冠心病监护病房中的心律失常。IV. 阵发性心动过速依赖性束支传导阻滞的生理基础。
Arrhythmias in the coronary-care unit. IV. Physiologic bases of paroxysmal tachycardia-dependent bundle branch block.
作者信息
Neasman A R, Schobel R C, Lemberg L
出版信息
Heart Lung. 1976 Jan-Feb;5(1):139-42.
PMID:1043869
Abstract
Paroxysmal BBB may be either tachycardia-dependent which is referred to as "phase 3 block" or bradycardia-dependent, referred to as "phase 4 block." Tachycardia-dependent BBB is related to prolonged recovery. Bradycardia-dependent BBB is related to hypopolarization and SDD. These fundamental electrophysiological properties aid in understanding of transient BBB occurring during an acute MI.
摘要
阵发性束支传导阻滞（BBB）可能是心动过速依赖性的，称为“3相阻滞”，也可能是心动过缓依赖性的，称为“4相阻滞”。心动过速依赖性BBB与恢复时间延长有关。心动过缓依赖性BBB与复极化不足和舒张期去极化有关。这些基本的电生理特性有助于理解急性心肌梗死期间发生的短暂性BBB。
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