"Subclavian steal phenomenon refers to steno-occlusive disease of the proximal subclavian artery with retrograde flow in the ipsilateral vertebral artery 4. Subclavian steal syndrome is the same as the subclavian steal phenomenon, with the addition of cerebral ischaemic symptoms 4."
"Subclavian steal phenomenon refers to steno-occlusive disease of the proximal subclavian artery with retrograde flow in the ipsilateral vertebral artery 4. Subclavian steal syndrome is the same as the subclavian steal phenomenon, with the addition of cerebral ischaemic symptoms 4."
"Blalock-Taussig shunt"
"changes can be augmented with arm exercise or inflation of BP cuff above systolic pressure 4,6"
"MR"
Expected headings
"MR"
"decreased systolic blood pressure in the affected side; systolic blood pressure difference between the brachial arteries is more than 20 mmHg 2,4,5"
"If the level of stenosis or occlusion is proximal to the vertebral artery, then reversal of flow in the vertebral artery may occur, thereby stealing blood from the posterior circulation 4. When the upper limb is exercised, blood is diverted away from the brain to the arm. Whether or not this steal phenomenon causes cerebral ischaemic symptoms depends on the adequacy of intracranial collateral circulation, especially the posterior communicating arteries. Patients with adequate intracranial collateral circulation are usually asymptomatic; symptomatic patients usually have additional lesions in the intracranial or extracranial cerebral circulation 4,7."