Subclavian Steal Syndrome (SSS) is a condition that arises when there is a significant blockage or stenosis in the subclavian artery, which can lead to reversed blood flow in the vertebral artery.

Subclavian steal syndrome, upper extremity claudication ... also a hemodynamically significant lesion in the proximal left subclavian artery. Flow reversal can occur in both the vertebral and ...

In addition, in cases of subclavian steal from the vertebral artery, there is a graded system showing a progressive change in the ipsilateral vertebral artery waveform. Grade I lesions demonstrate ...