Subclavian steal syndrome (SSS) 

Subclavian artery narrowing or oclussion near the proximal portion of the vertebral artery → Hypoperfusion distal to oclussion → compensation by contralateral subclavian circulation→ contralateral vertebral artery → ipsilateral vertebral artery → ipsilateral subclavian artery

Clinical presentation (SSS)

1️⃣ Ischemia upper limb: on exertion, pain, paresthesia, cool skin, claudication, disparity in blood pressure

2️⃣ Neurologic symptoms: dizziness, vertigo, diplopia



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