冠状动脉心肌桥的临床分析

目的 探讨冠状动脉心肌桥的冠脉造影特点、临床意义及治疗方法。方法 回顾性分析我院231例冠状动脉造影中检出的6例冠脉心肌桥患者的临床资料。结果 检出心肌桥6例，均位于前降支，心肌桥发生率为2．6％，心肌桥长度8．19mm，平均（13．5±4．0）mm。依据Nobel分级法，I级3例，II级2例，III级1例。6例患者应用β受体阻滞剂或钙离子拮抗剂治疗后症状均明显缓解。结论 选择性冠状动脉造影可用于心肌桥的诊断，心肌桥引起心肌缺血表现，应用β受体阻滞剂或钙离子拮抗剂药物治疗有效。

Clinical Analysis of Coronary Artery Myocardial Bridge

Objective To evaluate the coronary angiographic features and treatment of coronary artery myocardial bridge. Methods 6 patients with myocardial bridge were identified from 231 patients who underwent selective coronary angiography. Results All 6 patients had myocardial bridges locating at the left anterior descending（LAD） artery. The rate of myocardial bridges was 2.6%. The length of myocardial bridge was 8～19mm, and the mean was（13.5 ± 4.0）mm. In which 3 patients had I grade systolic narrowing, 2 patients had II grade systolic narrowing, 1 patient had III grade systolic narrowing. After having treated by beta-blockers and calcium channel antagonists, symptoms of angina pectoris were relieved obviously. Conclusion Coronary myocardial bridge may cause myocardial ischemia and angina, and therapy of beta-blockers and calcium channel antagonists are an effective treatment.