双侧颈内动脉闭塞(包括一侧闭塞,对侧狭窄)并不少见,其发生率约占颈内动脉闭塞病例的10～20%。近年来,颅内—外血管吻合的问世为闭塞侧半球的血供开辟了道路。五年来,作者手术治疗颈内动脉闭塞95例,其中27例伴对侧狭窄或闭塞,按病变部位和类型,可分为三组:(1)双侧闭塞(6例);(2)一侧闭塞+对侧虹吸部或其远端狭窄(14例);(3)一侧闭塞+对 Bilateral carotid artery occlusion (including one side of the occlusion, contralateral stenosis) is not uncommon, the incidence of occlusion of carotid artery occlusion accounts for about 10 to 20% of cases. In recent years, the advent of intracranial-external vascular anastomosis has opened the way for the blood supply of the occluded hemisphere. Five years, the author surgically treated 95 cases of internal carotid artery occlusion, of which 27 cases with contralateral stenosis or occlusion, according to lesion location and type, can be divided into three groups: (1) bilateral occlusion (6 cases); (2) Lateral occlusion + contralateral siphon or its distal stenosis (14 cases); (3) occlusion + on one side