title: Perioperative complications after aorto-iliac stenting: associated factors and impact on follow-up cardiovascular prognosis.
abstract: OBJECTIVE
  To investigate factors associated with 30-day perioperative complications (POC) after aorto-iliac (AI) stenting, and to compare follow-up cardiovascular prognosis between patients with and without POC.
  
  
  METHODS
  This was a retrospective multicenter study. We used a multicenter database of 2012 consecutive patients who successfully underwent AI stenting for peripheral arterial disease in 18 centers in Japan from January 2005 to December 2009 to analyze independent predictors of POC and impact of POC on prognosis by logistic regression and a Cox proportional hazard regression model, respectively.
  
  
  RESULTS
  Mean age was 71 ± 9 years (median: 72 years; range: 37-98 years), and 1,636 patients (81%) were men. POC occurred in 126 patients (6.3%). In multivariate logistic regression analysis, old age (≥80 years), critical limb ischemia (CLI), and Trans Atlantic Inter-Societal Consensus (TASC) II class C/D were independently associated with POC with adjusted odds ratios and 95% confidence intervals (CI) of 1.9 (1.3-2.9), 2.3 (1.5-3.4), and 2.4 (1.6-3.4), respectively. Out of 2012 patients, 1995 were followed up for more than 30 days (mean: 2.6 ± 1.5 years; range: 2-2,393 days). In a Cox hazard regression model adjusted for baseline clinical characteristics, POC was positively and independently associated with follow-up major adverse cardiac events (adjusted hazard ratio [HR]: 1.9; 95% CI: 1.3-2.8; p = .002), but not with major adverse limb events and target lesion revascularization (adjusted HR: 1.4; 95% CI: 0.7-2.7; p = .25; and adjusted HR: 1.2; 95% CI 0.6-2.6; p = .568), respectively.
  
  
  CONCLUSIONS
  Age >80 years, CLI, and TASC C/D lesion were positively associated with POC after AI stenting. Occurrence of POC appears to adversely affect follow-up cardiovascular, but not limb and vessel prognosis.
authors.forename: O
authors.initials: O
authors.lastname: Iida
authors.forename: Y
authors.initials: Y
authors.lastname: Soga
authors.forename: M
authors.initials: M
authors.lastname: Takahara
authors.forename: D
authors.initials: D
authors.lastname: Kawasaki
authors.forename: Y
authors.initials: Y
authors.lastname: Yamauchi
authors.forename: K
authors.initials: K
authors.lastname: Suzuki
authors.forename: K
authors.initials: K
authors.lastname: Hirano
authors.forename: R
authors.initials: R
authors.lastname: Koshida
authors.forename: D
authors.initials: D
authors.lastname: Kamoi
authors.forename: J
authors.initials: J
authors.lastname: Tazaki
authors.forename: M
authors.initials: M
authors.lastname: Higashitani
authors.forename: Y
authors.initials: Y
authors.lastname: Shintani
authors.forename: T
authors.initials: T
authors.lastname: Yamaoka
authors.forename: S
authors.initials: S
authors.lastname: Okazaki
authors.forename: N
authors.initials: N
authors.lastname: Suematsu
authors.forename: T
authors.initials: T
authors.lastname: Tsuchiya
authors.forename: Y
authors.initials: Y
authors.lastname: Miyashita
authors.forename: N
authors.initials: N
authors.lastname: Shinozaki
authors.forename: H
authors.initials: H
authors.lastname: Takahashi
authors.forename: M
authors.initials: M
authors.lastname: Uematsu
mesh_terms: D000328:Adult; D000367:Age Factors; D000368:Aged; D000369:Aged, 80 and over; D000800:Angioplasty, Balloon / Q000009:adverse effects* / Q000295:instrumentation*; D001018:Aortic Diseases / Q000175:diagnosis / Q000628:therapy*; D003251:Constriction, Pathologic; D016638:Critical Illness; D005260:Female; D006801:Humans; D007083:Iliac Artery / Q000000981:diagnostic imaging; D007511:Ischemia / Q000175:diagnosis / Q000628:therapy*; D007564:Japan; D016015:Logistic Models; D008297:Male; D008875:Middle Aged; D015999:Multivariate Analysis; D016017:Odds Ratio; D058729:Peripheral Arterial Disease / Q000175:diagnosis / Q000628:therapy*; D016016:Proportional Hazards Models; D011859:Radiography; D012189:Retrospective Studies; D018570:Risk Assessment; D012307:Risk Factors; D015607:Stents; D013997:Time Factors; D016896:Treatment Outcome