How recent data have impacted the treatment of internal carotid artery stenosis.

Carotid atherosclerosis accounts for approximately 10% of ischemic stroke cases. Multifaceted medical therapy reduces the risk of stroke in patients with carotid stenosis. Revascularization with endarterectomy or stenting can benefit select patients. In recent years, new information has been obtained regarding optimal selection of revascularization candidates. In addition, new concepts have been formulated regarding the relationship between carotid stenosis and vascular cognitive impairment. Finally, the declining rate of stroke with improved medical therapy has led to the launch of new clinical trials to determine the contemporary risk/benefit ratio of revascularization relative to aggressive medical therapy.