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第一节概论心脏传导阻滞是心脏传导组织的不应期有病理性延长,对冲动的传导能力降低引起。在普通心电图上能认识的心脏传导阻滞有:(1)窦房传导阻滞。(2)心房内传导阻滞。(3)房室传导阻滞。(4)心室内传导阻滞。其中以房室传导阻滞及心室内传导阻滞最常见,一例患者可同时有两种以上的传导阻滞存在。
Section I Introduction Heart block is the heart of conduction tissue refractory period of pathological extension of impulse conduction capacity decreased. Cardiac conduction block can be recognized in ordinary ECG are: (1) sinoatrial block. (2) atrial conduction block. (3) atrioventricular block. (4) intraventricular conduction block. One of the most common AV block and intraventricular conduction block, a patient can have more than two types of conduction block exist.