Why the study?
What is the mean current required for ventricular defibrillation?
What is the mean current required for ventricular defibrillation?
The current required for ventricular defibrillation in humans is about one-third of that predicted from animal experiments, suggesting no need for defibrillators storing more than 400 J.
Hypothesis-generating for lower defibrillator energies than animal models predict; does not yet support practice changes or device redesign.
The mean current required for ventricular defibrillation was measured and found to be 0.35 +/- SE 0.03 A/kg body weight, which is about one-third of that predicted from animal experiments. There was no apparent correlation between the current required and body weight (r = -0.007 +/- SE 0.213). There is no evidence of need for defibrillators storing more than 400 J.
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Patton et al. (1979) studied this question.
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