冠状动脉心肌桥与冠状动脉粥样硬化关系的临床研究

The clinical rearch of relationship between myocardial bridging and coronary arterioscerosis

目的探讨行冠状动脉造影(CAG)患者冠状动脉心肌桥(MB)与冠状动脉粥样硬化的关系。方法分析1 500例CAG结果,记录MB的位置及长度以及冠状动脉狭窄的位置及程度。结果检出MB179例(11.9%),其中165例(92.2%)为单发肌桥,14例(7.8%)为多发肌桥,以左前降支(LAD)为最多,共152例(84.9%)。Ⅱ～Ⅲ级狭窄的MB患者近段血管动脉粥样硬化发生率明显高于Ⅰ级狭窄的MB患者,差异有统计学意义(P<0.05)。结论 MB多为LAD单发,有加促其近段血管发生粥样硬化病变的可能,MB的狭窄程度越严重,引起心肌缺血越严重;对于有缺血症状的MB患者应积极给予治疗。

Objective To investigate the correlation between myocardial bridging（MB） and coronary artery atherosclerosis in patients with coronary angiography.Methods Clinical materials of 1 500 patients who had received coronary angiography were analyzed.Location and length of the MB were recorded.The extent and location of coronary artery stenosis were described.Results 179 patients were found with MB（11.9%）.165 patients were found with single MB（92.2%）,14 patients were found with multiple MB（7.8%）.The most frequent segment was localized in left anterior descending artery（LAD）（84.9%）.The incidence rate of atherosclerosis in Ⅱ-Ⅲ degree of MB patients was higher than that in Ⅰ degree of MB patients,the difference was statistically significant（P0.05）.Conclusion The MB occurs in single segment in LAD,it also has the possibility of promoting the atherosclerotic lesions in proximal vascular,the more serious the narrow degree. The MB patients with clinical symptoms should get actively treatment.