2). This showed complete occlusion of the left internal carotid artery at the common-carotid-artery bifurcation. The left subclavian artery was stenotic proximal to the origin of the vertebral artery.

Internal Carotid endarterectomy was performed in symptomatic patients who had severe carotid artery stenosis (≥ 70% stenosis involving the carotid artery bifurcation). This was established by ...