title: [Relative factors of type II endoleak after endovascular aneurysm repair].
abstract: OBJECTIVE
  To study the relative factors of type II endoleak after endovascular aneurysm repair (EVAR) for abdominal aortic aneurysms.
  
  
  METHODS
  Twenty-eight cases of abdominal aortic aneurysms treated by EVAR were retrospectively analyzed. The characteristics of the inferior mesentery arteries (IMA), the arc Riolan and the lumbar arteries of the cases with or without type II endoleak were analyzed.
  
  
  RESULTS
  Type II endoleak was found in 8 (28.6%) cases, of which, 2 were type IIa and 6 were type IIb. The diameter of the IMA originating part of the cases with type II endoleak [(4.03 ± 1.00) mm] was significantly bigger than that without endoleak [(2.89 ± 0.50) mm, P=0.007]. The number of the lumbar arteries originating from the aneurysm sac in cases with type II endoleak (3.4 ± 0.8) was significantly more than that without endoleak (1.9 ± 1.5, P=0.017). However, type II endoleak was irrelevant to the diameter of originating part of the lumbar arteries and the form of the arc Riolan. After the average 14.5 months follow-up, the aneurysm sac was found with shrinkage in 1 case, no change in 2 cases, and augment in 5 cases. Secondary transarterial embolization was performed for only 1 case.
  
  
  CONCLUSIONS
  Type II endoleak was much easily found in cases with bigger diameter of originating part of the IMA, or in cases with more lumbar arteries originating from the aneurysm sac.
authors.affiliation: Department of Interventional Radiology and Vascular Surgery, Peking University Third Hospital, Beijing 100191, China.
authors.forename: Jing-yuan
authors.initials: JY
authors.lastname: Luan
authors.affiliation: Department of Interventional Radiology and Vascular Surgery, Peking University Third Hospital, Beijing 100191, China.
authors.forename: Xuan
authors.initials: X
authors.lastname: Li
authors.affiliation: Department of Interventional Radiology and Vascular Surgery, Peking University Third Hospital, Beijing 100191, China.
authors.forename: Jun
authors.initials: J
authors.lastname: Fu
authors.affiliation: Department of Interventional Radiology and Vascular Surgery, Peking University Third Hospital, Beijing 100191, China.
authors.forename: Chang-ming
authors.initials: CM
authors.lastname: Wang
authors.affiliation: Department of Interventional Radiology and Vascular Surgery, Peking University Third Hospital, Beijing 100191, China.
authors.forename: Tian-run
authors.initials: TR
authors.lastname: Li
authors.affiliation: Department of Interventional Radiology and Vascular Surgery, Peking University Third Hospital, Beijing 100191, China.
authors.forename: Jin-man
authors.initials: JM
authors.lastname: Zhuang
authors.affiliation: Department of Interventional Radiology and Vascular Surgery, Peking University Third Hospital, Beijing 100191, China.
authors.forename: Qi-chen
authors.initials: QC
authors.lastname: Feng
authors.affiliation: Department of Interventional Radiology and Vascular Surgery, Peking University Third Hospital, Beijing 100191, China.
authors.forename: Jin-tao
authors.initials: JT
authors.lastname: Han
authors.affiliation: Department of Interventional Radiology and Vascular Surgery, Peking University Third Hospital, Beijing 100191, China.
authors.forename: Guo-xiang
authors.initials: GX
authors.lastname: Dong
mesh_terms: D017544:Aortic Aneurysm, Abdominal / Q000601:surgery*; D019917:Blood Vessel Prosthesis Implantation; D004621:Embolization, Therapeutic; D057867:Endoleak; D057510:Endovascular Procedures; D006801:Humans; D012189:Retrospective Studies; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome