论文部分内容阅读
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。
Objective: To investigate the characteristics and clinical significance of coronary artery (coronary) angiography in myocardial bridge. Methods: A retrospective analysis of 747 cases undergoing selective coronary angiography was performed. A total of 38 myocardial bridge cases were detected, and the myocardial bridge was quantitatively analyzed by computer-assisted quantitative coronary angiography. Results: Thirty-eight cases were all anterior descending artery bridge. The coronary stenosis was the most severe in the left shoulder and right shoulder systolic. The average length of muscle bridge was 18 8 ± 5 1mm, Diagonal branch distance average 200 ± 7 6mm, distance from the beginning of the anterior descending branch an average of 3 1 3 ± 9 7mm, from the beginning of the left coronary artery averaging 45 1 ± 104mm. There were 11 cases (29%) with arteriosclerosis or stenosis in front of muscle bridge, 3 cases (8%) with coronary fistula and 2 cases (5%) with hypertrophic cardiomyopathy. Conclusion: Myocardial bridge phenomenon in coronary angiography is not uncommon. The incidence of left shoulder angiography is high, and severe myocardial bridge can cause myocardial ischemia.