title: Long-term outcomes of endovascular therapy for aortoiliac bifurcation lesions in the real-AI registry.
abstract: OBJECTIVE
  To report long-term outcomes of endovascular therapy (EVT) for aortoiliac bifurcation lesions.
  
  
  METHODS
  Patients enrolled in the multicenter REtrospective AnaLysis of Aorto-Iliac stenting (REAL-AI) registry in Japan were pooled. Of 2096 patients who underwent EVT for de novo aortoiliac disease between January 2005 and December 2009, 190 patients (148 men; mean age 70±9 years) had aortoiliac bifurcation lesions that were treated with stents, whose configuration (single, V, or kissing) and type (balloon-expandable or self-expanding) were subjected to regression analysis to determine any impact on primary patency along with other demographic, clinical, and lesion characteristics, including Trans-Atlantic Inter-Society Consensus II C/D classification. The primary endpoints were restenosis and target lesion revascularization (TLR). Secondary endpoints were all-cause death, major cardiovascular events, and major cardiovascular + limb events.
  
  
  RESULTS
  The overall complication rate was 6.3%, and 1- and 5-year primary patency rates were 87% and 73%, respectively. Over a mean follow-up of 31±15 months, there were 36 (19.0%) restenoses, 22 (11.6%) TLRs, and 4 (2.1%) reocclusions; stent fracture (2, 1.1%) and major amputation (2, 1.1%) were rare. Only female gender [adjusted hazard ratio (AHR) 4.26, 95% CI 1.89 to 9.71, p<0.001] and residual diameter stenosis (AHR 1.04, 96% CI 1.01 to 1.06, p=0.01) were independent predictors of primary patency.
  
  
  CONCLUSIONS
  Stenting for aortoiliac bifurcation lesions was found to be safe and effective. Neither stent configuration nor type appeared to affect vessel patency in true bifurcation lesions.
authors: 1 Department of Cardiology, Kokura Memorial Hospital, Kitakyushu, Japan.
authors: Hideaki
authors: H
authors: Aihara
authors: Yoshimitsu
authors: Y
authors: Soga
authors: Osamu
authors: O
authors: Iida
authors: Kenji
authors: K
authors: Suzuki
authors: Junichi
authors: J
authors: Tazaki
authors: Yoshiaki
authors: Y
authors: Shintani
authors: Yusuke
authors: Y
authors: Miyashita
mesh_terms: D000368:Aged; D000671:Amputation, Surgical; D000800:Angioplasty, Balloon / Q000009:adverse effects / Q000295:instrumentation / Q000401:mortality; D001018:Aortic Diseases / Q000175:diagnosis / Q000401:mortality / Q000503:physiopathology / Q000628:therapy*; D001157:Arterial Occlusive Diseases / Q000175:diagnosis / Q000401:mortality / Q000503:physiopathology / Q000628:therapy*; D003251:Constriction, Pathologic; D005260:Female; D006801:Humans; D007083:Iliac Artery / Q000503:physiopathology; D007564:Japan; D053208:Kaplan-Meier Estimate; D023821:Limb Salvage; D008297:Male; D008875:Middle Aged; D011474:Prosthesis Design; D012008:Recurrence; D012042:Registries; D012189:Retrospective Studies; D012307:Risk Factors; D015607:Stents; D013997:Time Factors; D016896:Treatment Outcome; D014654:Vascular Patency