左束支传导阻滞(LBBB)是一种具有重要临床意义的异常心电图。近年来国外对LBBB与电轴关系已有报道,而国内报道甚少。本文就我院1967年1月至1982年1月间资料较完整的55例LBBB患者进行心电图分析,以探讨LBBB电轴左偏的临床意义。 55例LBBB的年龄多在50岁以上(占82％)。本组病例排除了急性心肌梗塞、急性心肌炎以 Left bundle branch block (LBBB) is an important clinical significance of abnormal ECG. In recent years, foreign countries have reported on the relationship between LBBB and electric axis, but few reports in China. This article on our hospital from January 1967 to January 1982 data more complete 55 patients with LBBB ECG analysis to explore the clinical significance of LBBB axis left deviation. 55 cases of LBBB more than the age of 50 years old (82%). This group of patients ruled out acute myocardial infarction, acute myocarditis