Cardiac arrest & resuscitation

The impact of alternate defibrillation strategies on time in ventricular fibrillation

ResuscitationPublished Secondary analysis of the DOSE ventricular fibrillation (VF) randomised trial

Authors' conclusion

DSED and VC reduced VF duration and increased the likelihood of ROSC and survival compared to standard shocks.

Study context

Population
Patients with refractory VF in out-of-hospital cardiac arrest (OHCA) enrolled in the Double Sequential External Defibrillation for Refractory VF RCTshocks, 342 patients
Participants
834 patients
Comparison
Double sequential external defibrillation (DSED) and VC vs standard shocks
  • Standardn = 429reference
  • VCn = 218
  • DSEDn = 187
Primary endpoint
VF duration (VF time after each shock)

Primary result

As reported in the abstract

Median VF time

P = 0.003

Further findings

Shocks leading to ROSC — DSED vs Standard

P < 0.001

Shocks leading to survival to hospital discharge — DSED vs Standard

P = 0.002

OutcomeStandardVCDSEDP value
Shocks leading to ROSCVC vs StandardP < 0.002
Shocks leading to survival to hospital dischargeVC vs StandardP = 0.049
Shocks with VF not terminatedDSED vs Standard40.6%— not stated in the abstract29.9%P = 0.013

— not stated in the abstract

Original publication

The impact of alternate defibrillation strategies on time in ventricular fibrillation. Resuscitation. Published 17 February 2025. doi:10.1016/j.resuscitation.2025.110549

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

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