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Reactive hyperemia during cuff test in subclavian steal syndrome

Color-flow imaging (triplex ultrasound) of the right vertebral artery after release of a blood pressure cuff shows complete flow inversion for the entire cardiac cycle during reactive hyperemia of the arm in a 43-year-old man evaluated for repeated transient ischemic attacks in the vertebrobasilar territory.

Abbreviations: RVA=right vertebral artery.

(Source: Bajko Z, Motataianu A, Stoian A, et al. Prevalence and clinical characteristics of subclavian steal phenomenon/syndrome in patients with acute ischemic stroke. J Clin Med 2021;10[22]:5237. Creative Commons Attribution [CC BY] License, https://creativecommons.org/licenses/by/4.0.)

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