微血管搭桥术对脑血管闭塞性疾患引起的一过性局部缺血性发作的病人甚有裨益,从理论上来说这种手术能给局部缺血的大脑皮质一个额外补偿的血液供应。许多病例一过性局部缺血和卒中是由于大脑中动脉供应区的栓塞所致……。栓子主要从颈内动脉通过发出大脑中动脉的相对较大的出口进入大脑中动脉。非栓子性闭塞性颅内血管疾病,也影响到大脑中动脉的分支。慢性完全性颈内动脉闭塞通常引起的症状与大脑中动脉的分布有关。这种疾患标准的动脉内膜剥脱术不值得推荐,因为术后没有显著效果。作者指出此手术在为缺血的大脑皮质建立有效的附加血液供应,故颅外动脉必须吻合到大脑中动脉分支的某个部位,以供应足够的血液来维持适当的新陈代谢功能。作者对表浅的皮质血管进行了详细的局部解剖学的分析,证明某些大脑中动脉的 Microvascular bypass is particularly beneficial for patients with transient ischemic attacks caused by cerebrovascular occlusive disease, which in theory can provide an extra compensated blood supply to the ischemic cerebral cortex. In many cases, transient ischemic attacks and strokes are caused by embolization of the middle cerebral artery supply area. The emboli mainly enter the middle cerebral artery from the internal carotid artery through the relatively larger exit of the middle cerebral artery. Non-embolic occlusive intracranial vascular disease also affects the branches of the middle cerebral artery. Chronic complete internal carotid artery occlusion usually causes symptoms related to the distribution of the middle cerebral artery. The standard endarterectomy for this condition is not recommended because there is no significant effect after surgery. The authors note that this procedure creates an effective additional blood supply for the ischemic cerebral cortex, so that the extracranial artery must be anastomosed to a site in the middle cerebral artery to supply enough blood to maintain proper metabolic function. The authors performed a detailed local anatomical analysis of the superficial cortical blood vessels, demonstrating that certain middle cerebral arteries