title: Percutaneous management of chronic mesenteric ischemia: outcomes after intervention.
abstract: OBJECTIVE
  To assess the efficacy and durability of percutaneous transluminal angioplasty (PTA)/stent placement for treatment of chronic mesenteric ischemia (CMI).
  
  
  METHODS
  A retrospective review of patients treated from January 1986 to August 2003 was conducted. Twenty-nine patients (mean age, 62 years) were treated for clinical symptoms consistent with CMI. Clinical diagnosis was verified with angiographic assessment and PTA with or without stent placement was performed based on angiographic and/or pressure gradient findings. Outcomes were estimated with the Kaplan-Meier method.
  
  
  RESULTS
  A total of 63 interventions were performed in 29 patients during the study period. Of these 63 interventions, 46 PTA and 17 stent implantation procedures were performed. Thirty-four interventions were performed for SMA stenosis/occlusion, 17 interventions for celiac artery stenosis/occlusion, and four interventions were performed on aorto-mesenteric graft stenoses. Technical success was 97%, and clinical success (defined as clinical resolution of symptoms) was 90% (26 of 29 patients). Mean duration of follow-up was 28.3 months. Primary patency for all interventions at 3, 6, and 12 months was 82.7% (95% CI: 68.7-96.7), 78.9% (66.7-91.1), and 70.1% (55.1-85.6), respectively. Primary assisted patency for all interventions at 3, 6, and 12 months was 87.9% (79.0-95.3), 87.9% (79.2-95.1), and 87.9% (77.3-98.3), respectively. An average of 1.9 interventions per patient was required. One major complication occurred (3.4%). There were three minor complications (10.3%).
  
  
  CONCLUSIONS
  Percutaneous intervention for CMI is safe with durable early and midterm clinical success. However, repeated intervention is often required for improved primary assisted patency.
authors.affiliation: School of Medicine, Department of Medical Imaging, Toronto General Hospital, University Health Network - University of Toronto, Toronto, Ontario, Canada.
authors.forename: Mark S
authors.initials: MS
authors.lastname: Landis
authors.forename: Dheeraj K
authors.initials: DK
authors.lastname: Rajan
authors.forename: Martin E
authors.initials: ME
authors.lastname: Simons
authors.forename: Eran B
authors.initials: EB
authors.lastname: Hayeems
authors.forename: John R
authors.initials: JR
authors.lastname: Kachura
authors.forename: Kenneth W
authors.initials: KW
authors.lastname: Sniderman
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000800:Angioplasty, Balloon; D001157:Arterial Occlusive Diseases / Q000503:physiopathology / Q000628:therapy*; D019917:Blood Vessel Prosthesis Implantation; D002445:Celiac Artery / Q000000981:diagnostic imaging / Q000503:physiopathology / Q000601:surgery; D002908:Chronic Disease; D005500:Follow-Up Studies; D006801:Humans; D007511:Ischemia / Q000503:physiopathology / Q000628:therapy*; D017538:Mesenteric Artery, Superior / Q000000981:diagnostic imaging / Q000503:physiopathology / Q000601:surgery*; D008643:Mesentery / Q000098:blood supply; D008875:Middle Aged; D011183:Postoperative Complications / Q000209:etiology / Q000503:physiopathology; D011859:Radiography; D012189:Retrospective Studies; D015607:Stents; D016019:Survival Analysis; D016896:Treatment Outcome; D014654:Vascular Patency / Q000502:physiology