Key result
Defibrillation at 1.0, 1.3, 1.5, 1.7, and 2.0 times the defibrillation energy requirement yielded success rates of 70%, 84%, 86%, 80%, and 88%, respectively (P=0.03).
Why the study?
Does delivering shocks at higher multiples of the defibrillation energy requirement improve the probability of successful defibrillation in patients undergoing implantable defibrillator implantation?
Population
53 consecutive patients undergoing implantable defibrillator implantation
Comparison
Defibrillation shocks at 1.0, 1.3, 1.5, 1.7, or… vs Different multiples of the defibrillation energy…
Design
Cohort
Authors
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Higher multiples were associated with greater success; leaves open the optimal safety margin for ICD implantation.
Does delivering shocks at higher multiples of the defibrillation energy requirement improve the probability of successful defibrillation in patients undergoing implantable defibrillator implantation?
p-value: p=0.03
Delivering defibrillation shocks at twice the defibrillation energy requirement or with an absolute safety margin of 7 J achieves a high probability of successful defibrillation in patients undergoing ICD implantation.
Strickberger et al. (1997) studied Patients undergoing defibrillator implantation (n=53). Defibrillation at multiples of the defibrillation energy requirement was evaluated on Probability of successful defibrillation (p=0.03). Defibrillation at 1.0, 1.3, 1.5, 1.7, and 2.0 times the defibrillation energy requirement yielded success rates of 70%, 84%, 86%, 80%, and 88%, respectively (P=0.03).
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