Subclavian Steal Syndrome

Preferred Label : Subclavian Steal Syndrome;

NCIt definition : An uncommon neurovascular condition seen with exertion of the upper extremity. It is usually caused by atherosclerotic stenosis or occlusion of the subclavian artery proximal to the origin of the vertebral artery. In order to maintain adequate perfusion of the arm during exercise on the affected side, the narrowed subclavian artery siphons off retrograde blood flow from the ipsilateral vertebral artery. This is possible due to lower blood pressure distal to the site of narrowing and collateral circulation through the circle of Willis. Affected individuals may remain asymptomatic until the oxygen demand generated from upper extremity exercise requires a large enough compensatory volume of blood to be diverted from the vertebral artery to provoke vertebrobasilar insufficiency and its accompanying neurological sequelae. Presenting clinical signs may include pain or numbness of the affected arm (with diminished pulses and a brachial systolic blood pressure differential of greater than 20 mmHg as compared to the opposite arm), vertigo, tinnitus, dysarthria, diplopia and syncope. Notably, unlike cerebral infarction, the clinical course does not lead to chronic neurologic disability. Prognosis for recovery of normal anterograde circulation is favorable following endovascular or surgical intervention.;

Details

Origin ID

C35044;

UMLS CUI

C0038531;

CISMeF manual mappings
- Subclavian artery stenosis (disorder) [SNOMED CT concept]
Currated CISMeF NLP mapping
- Subclavian artery stenosis [MedDRA Preferred Term]
- Subclavian steal syndrome [PASCAL descriptor]
- Subclavian steal syndrome [ICD-9 code]
- Subclavian steal syndrome [ICD-11 Subcategory]
- Subclavian steal syndrome [MedDRA Preferred Term]
- Subclavian steal syndrome (disorder) [SNOMED CT concept]
- subclavian artery stenosis [Disease (Nov.)]
- subclavian steal syndrome [DO Concept]
- subclavian steal syndrome [MeSH Descriptor]
- subclavian steal syndrome [MeSH concept]
- subclavian steal syndrome [SNOMED Notion]
DO Cross reference
- subclavian steal syndrome [DO Concept]
Semantic type(s)
- Disease or Syndrome [UMLS semantic type]
UMLS correspondences (same concept)
- Subclavian artery stenosis [MedDRA Preferred Term]
- Subclavian artery stenosis (disorder) [SNOMED CT concept]
- Subclavian steal syndrome [ICD-9 code]
- Subclavian steal syndrome [PASCAL descriptor]
- Subclavian steal syndrome [MedDRA Preferred Term]
- Subclavian steal syndrome (disorder) [SNOMED CT concept]
- subclavian artery stenosis [Disease (Nov.)]
- subclavian steal syndrome [DO Concept]
- subclavian steal syndrome [SNOMED Notion]
- subclavian steal syndrome [MeSH concept]
- subclavian steal syndrome [MeSH Descriptor]

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