title: Follow-up of renal and mesenteric artery revascularization with duplex ultrasonography.
abstract: OBJECTIVE
  To evaluate the long-term results of renal revascularization procedures using duplex ultrasonography:
  
  
  METHODS
  A case series.
  
  
  METHODS
  A university-affiliated hospital.
  
  
  METHODS
  Twenty-five patients 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 months) for those who underwent renal PTA, 23 months (range from 1.5 to 70 months) for those who underwent renal bypass and 34 months (range from 8 to 144 months) for those who underwent mesenteric bypass.
  
  
  METHODS
  Patency rates for the three procedures as assessed by duplex ultrasonography.
  
  
  RESULTS
  Duplex ultrasonography demonstrated patency without stenosis after renal and mesenteric artery revascularization in 14 arteries subjected to renal PTA, 9 arteries subjected to renal bypass and 6 arteries subjected to mesenteric bypass. Three arteries that had renal PTA had recurrent vessel stenosis and one had occlusion. One artery that had renal bypass showed occlusion.
  
  
  CONCLUSIONS
  Renal PTA, renal bypass and mesenteric bypass are durable procedures at 2 years of follow-up, and duplex ultrasonography is a valuable method for assessing the patency of arteries after renal and mesenteric revascularization.
authors.affiliation: Division of Vascular Surgery, University of British Columbia, Vancouver, BC.
authors.forename: D C
authors.initials: DC
authors.lastname: Taylor
authors.forename: T M
authors.initials: TM
authors.lastname: Houston
authors.forename: C
authors.initials: C
authors.lastname: Anderson
authors.forename: M
authors.initials: M
authors.lastname: Jameson
authors.forename: S
authors.initials: S
authors.lastname: Popatia
mesh_terms: D000800:Angioplasty, Balloon; D005500:Follow-Up Studies; D006801:Humans; D008641:Mesenteric Vascular Occlusion / Q000000981:diagnostic imaging* / Q000601:surgery*; D011183:Postoperative Complications; D012078:Renal Artery Obstruction / Q000000981:diagnostic imaging* / Q000601:surgery*; D012189:Retrospective Studies; D016896:Treatment Outcome; D018616:Ultrasonography, Doppler, Duplex; D014654:Vascular Patency