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[通过电刺激房室瓣时兴奋在心脏中的传播]

[Spread of excitation through the heart upon electrical stimulation of the atrioventricular valves].

作者信息

Kosharskaia I L

出版信息

Biull Eksp Biol Med. 1979 Feb;87(2):111-4.

PMID:420926
Abstract

Experiments were conducted on the isolated hearts of rabbits and dogs. Synchronous recording of the electrical activity of the right auricle, the right ventricle, and tricuspid valve demonstrated the existence of definite functional associations between the auricular, ventricular and valvular depolarization. The spread of excitation in the heart in electrical stimulation of the atrio-ventricular valves was investigated. The impulses from the heterotopic excitation focus localized in these valves could be conducted to the other parts of the heart and thus lead to cardiac arrhythmias.

摘要

在兔和犬的离体心脏上进行了实验。对右心房、右心室和三尖瓣的电活动进行同步记录,结果表明心房、心室和瓣膜去极化之间存在明确的功能关联。研究了房室瓣电刺激时心脏内兴奋的传播情况。源自这些瓣膜中异位兴奋灶的冲动可传导至心脏的其他部位,从而导致心律失常。

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