title: Early and long-term outcomes of venous stent implantation for iliac venous stenosis after catheter-directed thrombolysis for acute deep vein thrombosis.
abstract: BACKGROUND
  Although stent implantation is used worldwide for peripheral arterial disease, there is little data on the safety and long-term patency of stents implanted for venous disease.
  
  
  RESULTS
  We studied 13 patients with 14 lesions (6 males, 7 females, mean age: 63.2±10.2 years) diagnosed with venous stenosis and who underwent venous stenting. We examined the location of the stenosis, safety of venous stenting, implantation success rate, and long-term stent patency rate. All patients were suffering from venous stenosis in the left common iliac vein because of iliac vein compression syndrome. No major complications occurred during stent implantation. Acute stent occlusion occurred in 1 patient, who was given additional thrombolytic therapy. Of the 13 patients, 10 underwent venography or contrast-enhanced computed tomography (CT) during mid-term follow-up (mean: 12.9±16.1 months), and only 1 stent was occluded, resulting in a patency rate of 90.0%. The latter patient decided to stop taking warfarin soon after stent implantation. Furthermore, 5 patients underwent contrast-enhanced CT to assess the long-term patency of their stents (mean: 79.6±31.2 months), and none was occluded.
  
  
  CONCLUSIONS
  Venous stents display a high long-term patency rate, and hence are a useful tool for treating iliac venous stenosis.
authors.affiliation: Department of Cardiology and Nephrology, Mie University Graduate School of Medicine.
authors.forename: Akimasa
authors.initials: A
authors.lastname: Matsuda
authors.forename: Norikazu
authors.initials: N
authors.lastname: Yamada
authors.forename: Yoshito
authors.initials: Y
authors.lastname: Ogihara
authors.forename: Akihiro
authors.initials: A
authors.lastname: Tsuji
authors.forename: Satoshi
authors.initials: S
authors.lastname: Ota
authors.forename: Ken
authors.initials: K
authors.lastname: Ishikura
authors.forename: Mashio
authors.initials: M
authors.lastname: Nakamura
authors.forename: Masaaki
authors.initials: M
authors.lastname: Ito
mesh_terms: D000368:Aged; D003251:Constriction, Pathologic; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007084:Iliac Vein / Q000000981:diagnostic imaging / Q000601:surgery*; D008297:Male; D062108:May-Thurner Syndrome / Q000000981:diagnostic imaging / Q000628:therapy*; D061185:Mechanical Thrombolysis; D008875:Middle Aged; D011859:Radiography; D015607:Stents; D020246:Venous Thrombosis / Q000000981:diagnostic imaging / Q000628:therapy*