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作者报道了19例因颈动脉硬化性狭窄病变(狭窄超过70％)致脑缺血患者,经彩超或磁共振血管造影、数控成影血管造影明确诊断,其中3例成功地作了颈动脉内膜切除术,疏通了颈内动脉;有6例因远端颈内动脉完全性阻塞,不能行手术治疗;其它10例因年迈合并其它严重疾病、医疗费用困难或对接受手术有顾虑等原因暂未接受手术.作者指出:对脑缺血患者(包括短暂性脑缺血和脑梗塞)应作颈动脉的超声检查或造影检查,如发现局限性的颈动脉严重狭窄(超过70％),则可行颈动脉内膜切除术,可改善脑部血液供应.作者指出在手术中采用颈丛麻醉下的颈动脉钳夹试验,将使手术可安全进行.“,”The author reported 19 cases of cerebral ischemia induced by carotid sclerosing stenosis. All these cases were diagnosedsuccessfully by color ultrasound, magnetic resonance biography (MRA) or DSA. Three cases were performed carotid endarterectomysuccessfully. Six cases couldn't get operative treatment because of the complete blocking of distal internal carotid. The other 10cases didn't receive operative treatment provisionally because of the complicatod diseases occurred in senile patients, the shortageof expense, scrupulosity for the operation or other reasons. The author considers that the carotid ultrasound or angiography shouldbe performed for the patients of cerebral ischemia including short-term cerebral ischemia and cerebral infarction. Localized severecarotid stenosis (more than 70%) can be treated by carotid endarterectomy to improve cerebral blood supply. Carotid nip test undercervix plex anaesthesia during operation contribute to make the operation safer.