Dialysis Arteriovenous Fistula Causing Subclavian Steal Syndrome in the Absence of Subclavian Artery Stenosis

Figure 2

(a) Aortic arch angiogram demonstrating the overall hemodynamics. There is occlusion of the right VA origin and antegrade flow through the right common carotid artery (1) with reversal of flow in the left VA (2) down to the left subclavian artery (3). Note the early antegrade flow through the left subclavian artery (3) and the early filling of the left subclavian vein (4) indicative of the high flow through the dialysis AVF. (b) Anteroposterior left subclavian angiogram with occlusion of the AVF shows reestablishment of normal antegrade flow through the left vertebral artery.

(a)

(b)