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suo wei jia xing fang shi chuan dao zu zhi
Author(s): 
Pages: 27
Year: Issue:  6
Journal: Progress in Japanese Medicine

Keyword:  房室传导阻滞连接区发生机制普通心电图希氏束电图心房房室阻滞传导障碍假性心室;
Abstract: <正> 心电图上有时看到P—R间期突然延长,每一搏动交替变动,同一个患者出现Mobitz Ⅰ型及Ⅱ型阻滞这样通常难以解释的现象。这种现象的发生机制之一,认为是由于未能向心房、心室传导的房室连接区的早期兴奋即未传播的,过早的房室连接区除极兴备(nonpno-pagatedPremalureA-Vjunctional depolari-zation)所致。这种想法早已被Lengendorf 等由普通心电图记录所推断,近年来由于引进了希氏束电图,证明了这种机制的存在。
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