Objective:To prevent late cerebral icchemic stroke by canotid endarterectomy(CEA).Method:The clinical date of 18 patients with transient ischemic attack(TIA) and carotid artery stenosis who underwent CEA were reviewed.Results: After CEA,the TIA symptoms disappeared in all patients.The cerebral blood flow was improved obviously by TCD.In 6-24 months followed up:none of the patients suffered from severe complication and TIA.Conclusion:CEA possess a definite prevention for cerebral stroke in patients with severe carotid stenosis.Appropriate patients choiced selectively help to reduce the occurrence of postoperative complication.