引起缺血性卒中的原因分为大动脉性、腔隙性及心源性。识别颈动脉狭窄患者的卒中原因有助于确定治疗方案。本文旨在明确 :(1)有症状或无症状颈动脉狭窄时大动脉性、腔隙性及心源性卒中的危险性及比率 ;(2 )不同程度的颈动脉狭窄患者卒中的各种原因 ;(3)颈动脉内膜切除术对各种 The causes of ischemic stroke are divided into aortic, lacunar and cardiogenic. Identifying the cause of stroke in patients with carotid artery stenosis helps determine the treatment regimen. The purpose of this article is to identify: (1) the risk and rate of aortic, lacunar and cardioembolic stroke in symptomatic or asymptomatic carotid stenosis; (2) various causes of stroke in patients with varying degrees of carotid stenosis; (3) Carotid endarterectomy for various