Cardiac arrest & resuscitation

Defibrillation in patients with accidental hypothermia and core temperatures ≤30°C – A retrospective observational study

ResuscitationPublished Retrospective observational study

Authors' conclusion

Defibrillation attempts can be successful before rewarming at Tc ≤30°C. The success rate is higher during rewarming and at a higher Tc. Tc is a strong and independent predictor of defibrillation success. Defibrillation at Tc <25°C is unlikely.

Study context

Population
Patients in hypothermic cardiac arrest (Tc ≤30°C) with shockable rhythms undergoing defibrillation attempts, International Hypothermia Registry
Participants
37 patients
Exposure
Defibrillation during rewarming vs before rewarming
  • During rewarmingn = 17
  • Before rewarmingn = 20reference
Outcome
Success rate of defibrillation
Methodological detailsregistry-based (International Hypothermia Registry), multivariate binomial logistic regression
  • Registry-based (International Hypothermia Registry)
  • Multivariate binomial logistic regression

Main finding

As reported in the abstract

Defibrillation success

P < 0.001

Overall success rate
22/37 (59%)

Observational data: associations, not effects.

Further findings

Tc at defibrillation attempt · spread kind not named in abstract

P < 0.001

Lowest Tc with successful defibrillation

No defibrillation attempt successful at Tc <24.8°C

Original publication

Defibrillation in patients with accidental hypothermia and core temperatures ≤30°C – A retrospective observational study. Resuscitation. Published 20 January 2026. doi:10.1016/j.resuscitation.2026.110971

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

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