心肌桥的观测及其解剖生理学意义分析

The surveying and anatomical physiologic analysis of myocardial bridge

目的:探讨心肌桥的存在及其存在的解剖生理学意义。方法:不同年龄段的尸体心脏128例,作年龄、性别记录,比较观察心肌桥的出现率、出现位置、壁冠状动脉所在动脉的形态特点及其与年龄、性别间的关系。结果:心肌桥的解剖检出率随年龄和性别呈阶梯样增加,心肌桥出现的区域位置相对稳定集中,心肌桥所在的冠状动脉在形态上存在显著差异,并随年龄而增强。结论:心肌桥为一良性解剖结构,可能具有支持、固定冠状动脉,局部增大冠状动脉血压,提高心肌血供的“心肌瓣膜”作用。

Objective:To survey the anatomical physiologic functions of the myocardialbridge. Methods: The position and frequency of the myocardial bridge were studied on 128 heart specimens, and the relationship between mural coronary artery and age and sex were discussed. Results: The myocardial bridge and mural coronary artery were changed with age and sex in frequency and shape. Conclusions: The myocardial bridge is an anatomic structure with some functions, such as supporting and fixing aeteria coronaria,increasing arteriotony and raising blood supply of myocardium.