本文分析556例急性心肌梗死病人房室传导障碍的发生率以及这一合并症和予后的关系。结果如下:发生完全性左束支传导阻滞者23例,占4.1%,死亡率61%,明显高于全组的死亡率或传导功能正常者的死亡率(P<0.001)。完全性右束支阻滞较少见,仅8例,占1.6%,以往认为比较良性,但死亡率亦高,占38%。单独左前半阻滞为最常见,72例,占13%,予后较好;死亡率12%,与传导功能正常者无显著差异。左后半阻滞32例,占5.8%,死亡率较高,为19%,但无统计学意义。右束支伴左前半阻滞者 This article analyzes the incidence of 556 patients with acute myocardial infarction atrioventricular conduction disorders and the relationship between this complication and post-prognosis. The results were as follows: Twenty-three cases (4.1%) had a complete left bundle branch block with a mortality rate of 61%, which was significantly higher than the mortality rate of the whole group or normal conduction function (P <0.001). Complete right bundle branch block is rare, only 8 cases, accounting for 1.6%, in the past that is more benign, but the mortality rate is also high, accounting for 38%. Left anterior lysis alone is the most common, 72 cases, accounting for 13%, better after; mortality of 12%, and the conduction function was normal no significant difference. Left posterior half block in 32 cases, accounting for 5.8%, a higher mortality rate, 19%, but no statistically significant. Right bundle branch with left anterior block