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颈内动脉分布区发生的短暂性脑缺血病人占最终出现完全性卒中的40%,永久而不可逆性神经损害最常发生于短暂性脑缺血发作后的6个月以内,约7/10的病人颈动脉造影证实颈内动脉有狭窄,闭塞或溃疡。Donaghey等于1967年开始试用手术方法,即颈外动脉分支和患侧大脑中动脉的皮层支之间进行端侧吻合,以增加缺血半球的侧支循环。进行这种手术要借助手术显微镜和显微缝合技术。在直径为1.0～1.5mm的血管之间进行端侧吻合,实践证明此技术是可行的,血管通畅率可达85%～95%。术中与术后电磁和
TIA occurs in 40% of patients with transient ischemic attacks, and permanent and irreversible nerve damage most often occurs within 6 months after transient ischemic attacks, with a frequency of approximately 7/10 Carotid angiography of patients confirmed stenosis, occlusion or ulceration of the internal carotid artery. Donaghey et al. Started the pilot surgery in 1967, in which end-to-side anastomoses were performed between the branches of the external carotid artery and the cortical branches of the affected middle cerebral artery to increase collateral circulation in the ischemic hemisphere. To carry out such surgery with surgical microscopy and microscopic stitching techniques. End-to-side anastomosis between vessels of 1.0-1.5 mm in diameter has been shown to be viable in practice, with vascular patency rates of 85% to 95%. Intraoperative and postoperative electromagnetic and