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.
目的探讨表现为非交替性文氏周期的房室交接区双层阻滞的心电图特点和临床意义。
Objective To explore electrocardiogram feature of non-alternating Wenchebach atrioventricular double layer block and it's clinical significance.
当以机械压迫阻滞感传，皮层体觉诱发电位地形图上只在下肢代表区出现一个反应，面部代表区的反应消失。
However, the response in the face representation disappeared and it was confined to foot representation of SI when the PSM was blocked by mechanical pressure.
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