Introduction. Asymptomatic carotid artery stenosis is a significant health concern, as out of the 135,701 carotid revascularizations performed in the U.S. in 2005, 122,986 (92%) were for asymptomatic carotid artery stenosis. 1 Current societal guidelines recommend revascularization in most patients with severe asymptomatic carotid artery stenosis. 2 However, these guidelines are based on older ....