Why the study?
Does a biphasic waveform improve defibrillation efficacy compared to a monophasic waveform after short and long durations of ventricular fibrillation in a dog model?
Population
6 dogs in an animal model of sudden death and resuscitation (ventricular fibrillation)
Comparison
Quasi-sinusoidal biphasic waveform and truncated… vs Critically damped sinusoidal monophasic waveform
Design
Preclinical
Authors
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May guide defibrillator waveform development; hypothesis-generating in animals and leaves human translation open.
Does a biphasic waveform improve defibrillation efficacy compared to a monophasic waveform after short and long durations of ventricular fibrillation in a dog model?
Biphasic waveforms, particularly quasi-sinusoidal, are more efficacious than monophasic waveforms for transthoracic defibrillation after both short and long durations of ventricular fibrillation in an animal model.
Walcott et al. (1998) studied this question.
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