Presentation
Dizziness and syncope.
Patient Data
Age: 65 years
Gender: Female
From the case:
Subclavian steal syndrome
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Biphasic flow in the left vertebral artery. Normal spectral trace in the right vertebral artery.
From the case:
Subclavian steal syndrome
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High-grade Stenosis of the first part of the subclavian artery.
Case Discussion
Subclavian steal phenomenon occurs where there is a high-grade stenosis at the first part of the subclavian artery, with reversal of flow in the ipsilateral vertebral artery. In patients with inadequate cerebral collateral supply, they can develop posterior circulation symptoms and then this condition is called subclavian steal syndrome.