摘要
目的:探讨心肌桥患者左心室功能变化情况。方法:回顾性研究分析2016年1月~2019年6月在弋矶山医院行冠状动脉造影或冠脉CT的237例患者,根据心肌桥冠状动脉收缩期压缩程度分为2组,Ⅰ级组(冠状动脉收缩期受压程度<50%),Ⅱ级组(冠状动脉收缩期受压程度≥50%);正常对照组为行冠状动脉造影除外冠心病及心肌桥的患者;所有患者均行超声心动图检查,评价正常对照组与心肌桥亚组左心室构型及功能指标变化情况。结果:临床诊断为单纯心肌桥的患者42例,冠状动脉心肌桥检出率为17.7%,均为左前降支;与心肌桥Ⅰ级组及正常对照组相比较,心肌桥Ⅱ级组左心室舒张功能指标E、e′降低,E/e′升高,差异有统计学意义(P<0.05)。结论:心肌桥Ⅰ级患者左心室舒张功能无明显变化;心肌桥Ⅱ级患者左心室舒张功能明显减退,左心室舒张功能随着心肌桥冠状动脉收缩期压缩程度加重而逐渐减退。
Objective:To observe the changes of left ventricular function in patients with myocardial bridging.Methods:Retrospective analysis was performed in 237 patients undergone coronary angiography or coronary CT in our hospital between January 2016 and June 2019.The cases were divided into group of levelⅠ(compression<50%)and levelⅡ(compression≥50%)by the ratio of systolic compression of myocardial bridging at coronary artery.Another 27 patients without coronary heart disease and myocardial bridging were included as controls.All participants underwent echocardiography to evaluate the changes of left ventricular configuration and functional indicators.Results:Simple myocardial bridging was detected in 42 patients(17.7%),and generally occurred at the left anterior descending artery.By comparing the patients with levelⅠmyocardial bridging and healthy controls,patients with levelⅡbridging had significantly decreased left ventricular diastolic function index E and e,yet elevated E/e.The difference was significant(P<0.05).Conclusion:The left ventricular diastolic function remains no change in patients with levelⅠof myocardial bridging,yet significantly degenerates in those with myocardial bridge levelⅡ,particularly the left ventricular diastolic function tends to gradually weaken with aggravated systolic compression ratio of coronary myocardial bridges.
作者
张霞
武静
杨灿秀
季翔
朱林丽
吴敬医
ZHANG Xia;WU Jing;YANG Canxiu;JI Xiang;ZHU Linli;WU Jingyi(Department of Ultrasound,The First Affiliated Hospital of Wannan Medical College,Wuhu 241001,China)
出处
《皖南医学院学报》
CAS
2020年第2期165-168,共4页
Journal of Wannan Medical College
基金
安徽省公益性技术应用研究联动计划项目(1704f0804048)。
关键词
冠状动脉心肌桥
左心室
舒张功能
coronary myocardial bridge
left ventricle
diastolic function
