title: 15-Year Patency and Life Expectancy After Primary Stenting Guided by Intravascular Ultrasound for Iliac Artery Lesions in Peripheral Arterial Disease.
abstract: OBJECTIVE
  The purpose of this study was to evaluate 15-year patency and life expectancy after endovascular treatment (EVT) with primary stenting guided by intravascular ultrasound (IVUS) for iliac artery lesions.
  
  
  BACKGROUND
  Fifteen-year patency, factors causing restenosis, and survival after IVUS-guided EVT are unclear based on the TransAtlantic Inter-Society Consensus II (TASC-II) classification in peripheral arterial disease (PAD).
  
  
  METHODS
  EVT was performed for 507 lesions in 455 patients with PAD. The 15-year endpoints were primary, primary-assisted, and secondary patency; overall survival; freedom from major adverse cardiovascular events (MACE); and freedom from major adverse cardiovascular and limb events (MACLE).
  
  
  RESULTS
  The 5-, 10-, and 15-year primary and secondary patencies were 89%, 83%, and 75%, respectively, and 92%, 91%, and 91%, respectively. There were no significant differences among TASC-II categories.
  
  
  CONCLUSIONS
  IVUS-guided stenting for the iliac artery had favorable 15-year patency in all TASC categories. Life expectancy after EVT was poor, but stenting is feasible for patients with PAD.
authors.affiliation: Department of Vascular Medicine, Vascular Center, Cardiovascular Hospital of Central Japan (Kitakanto Cardiovascular Hospital), Shibukawa, Gunma, Japan. Electronic address: kumakura@sannet.ne.jp.
authors.forename: Hisao
authors.initials: H
authors.lastname: Kumakura
authors.affiliation: Department of Vascular Medicine, Vascular Center, Cardiovascular Hospital of Central Japan (Kitakanto Cardiovascular Hospital), Shibukawa, Gunma, Japan.
authors.forename: Hiroyoshi
authors.initials: H
authors.lastname: Kanai
authors.affiliation: Department of Vascular Medicine, Vascular Center, Cardiovascular Hospital of Central Japan (Kitakanto Cardiovascular Hospital), Shibukawa, Gunma, Japan.
authors.forename: Yoshihiro
authors.initials: Y
authors.lastname: Araki
authors.affiliation: Department of Vascular Medicine, Vascular Center, Cardiovascular Hospital of Central Japan (Kitakanto Cardiovascular Hospital), Shibukawa, Gunma, Japan.
authors.forename: Yoshiaki
authors.initials: Y
authors.lastname: Hojo
authors.affiliation: Department of Vascular Medicine, Vascular Center, Cardiovascular Hospital of Central Japan (Kitakanto Cardiovascular Hospital), Shibukawa, Gunma, Japan.
authors.forename: Toshiya
authors.initials: T
authors.lastname: Iwasaki
authors.affiliation: Department of Vascular Medicine, Vascular Center, Cardiovascular Hospital of Central Japan (Kitakanto Cardiovascular Hospital), Shibukawa, Gunma, Japan.
authors.forename: Shuichi
authors.initials: S
authors.lastname: Ichikawa
mesh_terms: D000368:Aged; D001157:Arterial Occlusive Diseases / Q000000981:diagnostic imaging / Q000401:mortality / Q000601:surgery*; D057510:Endovascular Procedures / Q000379:methods*; D005260:Female; D005500:Follow-Up Studies; D005544:Forecasting; D006801:Humans; D007083:Iliac Artery; D015994:Incidence; D007564:Japan / Q000453:epidemiology; D008017:Life Expectancy / Q000639:trends*; D008297:Male; D011183:Postoperative Complications / Q000453:epidemiology*; D011184:Postoperative Period; D011379:Prognosis; D011446:Prospective Studies; D025321:Surgery, Computer-Assisted / Q000379:methods*; D015996:Survival Rate / Q000639:trends; D018084:Ultrasonography, Interventional / Q000379:methods*
keywords: intravascular ultrasound; long-term patency; long-term survival; peripheral arterial disease; stent(s)