Campbell N P, Webb S W, Adgey A A, Pantridge J F
Br Med J. 1977 Nov 26;2(6099):1379-81. doi: 10.1136/bmj.2.6099.1379.
A prospective study of the energy required for transthoracic ventricular defibrillation in adults showed that in 42 (81%) out of 52 episodes of ventricular fibrillation shocks of 100 watt-seconds (Ws) of stored energy were successful. Out of 233 episodes, 222 (95%) were converted by 200 W s shocks. Among patients in whom primary ventricular fibrillation occurred within one hour of the onset of acute myocardial infarction, 200 W s shocks were successful in 40 (98%) out of 41 episodes. When low-energy shocks failed, a stored energy of 400 W s invariably succeeded. The need for large and expensive defibrillators that store more than 400 W s and are less readily available is therefore questioned.
一项针对成人经胸心室除颤所需能量的前瞻性研究表明，在52次心室颤动发作中，42次（81%）使用100瓦秒（Ws）储能的电击成功。在233次发作中，222次（95%）通过200瓦秒电击转复。在急性心肌梗死发作后一小时内发生原发性心室颤动的患者中，41次发作中有40次（98%）使用200瓦秒电击成功。当低能量电击失败时，400瓦秒的储能电击总是成功。因此，对需要储存超过400瓦秒且不易获得的大型昂贵除颤器的需求受到质疑。
