title: [Single-center experience on clinical application of "anatomic fixation" unibody bifurcated stent-graft in endovascular repair].
abstract: OBJECTIVE
  To evaluate the clinical outcomes of unibody bifurcated stent-graft in endovascular repair (EVAR).
  
  
  METHODS
  Retrospective analyses were conducted for the clinical data and postoperative follow-up results of 125 patients (102 cases from Shanghai Changhai Hospital and another 23 from Shanghai Changzheng Hospital) undergoing EVAR with unibody bifurcated stent-graft from January 2008 to January 2013.
  
  
  RESULTS
  The technical success rate was 100%. Perioperative complications including type I endoleak (n = 3, 2.4%) and type II endoleak (n = 4, 3.2%). The incidence of type I endoleak in challenging neck cases was higher than non-challenging ones. And the difference was statistically significant (P = 0.001). Except for 1 dead case, the remainder was followed up for a mean of 26.4 ± 1.5 (1-60) months. Neither aneurysm rupture nor stent-graft migration occurred. Late type I endoleak occurred (n = 2, 1.6%). There were left lower extremity arterial thrombosis (n = 1, 0.8%) and surgical reintervention (n = 1, 0.8%). Among 3 dead cases, 2 died from acute myocardial infarction and another 1 contrast-induced nephropathy.
  
  
  CONCLUSIONS
  Unibody bifurcated stent-graft is both safe and efficacious in the treatment of abdominal aortic aneurysm without the risk of long-term migration. Moreover, it has excellent outcomes for hostile neck or narrow abdominal aortic bifurcation.
authors.affiliation: Department of Vascular & Endovascular Surgery, Changzheng Hospital, Second Military Medical University, Shanghai 200003, China.
authors.forename: Jun
authors.initials: J
authors.lastname: Bai
authors.affiliation: Department of Vascular & Endovascular Surgery, Changzheng Hospital, Second Military Medical University, Shanghai 200003, China. Email: qulefeng@gmail.com.
authors.forename: Lefeng
authors.initials: L
authors.lastname: Qu
authors.affiliation: Department of Vascular & Endovascular Surgery, Changzheng Hospital, Second Military Medical University, Shanghai 200003, China.
authors.forename: Kangkang
authors.initials: K
authors.lastname: Zhi
authors.affiliation: Department of Vascular & Endovascular Surgery, Changzheng Hospital, Second Military Medical University, Shanghai 200003, China.
authors.forename: Zhiwei
authors.initials: Z
authors.lastname: Gao
authors.affiliation: Department of Vascular & Endovascular Surgery, Changzheng Hospital, Second Military Medical University, Shanghai 200003, China.
authors.forename: Sili
authors.initials: S
authors.lastname: Zou
authors.affiliation: Department of Vascular & Endovascular Surgery, Changzheng Hospital, Second Military Medical University, Shanghai 200003, China.
authors.forename: Yongfa
authors.initials: Y
authors.lastname: Wu
authors.affiliation: Department of Vascular & Endovascular Surgery, Changzheng Hospital, Second Military Medical University, Shanghai 200003, China.
authors.forename: Liang
authors.initials: L
authors.lastname: Wang
authors.affiliation: Department of Vascular & Endovascular Surgery, Changzheng Hospital, Second Military Medical University, Shanghai 200003, China.
authors.forename: Jie
authors.initials: J
authors.lastname: Jin
authors.affiliation: Department of Vascular & Endovascular Surgery, Changzheng Hospital, Second Military Medical University, Shanghai 200003, China.
authors.forename: Jianjin
authors.initials: J
authors.lastname: Wu
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001012:Aorta, Abdominal / Q000601:surgery*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D015607:Stents; D016896:Treatment Outcome