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 #Subclavian #steal #syndrome #SSS #pathophysiology
