Subclavian-Steal Syndrome

Subclavian-steal syndrome is a vascular condition where proximal stenosis/occlusion of the subclavian artery proximal to the vertebral origin reverses vertebral-artery flow, 'stealing' blood from the posterior circulation. Clinical: posterior-circulation symptoms (vertigo/dizziness/diplopia/syncope) and arm claudication/coldness, with arm exercise precipitating symptoms, and blood-pressure difference between arms. Treatment: control vascular risk; endovascular angioplasty/stenting or surgery for symptomatic patients.

Common Symptoms

Vertigo/dizziness; diplopia/syncope; arm claudication/coldness; arm-exercise trigger; BP difference between arms

Causes and Pathogenesis

Proximal subclavian stenosis reverses vertebral flow, stealing posterior-circulation perfusion to supply the arm.

Treatment

Control vascular risk; antiplatelet; endovascular angioplasty/stenting or surgery for symptomatic stenosis

Preventive Measures

Control vascular risk; antiplatelet; revascularization when symptomatic.

Department to Visit

It is recommended to visit the Neurology department; an appointment can be booked on this platform before the visit.

Warm reminder: The above information is for health science reference only and cannot replace professional medical diagnosis. If you have related symptoms, please seek medical attention at a regular hospital promptly.