由于希氏束电图(HBE)可为房室传导阻滞进行准确可靠的定位,故有更多的机会揭示房室间双层或多层传导障碍,现将我院两例报告如下: 例1 男,76岁,胸闷心悸八年余,曾晕厥二次,血压180～200/90～110mmHg。眼底:双侧视网膜 As the His bundle Electrongraphy (HBE) for atrioventricular block accurate and reliable positioning, so there are more opportunities to reveal atrioventricular double or multi-layer conduction disorders, now our hospital two cases are reported as follows: Example 1 male, 76 years old, chest tightness and palpitations more than eight years, had two syncope, blood pressure 180 ~ 200/90 ~ 110mmHg. Fundus: bilateral retina