Key result
Direct-current shocks delivering 194±11 joules terminated 98% of ventricular fibrillation episodes in patients weighing 91 to 225 kg, indicating that higher energy shocks are unnecessary.
Why the study?
Do standard energy direct-current shocks effectively terminate ventricular fibrillation in heavy patients?
Population
n=12 patients weighing 91 to 225 kg experiencing 46 episodes of ventricular fibrillation.
Design
Cohort
Authors
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Standard energy defibrillation (~194 joules delivered) is highly effective (98%) for terminating ventricular fibrillation even in heavy patients, challenging the need for high-energy (400-800 joules) defibrillators.
Observational (n=12)
Do standard energy direct-current shocks effectively terminate ventricular fibrillation in heavy patients?
Standard energy defibrillation (~194 joules delivered) is highly effective (98%) for terminating ventricular fibrillation even in heavy patients, challenging the need for high-energy (400-800 joules) defibrillators.
J. A. Gascho (1979) conducted an observational in Ventricular fibrillation (n=12). Direct-current shocks delivering 194±11 joules was evaluated on Termination of ventricular fibrillation episodes. Direct-current shocks delivering 194±11 joules terminated 98% of ventricular fibrillation episodes in patients weighing 91 to 225 kg, indicating that higher energy shocks are unnecessary.
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