subclavian steal


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Related to subclavian steal: subclavian vein, subclavian artery, vertebral artery, thoracic outlet syndrome, Vertebrobasilar insufficiency, aortic dissection

steal

 [stēl]
diversion of something from its normal course, usually referring to blood flow in occlusive arterial disease.
subclavian steal in occlusive disease of the subclavian artery, a reversal of blood flow in the ipsilateral vertebral artery from the basilar artery to the subclavian artery beyond the point of occlusion; this may deprive the brain of blood and cause the subclavian steal syndrome.

sub·cla·vi·an steal

obstruction of the subclavian artery proximal to the origin of the vertebral artery; blood flow through the vertebral artery is reversed and the subclavian artery thus "steals" cerebral blood, causing symptoms of vertebrobasilar insufficiency (subclavian steal syndrome); manifested during vigorous use of an upper extremity.

sub·cla·vi·an steal

(sŭb-klā'vē-ăn stēl)
Obstruction of the subclavian artery proximal to the origin of the vertebral artery; blood flow through the vertebral artery is reversed and the subclavian artery thus "steals" cerebral blood, causing symptoms of vertebrobasilar insufficiency (subclavian steal syndrome); becomes evident during vigorous use of an upper extremity.

sub·cla·vi·an steal

(sŭb-klā'vē-ăn stēl)
Obstruction of the subclavian artery proximal to origin of the vertebral artery.