Acute cardiac care & resuscitation

Energy levels in manual defibrillation after prior AED shock

ResuscitationPublished Retrospective registry cohort study

Authors' conclusion

Adherence to escalating energy protocol by EMS during transition from defibrillation with AED to manual defibrillator is limited. Our data did not provide evidence for a relationship between adherence and clinical outcomes.

Study context

Population
Adults with out-of-hospital cardiac arrest (OHCA) and shockable rhythm who received ≥1 AED shock and ≥1 manual defibrillator shock by Emergency Medical Services (EMS)
Participants
827 adults
Exposure
360 J vs 200 J
  • 360 Jn = 168
  • 200 Jn = 659reference
Outcome
Adherence to the escalating energy protocol
Methodological detailsARREST-registry, the Netherlands
  • ARREST-registry, the Netherlands

Main finding

As reported in the abstract

Adherence to escalating energy protocol

Adherence

20.3 %

95 % CI 17.7 %-23.2 %

Observational data: associations, not effects.

Secondary outcomes

Termination of shockable rhythm by first manual shock

P = 0.33

30-day survival (overall)

Overall 30-day survival
38.4 %

Clinical outcomes by adherence

Adherence not significantly associated with differences in clinical outcomes after multivariable analyses

Original publication

Energy levels in manual defibrillation after prior AED shock. Resuscitation. Published 23 September 2025. doi:10.1016/j.resuscitation.2025.110841

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

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