FOLLOW-UP OF RENAL AND MESENTERIC-ARTERY REVASCULARIZATION WITH DUPLEX ULTRASONOGRAPHY

OBJECTIVE: TO evaluate the long-term anatomic results of renal revascu larization procedures using duplex ultrasonography. DESIGN: A case ser ies. SETTING: A university-affiliate hospital. PATIENTS: Twenty-five p atients who had undergone renal percutaneous transluminal angioplasty (PTA) (18 arteries), renal bypass (10 arteries) and mesenteric bypass (6 arteries). The mean follow-up was 22 months (range from 3 to 48 mon ths) for those who underwent renal PTA, 23 months (range from 1.5 to 7 0 months) for those who underwent renal bypass and 34 months (range fr om 8 to 144 months) for those who underwent mesenteric bypass. MAIN OU TCOME MEASURES: Patency rates for the three procedures as assessed by duplex ultrasonography. RESULTS: Duplex ultrasonography demonstrated p atency without stenosis after renal and mesenteric artery revasculariz ation in 14 arteries subjected to renal PTA, 9 arteries subjected to r enal bypass and 6 arteries subjected to mesenteric bypass. Three arter ies that had renal PTA had recurrent vessel stenosis and one had occlu sion. One artery that had renal bypass showed occlusion. CONCLUSIONS: Renal PTA, renal bypass and mesenteric bypass are durable procedures a t 2 pears of follow-up, and duplex ultrasonography is a valuable metho d for assessing the patency of arteries after renal and mesenteric rev ascularization.