Subclavian steal syndrome,”Stenosis of subclavian artery proximal to origin of vertebral artery, exercise in the left arm causes reverse of blood flow down the ipsilateral vertebral aa to fill the subclavian aa distal to the stenosis Leads to decreased cerebral blood flowBP in L arm < R arm

Subclavian steal syndrome,”Stenosis of subclavian artery proximal to origin of vertebral artery, exercise in the left arm causes reverse of blood flow down the ipsilateral vertebral aa to fill the subclavian aa distal to the stenosis Leads to decreased cerebral blood flowBP in L arm < R arm decrease pulse in L arm”