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房室传导阻滞(AVB)指的是从心房到心室的传导出现延缓或中断。P-R间期在希氏束电图上可分为P-A(房内或右房)、A-H(房室结)和H-V(从H波至心室波开始,其中包括H波)间距。阻滞可位于单个或多个水平,可以是暂时性的、永久性的或间断性的,也可以是顺向的或逆向的。解释单向传导阻滞的原因有二:①在一束纤维分支为数个
Atrioventricular block (AVB) refers to the delay or interruption of conduction from the atrium to the ventricle. The P-R interval can be divided into P-A (atrial or atrial), A-H (atrioventricular node) and H-V (H-wave from H wave to ventricular wave, including H wave) on His bundle. Blocking can be at a single or multiple levels, can be temporary, permanent or intermittent, and can also be forward or reverse. There are two reasons to explain one-way conduction block: ① There are several branches in a bunch of fibers