Key result
Synchronized biphasic defibrillation fails to improve shock success over non-synchronized defibrillation for VF.
Why the study?
Optimization of defibrillation success is important to improve efficacy and minimize post-shock sequelae, and previous work suggested improved shock success with intracardiac shocks synchronized to the upslope of a VF wave.
Does synchronized defibrillation improve shock success compared to non-synchronized defibrillation in a porcine model of ventricular fibrillation?
RCT (n=10)
Randomized
No
Does synchronized defibrillation improve shock success compared to non-synchronized defibrillation in a porcine model of ventricular fibrillation?
p-value: p=0.695
Synchronized defibrillation to the upslope of the surface ECG did not improve shock success compared to non-synchronized shocks in a porcine model of ventricular fibrillation.
No takes yet. Share an insight, caveat, or question.
No benefit from synchronization in porcine VF; leaves open whether timing matters in human defibrillation.
Darragh et al. (2012) conducted an RCT in Ventricular fibrillation (n=10). Synchronized biphasic defibrillation vs. Non-synchronized biphasic defibrillation was evaluated on Shock success (p=0.695). Synchronized biphasic defibrillation did not significantly improve shock success compared to non-synchronized defibrillation for ventricular fibrillation (P=0.695).
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