subclavian steal syndrome


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Related to subclavian steal syndrome: circle of Willis, thoracic outlet syndrome, vertebral artery, subclavian artery, aortic dissection, Lateral medullary syndrome, Vertebrobasilar insufficiency

subclavian

 [sub-kla´ve-an]
below the clavicle.
subclavian steal syndrome cerebral or brainstem ischemia resulting from diversion of blood flow from the basilar artery to the subclavian artery, in the presence of occlusive disease of the proximal portion of the subclavian artery.

sub·cla·vi·an steal syn·drome

symptoms of vertebrobasilar insufficiency resulting from subclavian steal.

sub·cla·vi·an steal syn·drome

symptoms of vertebrobasilar insufficiency resulting from subclavian steal.

subclavian steal syndrome

a vascular syndrome caused by an occlusion in the subclavian artery proximal to the origin of the vertebral artery. It results in a reversal of the normal blood pressure gradient in the vertebral artery and decreased blood flow distal to the occlusion. It is characterized by episodes of flaccid paralysis of the arm, pain in the mastoid and occipital areas, and a diminished or absent radial pulse on the involved side. Markedly different blood pressure measurements obtained from each arm are sometimes indicative of the condition.

subclavian steal syndrome

Aortic arch syndrome, carotid artery occlusive syndrome, subclavian artery occlusive syndrome, vertebral-basilar artery disease Neurology Cerebrovascular insufficiency due to stenosis or occlusion of the left subclavian artery proximal to the origin of vertebral artery Etiology ASHD, blood clots, trauma, congenital defects and vascular malformations, after neurosurgery, Takayasu's arteritis, thrombosis, trauma, and tumors, exacerbated by exercise of the upper extremity Clinical Neurologic Sx, ↓ pulse, altered BP. See Steal. Cf 'Robin Hood syndrome. '.

sub·cla·vi·an steal syn·drome

(sŭb-klāvē-ăn stēl sin'drōm)
Symptoms of vertebrobasilar insufficiency resulting from subclavian steal.

subclavian steal syndrome

A phenomenon caused by a partial blockage of one of the main arteries that gives branches to the head and then to the arms. Use of the arm may divert blood from the head, leading to VERTIGO, headache, uncontrollable deviation of the eyes, double vision, nausea and vomiting. There is a serious risk of STROKE.