Feasibility and Effectiveness of Low‐Energy Catheter Defibrillation in Man
Feasibility and Effectiveness of Low‐Energy Catheter Defibrillation in Man
复制标题
低能量导管除颤对人体的可行性和有效性
DOI：
10.1161/01.cir.47.1.79
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发表时间：
1973
期刊：
影响因子：
37.8
通讯作者：
R. Brawley
中科院分区：
文献类型：
--
作者：
M. Mirowski;M. Mower;V. Gott;R. Brawley
在11例接受冠状动脉手术的患者中评价了低能量心室内导管除颤的有效性，这些患者在缺氧停搏21-42分钟后发生心室颤动。通过心房切开术将远端电极导管引入右心室心尖部。在8名患者中，近端电极是放置在上级腔静脉上的盐水浸泡海绵，而在3名患者中，该电极形成了心肺转流术中使用的上级腔静脉插管的组成部分。在9名患者中，使用5-15 W-sec完成了心室内导管除颤，比桨式除颤所需的能量少得多。没有明显的短期或长期不良影响。其余两名患者除颤不成功归因于电极放置困难。低能量心室内导管除颤在人体中的有效性，除了提出基本的电生理学问题外，还为经静脉自动除颤器的开发提供了背景，以保护选定的高危患者。
The effectiveness of low energy intraventricular catheter defibrillation was evaluated in 11 patients undergoing coronary artery surgery, in whom ventricular fibrillation occurred after anoxic arrest of 21-42 min. A distal electrode catheter was introduced through an atriotomy into the right ventricular apex. In eight patients the proximal electrode was a saline-soaked sponge placed on the superior vena cava, while in three this electrode formed an integral part of the superior vena cava cannula used in cardiopulmonary bypass. Intraventricular catheter defibrillation was accomplished in nine patients using 5-15 w-sec, considerably less energy than required for paddle defibrillation. There were no apparent short or long-term ill effects. Unsuccessful defibrillation in the two remaining patients was ascribed to difficulties in electrode placement. The effectiveness of low energy intraventricular catheter defibrillation in man, in addition to raising basic electrophysiologic questions, provides background for the development of the transvenous automatic defibrillator for protection of selected high-risk patients.