摘要
Abstract
Objective To investigate the relationship between myocardial bridge and coronary atherosclerosis where the coronary has a myocardial bridge. Methods Retrospective analysis of 115 cases underwent coronary angiography in MB patients with left anterior descending artery,of which 84 cases were simple MB(group A), and 31 cases were combined anterior descending fixed artery stenosis (group B). Results MB detection rate was 22.3%,which were al situated in the anterior descending branch of the left coronary. The MC degree of stenosis in systolic in group B was higher than that in group A, with a significant dif erence between the two groups ( <0.05).There was no significant dif erence between the two groups in MB Length and distance from MB to the left coronary sinus openings,and whether distorting or into a corner or not. There was a weak positive cor elation in Group B between artery fixed stenosis and MC stenosis (R=0.189, =0.043),and MB distance to the coronary sinus opening had a weak negative cor elation to the degree of MC stenosis (R=-0.188, =0.043). Therefore,the more severe stenosis of MC and the closer from MB to the coronary sinus openings,the more likely to lead to fixed vascular stenosis before the bridge . By regression analysis of the two sets of anatomical factors related to MB,there without a significant dif erence between them ( >0.05),so the degree of MC stenosis,MB length,distance from MB to the coronary sinus openings,whether distorting or into a corner or not,none of them was a risk factor for fixed stenosis. Conclusion Proximal vessel of MB prone to artery fixed stenosis,and the fixed stenosis may be relevant to the degree of MC stenosis.But MB is not a risk factor for coronary artery fixed stenosis,and without increasing incidence of atherosclerosis.关键词
心肌桥/冠状动脉造影/冠状动脉粥样硬化Key words
Myocardial bridge/Coronary angiography/Coronary atherosclerosis
