心房扑动的发生机制是右房内的大折返激动。
It is known that the macro-reentry activation in the right atrium is the mechanism of atrial flutter.
目的探讨劳卡胺对折返激动有关心律失常的对抗作用及其机制。
Objective To investigate the effect of lorcainide on reentry related arrhythmias and its electrophysiological mechanisms.
多个研究认为复杂碎裂电图反映了局部折返激动，且与心脏自主神经兴奋有密切的关系。
Various studies have suggested that CFAEs represent re-entry of the fibrillatory waves, and there is a close relationship between CFAEs and cardiac autonomic ganglia.
结果窦性心律时窦房结发出冲动，激动右心房上部并向右心房下部和左心房传导，而房颤时双心房均可见方向不一、片段的激动波或大的折返环，可见多个传导阻滞区。
During acute AF, there are multiple and discrete excitation wave fronts or reentry activities were found in both LA and RA, and bidirectional block regions could be shown.
结果窦性心律时窦房结发出冲动，激动右心房上部并向右心房下部和左心房传导，而房颤时双心房均可见方向不一、片段的激动波或大的折返环，可见多个传导阻滞区。
During acute AF, there are multiple and discrete excitation wave fronts or reentry activities were found in both LA and RA, and bidirectional block regions could be shown.
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