Thyrocervical to vertebral artery transposition and ipsilateral carotid endarterectomy

BACKGROUND We report a new method for treating patients with symptomatic hi gh-grade stenosis of the proximal vertebral artery associated with high-gra de stenosis of the ipsilateral carotid artery. METHODS Our patient had high-grade stenosis of the proximal right vertebral artery as well as high-grade stenosis of the ipsilateral carotid artery an d suffered continued posterior circulation ischemic neurological deficits d espite anticoagulation. RESULTS The patient was successfully treated with a carotid endarterectomy and thyrocervical-to-vertebral artery transposition in a single operation. CONCLUSION This procedure has the advantage in this setting of avoiding add itional cross clamping on the diseased carotid artery that would normally b e required for the vertebral-to-carotid artery transposition with carotid e ndarterectomy. Also, thrombosis at one anastamosis site would not endanger the other site as well. (C) 1999 by Elsevier Science Inc.