Correction of Retrograde Vertebral-Artery Flow and Acquired Coarctation of the Aorta

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Abstract
IN 1961 Reivich et al.1 called attention to the phenomenon of reversal of blood flow in the left vertebral artery after ligation or division of the left subclavian artery proximal to vertebral-artery takeoff. Perfusion of the ligated artery and its branches was accomplished through the vertebral artery rather than through other collateral pathways. Neurologic symptoms were attributed to the resulting decrease in perfusion pressure to the brain-stem and the cerebellar and cerebral structures supplied by the vertebral artery.We recently studied a patient with an unusual set of acquired vascular abnormalities consisting of stenosis of an aortic homograf t in . . .