title: Percutaneous treatment of symptomatic superior mesenteric vein stenosis using self-expanding nitinol stents.
abstract: OBJECTIVE
  To evaluate the technical and clinical success of percutaneous superior mesenteric vein (SMV) stenting in symptomatic patients using self-expanding nitinol stents.
  
  
  METHODS
  We retrospectively analyzed the technical and clinical success of percutaneous SMV stenting of 6 symptomatic patients (3 men, mean age 67 years, range 48-81 years). Stenosis of the SMV was caused by postoperative stricture (n=3), pancreas carcinoma (n=1) and pancreatitis (n=2). As a result of the stenosis, 3 patients had symptomatic ascites, 2 patients showed signs of mesenteric ischemia and 1 patient had recurrent gastrointestinal bleeding. Stenting was performed by a percutaneous transhepatic approach using self-expanding nitinol stents.
  
  
  RESULTS
  Stenting of the SMV was technically and clinically successful in all patients. No peri-interventional complications occurred. The stent diameters ranged from 6 to 14 mm. During the mean follow-up of 6 months (range, 2-10 months) 1 patient presented early stent occlusion 2 weeks after placement.
  
  
  CONCLUSIONS
  Stenting of a symptomatic SMV stenosis using self-expanding nitinol stents is feasible and clinically effective.
authors.affiliation: Department of Radiology, University Medical Center Regensburg, Franz-Josef-Strauß-Allee 11, 93053 Regensburg, Germany. Electronic address: lukas@lukasbeyer.com.
authors.forename: L P
authors.initials: LP
authors.lastname: Beyer
authors.affiliation: Department of Radiology, University Medical Center Regensburg, Franz-Josef-Strauß-Allee 11, 93053 Regensburg, Germany.
authors.forename: W A
authors.initials: WA
authors.lastname: Wohlgemuth
authors.affiliation: Division of Vascular and Interventional Radiology, Boston Children's Hospital and Harvard Medical School, 300 Longwood Avenue, Boston, MA 02115, USA.
authors.forename: W
authors.initials: W
authors.lastname: Uller
authors.affiliation: Department of Radiology, University Medical Center Regensburg, Franz-Josef-Strauß-Allee 11, 93053 Regensburg, Germany.
authors.forename: B
authors.initials: B
authors.lastname: Pregler
authors.affiliation: Department of Radiology, University Medical Center Regensburg, Franz-Josef-Strauß-Allee 11, 93053 Regensburg, Germany.
authors.forename: H
authors.initials: H
authors.lastname: Goessmann
authors.affiliation: Department of Radiology, University Medical Center Regensburg, Franz-Josef-Strauß-Allee 11, 93053 Regensburg, Germany.
authors.forename: C
authors.initials: C
authors.lastname: Niessen
authors.affiliation: Department of Radiology, University Medical Center Regensburg, Franz-Josef-Strauß-Allee 11, 93053 Regensburg, Germany.
authors.forename: M
authors.initials: M
authors.lastname: Haimerl
authors.affiliation: Department of Radiology, University Medical Center Regensburg, Franz-Josef-Strauß-Allee 11, 93053 Regensburg, Germany.
authors.forename: C
authors.initials: C
authors.lastname: Stroszczynski
authors.affiliation: Department of Radiology, University Medical Center Regensburg, Franz-Josef-Strauß-Allee 11, 93053 Regensburg, Germany.
authors.forename: R
authors.initials: R
authors.lastname: Müller-Wille
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D000497:Alloys / Q000737:chemistry; D000925:Anticoagulants / Q000627:therapeutic use; D001201:Ascites / Q000209:etiology; D002404:Catheterization / Q000295:instrumentation; D003251:Constriction, Pathologic / Q000601:surgery; D005260:Female; D005500:Follow-Up Studies; D006495:Heparin, Low-Molecular-Weight / Q000627:therapeutic use; D006801:Humans; D008297:Male; D065666:Mesenteric Ischemia / Q000209:etiology; D008641:Mesenteric Vascular Occlusion / Q000209:etiology / Q000601:surgery*; D008642:Mesenteric Veins / Q000000981:diagnostic imaging / Q000601:surgery*; D008875:Middle Aged; D010190:Pancreatic Neoplasms / Q000150:complications; D010195:Pancreatitis / Q000150:complications; D011169:Portal Vein / Q000601:surgery; D011183:Postoperative Complications; D011677:Punctures / Q000295:instrumentation; D012189:Retrospective Studies; D000069322:Self Expandable Metallic Stents; D016896:Treatment Outcome; D018615:Ultrasonography, Doppler, Color
chemical_list: D000497:Alloys; D000925:Anticoagulants; D006495:Heparin, Low-Molecular-Weight; C013616:nitinol
keywords: Abdomen/GI; Angioplasty; Mesentery; Percutaneous; Stents