-up
Hospital discharge
Methodological detailsmulticentric, population-based, propensity-score matched, inverse probability weighting
  • Multicentric
  • Population-based
  • Propensity-score matched
  • Inverse probability weighting

Main finding

As reported in the abstract

Survival with favorable neurological outcome (CPC 1 or 2 at hospital discharge)
Epinephrine vs No epinephrineAOR for favorable neurological outcome (95% CI)P value
Multivariate adjustment
0.24(0.19–0.31)
P < 0.001
Propensity-score adjustment
0.24(0.18–0.31)
P < 0.001
Propensity-score matching
0.40(0.31–0.51)
P < 0.001

Observational data: associations, not effects.

Further findings

Favorable outcome, propensity-score matching (sensitivity analysis)

Matched cohort

Original publication

Association of epinephrine and outcome in cardiac arrest with refractory shockable rhythm: a population-based, propensity-score matched analysis. Crit Care. Published 19 June 2025. doi:10.1186/s13054-025-05417-4

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