title: Midterm outcomes of embolisation of internal iliac artery aneurysms.
abstract: OBJECTIVE
  There is no standardised technique for internal iliac artery aneurysm (IIAA) embolisation and results of long-term prevention of rupture are unknown.
  
  
  METHODS
  We retrospectively evaluated technical aspects and results of IIAA embolisation in a multicentre study.
  
  
  METHODS
  Aneurysm morphology and embolisation techniques were reviewed. Aneurysm-related death, rupture, diameter increase, endoleak, secondary procedure and complication related to the IIA occlusion were recorded.
  
  
  RESULTS
  Between 2001 and 2011, 53 patients with 57 IIAA were treated. Mean diameter of IIAA was 41 mm (range: 25-88 mm). Embolisation techniques were distal and proximal occlusion (n = 24), proximal occlusion (n = 18) and sac packing (n = 15). Cumulative overall survival rate was 92% at 1 year, 83% at 3 years and 59% at 5 years. No cause of deaths was related to aneurysm. Aneurysm diameter increased in five patients and endoleak was observed in 11 patients. One secondary open conversion and five secondary endovascular procedures were performed for increase of diameter or proximal endoleak. Two patients experienced a disabling buttock claudication.
  
  
  CONCLUSIONS
  Embolisation of IIAA is safe in the short- and midterm. However, endoleak and aneurysm diameter increases are not rare. Yearly post-procedure computed tomography angiography seems appropriate.
authors.affiliation: Department of Vascular Surgery, University Hospital of Lyon, Lyon, France. antoinemillon@hotmail.com
authors.forename: A
authors.initials: A
authors.lastname: Millon
authors.forename: Y
authors.initials: Y
authors.lastname: Paquet
authors.forename: S
authors.initials: S
authors.lastname: Ben Ahmed
authors.forename: G
authors.initials: G
authors.lastname: Pinel
authors.forename: E
authors.initials: E
authors.lastname: Rosset
authors.forename: P
authors.initials: P
authors.lastname: Lermusiaux
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D017544:Aortic Aneurysm, Abdominal / Q000150:complications / Q000601:surgery; D019917:Blood Vessel Prosthesis Implantation / Q000009:adverse effects; D002081:Buttocks / Q000098:blood supply; D004108:Dilatation, Pathologic; D004621:Embolization, Therapeutic / Q000009:adverse effects / Q000401:mortality; D057867:Endoleak / Q000209:etiology; D057510:Endovascular Procedures / Q000009:adverse effects; D005260:Female; D005602:France; D006801:Humans; D017543:Iliac Aneurysm / Q000150:complications / Q000175:diagnosis / Q000401:mortality / Q000628:therapy*; D007083:Iliac Artery / Q000000981:diagnostic imaging / Q000473:pathology*; D007383:Intermittent Claudication / Q000209:etiology; D007511:Ischemia / Q000209:etiology; D053208:Kaplan-Meier Estimate; D008297:Male; D008875:Middle Aged; D011237:Predictive Value of Tests; D012189:Retrospective Studies; D013997:Time Factors; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome