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Figure 10a. Stent placement for the management of recurrent proximal transplant RAS in a 46-year-old man. The patient had already undergone PTA three times. (a) Selective angiogram of the renal artery demonstrates recurrent proximal RAS (arrow). The pressure gradient measured 60 mm Hg. Following angioplasty with a 5-mm balloon, the pressure gradient decreased to 30 mm Hg but remained at that level. A 5 x 17-mm premounted balloon-expandable stent (Express SD; Boston Scientific, Natick, Mass) was deployed across the stenosis. (b) Angiogram obtained after further expansion of the stent with a 6-mm balloon shows good results. The pressure gradient decreased to 15 mm Hg.
