Subclavian Steal Syndrome[edit | edit source]

Anatomical diagram showing the subclavian artery, relevant in Subclavian Steal Syndrome.

Subclavian Steal Syndrome is an uncommon neurovascular condition characterized by a reversal of blood flow in the vertebral artery or the subclavian artery, often observed with exertion of the upper extremity. This syndrome arises due to a stenosis or occlusion of the subclavian artery proximal to the origin of the vertebral artery.

Pathophysiology[edit | edit source]

The condition occurs when there is a significant stenosis or blockage in the subclavian artery. This results in a "steal" of blood from the vertebral artery to compensate for the reduced blood flow to the arm, leading to various neurological symptoms.

Symptoms[edit | edit source]

Symptoms of Subclavian Steal Syndrome may include:

Dizziness or vertigo
Syncope (fainting)
Arm claudication (pain with exercise)
Differences in blood pressure between arms

Diagnosis[edit | edit source]

Diagnosis typically involves:

Clinical examination noting blood pressure differences
Doppler ultrasound of the subclavian and vertebral arteries
Angiography or Magnetic Resonance Angiography (MRA)

Treatment[edit | edit source]

Treatment options vary depending on the severity of symptoms and may include:

Medical management with antiplatelet or antihypertensive medications
Surgical intervention like bypass grafting or angioplasty

External Links[edit | edit source]

Subclavian steal syndrome Resources
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