Halpern等把房室结双层传导阻滞现象命名为交替性文氏周期(AW),1979年Slama等又将其分为A、B两型。近年来由于认识水平的提高,国内报道渐多,而房室交界区混合型AW及房室三层传导阻滞现象较少见,我院各遇到1例,特报道如下。 Halpern such as the atrioventricular nodal double-conduction block phenomenon named alternating Venturi cycle (AW), in 1979 Slama and then again divided into A, B two types. In recent years due to the improvement of the level of awareness, more and more domestic reports, and atrioventricular junctional hybrid AW and atrioventricular block three rare, I met each case in hospital, especially reported as follows.