什么是冠状动脉的侧支循环 熊向晖 湖南中医药大学第二附属医院（湖南省中医院）

Описание: 什么是冠状动脉的侧支循环 熊向晖 湖南中医药大学第二附属医院（湖南省中医院）
冠状动脉的侧支循环主要是发生于冠状动脉出现严重的狭窄及闭塞的时候，通俗的讲就是冠状动脉供血的前向血流出现中断时，远处病变以远端的心肌出现的缺血。这时可以由冠状动脉自身近端或其他分支的冠状动脉向闭塞病变的远端发出侧支，吻合支的血管腔发生一些扩张，可以为闭塞动脉的远端的心肌组织提供血液供应，称之为侧支循环。侧支循环实际上也是一个自我保护生理过程。当它血管出现了闭塞，远端供血已经没有这部分心肌很容易出现坏死，有侧支循环时能够提供部分的供血，可以保存部分的心功能。

What is the collateral circulation of coronary artery
The collateral circulation of the coronary artery mainly occurs when the coronary artery has serious stenosis and occlusion, Generally speaking, when the forward blood flow of coronary artery is interrupted, Myocardial ischemia in the distal part of the lesion. At this time, the coronary artery from the proximal or other branches of the coronary artery can send collateral to the distal end of the occluded lesion, The anastomotic vessels had some dilation, It can provide blood supply for myocardial tissue at the distal end of occluded artery, It is called collateral circulation. Collateral circulation is actually a physiological process of self-protection. When it's blocked, There is no such part of myocardium in the distal blood supply, so it is easy to necrosis, When there is collateral circulation, it can provide partial blood supply, Can save part of the heart function.