A clinically significant reduction in blood supply to the BRAIN STEM and CEREBELLUM (i.e., VERTEBROBASILAR INSUFFICIENCY) resulting from reversal of blood flow through the VERTEBRAL ARTERY from occlusion or stenosis of the proximal subclavian or brachiocephalic artery. Common symptoms include VERTIGO; SYNCOPE; and INTERMITTENT CLAUDICATION of the involved upper extremity. Subclavian steal may also occur in asymptomatic individuals. (From J Cardiovasc Surg 1994;35(1):11-4; Acta Neurol Scand 1994;90(3):174-8)
Also Known As:
Subclavian Steal; Subclavian Steal Phenomenon; Subclavian-Carotid Artery Steal Syndrome; Artery Stenoses, Subclavian; Artery Stenosis, Subclavian; Basilar Steal Syndromes; Brachial Basilar Insufficiency Syndrome; Brachial-Basilar Insufficiency Syndromes; Insufficiency Syndrome, Brachial-Basilar; Insufficiency Syndromes, Brachial-Basilar; Phenomenon, Subclavian Steal; Steal Phenomenon, Subclavian; Steal Syndrome, Basilar; Steal Syndrome, Subclavian; Steal Syndromes, Basilar; Steal Syndromes, Subclavian; Steal, Subclavian; Stenoses, Subclavian Artery; Stenosis, Subclavian Artery; Subclavian Artery Stenoses; Subclavian Carotid Artery Steal Syndrome; Subclavian Steal Syndromes; Syndrome, Brachial-Basilar Insufficiency; Syndromes, Brachial-Basilar Insufficiency; Basilar Steal Syndrome; Brachial-Basilar Insufficiency Syndrome; Subclavian Artery Stenosis