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Return of renal function after endovascular treatment of aortic dissection.

To the Editor: We report a case of asymptomatic dissection of the descending aorta (type B aortic dissection) with silent renal hypoperfusion. A small, nonfunctioning kidney and a contralateral hypertrophied kidney were identified after symptomatic secondary extension of the aortic dissection occurred. After endovascular treatment, the reperfused kidney returned to a normal size and regained function, and the hypertrophy of the contralateral kidney regressed. A 44-year-old man was admitted to the hospital for type B aortic dissection. Computed tomographic (CT) scanning showed patency of the celiac, superior mesenteric, and right renal arteries, but hypoperfusion was present from dynamic compression of . . .