急性心肌缺血时的窦室传导
Sinoventricular conduction during acute myocardial ischemia.
作者信息
Luca C
出版信息
Acta Cardiol. 1979;34(6):431-6.
PMID:317409
Abstract
A case with sinoventricular conduction and sinus bradycardia during unstable angina pectoris is presented. Although His bundle electrogram showed atrial and His bundle deflection no P waves could be observed in any surface leads even when effective high right atrial pacing was performed. It may be assumed that the electric or sinus impulses are conducted over the specialized atrial tracts while atrial muscle is in a refractory state due to myocardial ischemia.
摘要
本文报告1例不稳定型心绞痛患者出现窦室传导及窦性心动过缓的病例。尽管希氏束电图显示心房及希氏束波，但即使进行有效的高位右房起搏，体表导联仍未观察到P波。推测由于心肌缺血导致心房肌处于不应期时，电冲动或窦性冲动经特殊的心房传导束下传。
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