研究表明，脑缺血后即使恢复血供，所有的脑组织不一定均匀获得必须的血液灌流。缺血区脑组织发生再灌流后“无再灌流现象”。有资料表明这种现象是由于脑缺血时，脑血管内皮细胞发生缺氧性肿胀，从而堵塞血管腔［１］。也有实验揭示上述现象有可能是再灌时血流通过侧支循... Studies have shown that even after resuscitation of blood supply after cerebral ischemia, all brain tissue do not necessarily obtain the necessary blood perfusion uniformly. No ischemic brain tissue reperfusion after “no reperfusion phenomenon.” Data show that this phenomenon is due to cerebral ischemia, cerebrovascular endothelial cell hypoxia swelling, thus blocking the vascular lumen [1]. There are experiments revealed that the above phenomenon may be reperfusion blood flow through the collateral circulation ...