【摘要】 目的 :探讨心肌桥的冠状动脉 (冠脉 )造影特点及其临床意义。方法 :对 747例接受选择性冠脉造影的病例进行回顾性分析 ,共检出心肌桥 3 8例 ,采用计算机辅助定量冠脉造影系统软件对心肌桥进行定量分析。结果 :3 8例均为前降支肌桥 ,在冠脉投照位中以左肩位及右肩位收缩期狭窄最严重 ,肌桥长度平均 18 8± 5 1mm ,肌桥近端距第一对角支距离平均 2 0 1± 7 6mm ,距前降支起始部距离平均 3 1 3± 9 7mm ,距左冠脉起始部距离平均45 1± 10 4mm。肌桥前有动脉硬化或狭窄表现者 11例 ( 2 9% ) ,合并冠脉瘘 3例 ( 8% ) ,合并肥厚性心肌病 2例 ( 5 % )。结论 :在冠脉造影中心肌桥现象并非罕见 ,左肩位造影发现率高 ,严重心肌桥可以造成心肌缺血。更多还原

【Abstract】 Objective:To evaluate the coronary angiographic features and their clinical significance of myocardial bridging Methods:Thirty eight patients with myocardial bridge were identified from 747 patients who underwent selective coronary angiography Myocardial bridges were quantitively analyzed with QCA software Results:Thirty eight patients had myocardial bridges locating at the left anterior descending(LAD) artery The most notable systolic stenosis was found at left shoulder position and right shoulder position in the coronary angiography The average length of myocardial bridge was 18 8±5 1 mm The average length from the proximal end of myocardial bridge to the first diagonal was 20 1±7 6 mm, to the ostium of LAD was 31 3±9 7 mm,to the ostium of left coronary artery was 45 1±10 4 mm Arteriosclerotic or arteriostenotic behavior was found near the myocardial bridges in 11(29%) patients Myocardial bridge was complicated by coronary artery fistula in 3(8%) patients and by hypertrophic myocardial disease in 2(5%) patients Conclutions:Myocardial bridging is not rarely found by coronary angiography It can be seen clearly at left shoulder position Severe myocardial bridging may induce myocardial ischemia更多还原