我院发现1例Ⅲ度房室阻滞伴完全右束支阻滞并发旁路不同比例正传,当旁路正传时掩盖Ⅲ度房室阻滞和右束支传导阻滞。1临床资料患者男性,74岁,因胸闷气短10d入院。35～60岁饮白酒每日约0.5kg,30～60岁吸烟每日约20支,现已戒烟、酒。BP:190/105mmHg(1mmHg=0.133kPa),胸廓右侧呼吸 In our hospital, one case of grade Ⅲ atrioventricular block with complete right bundle branch block complicated by different proportions of bypass was found in our hospital, and the third degree atrioventricular block and right bundle branch block were masked when the bypass was normal. 1 clinical data Male patient, 74 years old, shortness of breath due to shortness of breath 10d admission. 35 to 60-year-old drinking white wine about 0.5kg daily, 30 to 60-year-old smoking about 20 cigarettes daily, is now smoking cessation, alcohol. BP: 190 / 105mmHg (1mmHg = 0.133kPa), the right side of the thorax breathing