Acute cardiac care & resuscitation

Early extracorporeal cardiopulmonary resuscitation (CPR) for refractory out-of-hospital cardiac arrest – A pre-planned per-protocol analysis of the INCEPTION-trial

ResuscitationPublished Secondary analysis of the INCEPTION randomised trial

Primary resultResult — go to the resultAdjusted odds ratio 1.9 95% CI 0.4–9.3

Authors' conclusion

A pre-planned, pre-specified per-protocol analysis of the INCEPTION-trial, found a higher survival with favorable neurological in patients undergoing ECPR versus CCPR for refractory shockable OHCA. This difference did not reach statistical significance, but results should be interpreted with care, in the light of the small remaining sample size.

Study context

Population
Refractory out-of-hospital cardiac arrest (OHCA); per-protocol excluding criteria violations (incl. time-to-cannulation >60 minutes, ROSC before hospital arrival) and crossoversper-protocol
Participants
81 participants
Comparison
Extracorporeal CPR vs conventional CPR
  • Extracorporeal CPRn = 33
  • Conventional CPRn = 48reference
Primary endpoint
Survival in a neurologically favorable condition (CPC 1-2)
Follow-up
30 days
Methodological detailspre-specified per-protocol analysis, Bayesian analysis (minimally informative prior)
  • Pre-specified per-protocol analysis
  • Bayesian analysis (minimally informative prior)

Primary result

As reported in the abstract

Adjusted odds ratio

1.9

95% CI 0.4–9.3

p-value 0.393

By group

Extracorporeal CPR vs Conventional CPR
adjusted OR 1.9 (95% CI 0.4–9.3); p-value 0.393
Bayesian posterior probability of any ECPR benefit
84%
Bayesian posterior probability of a 5% absolute risk reduction
61%

Original publication

Early extracorporeal CPR for refractory out-of-hospital cardiac arrest – A pre-planned per-protocol analysis of the INCEPTION-trial. Resuscitation. Published 3 November 2023. doi:10.1016/j.resuscitation.2023.110033

Summarised from the published abstract; every number is checked against it

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