长期以来,心肌缺血是否引起心肌坏死被认为是“全和无”的关系。缺血轻或时间短,心肌没有损害,功能很快恢复,反之,则会出现心肌坏死,心功能障碍不能恢复。其收缩功能丧失,表现为室壁节段性运动异常,对于冠心病患者来说,只要有节段性运动异常存在,则相应心肌就无存活(坏死或瘢 For a long time, myocardial ischemia caused myocardial necrosis is considered “all and no” relationship. Light or short ischemia, myocardial damage, rapid recovery of function, on the contrary, there will be myocardial necrosis, cardiac dysfunction can not be restored. The loss of systolic function, manifested as segmental wall motion disorders, for patients with coronary heart disease, as long as there is segmental movement abnormalities, the corresponding myocardium no survival (necrosis or scar