title: Endovascular treatment of intracranial aneurysms with a branch arising from the sac.
abstract: OBJECTIVE
  The endovascular treatment (EVT) of intracranial aneurysms is no more limited by the presence of a branch at the neck or by the neck width. Saccular aneurysms with a branch arising from the sac, however, are mostly candidates for surgery rather than embolization. We prospectively evaluated the feasibility and safety of the EVT in such cases.
  
  
  METHODS
  Between May and November 2004, 9 consecutive patients with a saccular aneurysm that presents a branch arising from the sac were treated by embolization. There were 7 women and 2 men (mean age, 58 years). Six patients presented with a subarachnoid hemorrhage (SAH), and 3 were asymptomatic. All patients were treated by selective coiling with (n = 6) or without (n = 3) the remodeling technique. Clinical outcome was assessed with a modified Glasgow Outcome Scale at 3 months.
  
  
  RESULTS
  EVT was successfully performed in all patients and resulted in 7 excellent outcomes and 2 deaths related to SAH complications. The arterial branch could be preserved in 7 cases and intentionally occluded in 2. Neither embolic nor ischemic complication occurred in the vascular territory of the involved branch. Angiographic results showed 5 neck remnants, 2 incomplete occlusions, and 2 complete occlusions. No rebleeding occurred.
  
  
  CONCLUSIONS
  Our study, though limited by its small patient population, suggests that saccular intracranial aneurysms with a branch arising from the sac may be treated by endovascular approach with excellent clinical results; however, larger series with long-term follow-up are mandatory to confirm these preliminary results mostly in terms of anatomic stability.
authors.affiliation: Department of Neuroradiology, Erasme University Hospital, Brussels, Belgium.
authors.forename: B
authors.initials: B
authors.lastname: Lubicz
authors.forename: F
authors.initials: F
authors.lastname: Lefranc
authors.forename: M
authors.initials: M
authors.lastname: Levivier
authors.forename: O
authors.initials: O
authors.lastname: Dewitte
authors.forename: B
authors.initials: B
authors.lastname: Pirotte
authors.forename: J
authors.initials: J
authors.lastname: Brotchi
authors.forename: D
authors.initials: D
authors.lastname: Balériaux
mesh_terms: D000328:Adult; D000368:Aged; D004621:Embolization, Therapeutic; D005260:Female; D006801:Humans; D021621:Imaging, Three-Dimensional; D002532:Intracranial Aneurysm / Q000000981:diagnostic imaging / Q000473:pathology / Q000628:therapy*; D008297:Male; D008875:Middle Aged; D011859:Radiography