在心室低心率期间的双重潜力的表征. 在短暂的引诱过程中的研究
B Olshansky1, D Moreira, A L Waldo
1University Hospitals of Cleveland/Case Western Reserve University, Ohio.
Circulation
|February 1, 1993
概括
在人类心室低心率期间的双电位表明回流电路内的阻塞,而不是缓慢的导电. 暂时的引进揭示了周围一个区块的区块的明显激活波浪阵线.
科学领域:
- 心脏病学 心脏病学
- 电子生理学 电子生理学
- 心脏节律失常症 心脏节律失常症
背景情况:
- 在动物模型中,在复发性心跳动期间观察到双重潜力.
- 它们在人类心室低心率 (VT) 期间的意义尚不清楚.
研究的目的:
- 为了阐明在人体VT中记录的双重潜力的含义,使用暂时的引入.
主要方法:
- 在三名静脉瘤患者中,使用过渡性引领.
- 分析双电位偏移及其与步调周期长度和QRS复合体的关系.
主要成果:
- 在引进过程中捕获了双重潜力,具有明显的短和长激活时间.
- 短的间隔缩短了更快的节奏,这表明它不代表活跃的去极化.
- 突发的形态变化表明激活方向发生了变化,在静脉断时,双电位消失了.
结论:
- 在VT期间的双电位意味着激活波线前沿在回入电路内的阻塞区域.
- 它们代表了电路中心的阻塞,而不是缓慢导电本身.
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