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阐明发生心律失常的有关电生理机制,对选择治疗措施是必要的。同时,对各种抗心律失常药物的作用方式也应了解,这样,才能对不同的心律失常,采用恰如其份的药物。当前有两种电生理机制,被认为是单个期前收缩直至一些严重的快速性心律失常的发病基础:(1)折返或环形激动,(2)异位灶自律
Elucidating the electrophysiological mechanism of occurrence of arrhythmia, the choice of treatment is necessary. At the same time, a variety of anti-arrhythmic drugs should also understand the mode of action, so that different arrhythmias, the proper use of drugs. There are currently two electrophysiological mechanisms considered to be the basis for the onset of a single premature contractions until some serious tachyarrhythmia: (1) reentry or ringing, (2) ectopic focus