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隐匿性传导是造成复杂心律失常的原因之一,可发生于心脏传导组织的任何部位,如房室交界区、右束支、左束支,浦金野氏纤维、心室预激的旁路等。隐匿性传导最易发生在心动周期的绝对不应期与相对不应期的过渡区,其传导方式可为下行性亦可为逆行性,由于发生在房室交界区的隐匿性传导较为多见,故介绍如下。早在1894年Englmann 就曾发现有的心房激动未能下传产生QRS 波群,但却使下一心搏的P-R 间期延长,1948年Langendorf 首先提出“隐匿性传导”的名称,自希氏束心电图应用以来,使某些自体表心电图上推理而得出的房室交界区隐匿性传导,得以证实。
Occult conduction is one of the causes of complex arrhythmia and can occur in any part of the heart conduction tissue such as atrioventricular junction, right bundle branch, left bundle branch, Purkinje fibers, ventricular pre-excitation bypass and so on. Occult conduction most likely occurs in the absolute refractory period of the cardiac cycle and the relative refractory period of the transition zone, the conduction mode may be retrograde or retrograde, occult conduction occurs in the atrioventricular junction is more common , It is introduced as follows. As early as 1894, Englmann had found that some atrial excitability failed to descend to produce QRS complex but prolonged the next PR interval. Langendorf first proposed the name “occult conduction” in 1948, Electrocardiogram since, so that some of the autologous surface ECG reasoning derived from the junction of the atrioventricular conduction was confirmed.