Carotid artery occlusive disease

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Abstract
Stroke is the third most common cause of death and the leading cause of disability in the United States. Management of identifiable risk factors and careful selection of patients for operative intervention constitute the current approach to reducing the morbidity and mortality associated with stroke. A carefully performed carotid endarterectomy (CEA), which has a low periprocedural complication rate, is the only form of mechanical cerebral revascularization for which definitive evidence of clinical effectiveness has been reported. Recently, retrospective case reports and case series have demonstrated the feasibility of carotid angioplasty and stenting as a possible alternative to CEA. In the tradition of the two previous National Institutes of Health (NIH)-sponsored trials--the North American Symptomatic Carotid Endarterectomy Trial (NASCET) and Asymptomatic Carotid Atherosclerosis Study (ACAS)--the National Institutes of Health has sponsored a clinical trial (CREST: Carotid Revascularization-Endarterectomy vs Stent Trial) that is currently under way to determine the efficacy and risks of carotid angioplasty and stenting compared with CEA.