title: Clinical and Angiographic Outcomes of Endovascular Treatment for Ruptured Posterior Circulation Cerebral Aneurysms.
abstract: OBJECTIVE
  To report the angiographic and clinical results achieved in endovascular treatment of ruptured posterior circulation cerebral aneurysms over a 3-year period.
  
  
  METHODS
  A retrospective analysis of 45 patients was performed between June 2008 and June 2011. Clinical follow-up was achieved in all patients, with a mean duration of 17 months. Angiographic follow-up was obtained in 88.9% of cases, with a mean duration of 7.2 months.
  
  
  RESULTS
  A clinical improvement, or stable outcome was achieved in all patients. There was one case of re-bleeding as a periprocedural complication 2 days after incomplete stent-assisted coiling of a vertebral artery aneurysm. There was no death in our patients. In 40 of the 45 patients (88.9%), angiographic follow-up was obtained at a mean of 7.2 months (range, 1 to 24 months). Recurrences in 5 patients (12.5%) at 2 days, 3, 6, 8, and 13 months required re-treatment.
  
  
  CONCLUSIONS
  Endovascular embolization is an attractive option for ruptured posterior circulation aneurysms with stable long-term outcome. This study confirmed that endovascular treatment is associated with low mobidity and mortality. However, re-canalization may be observed up to 2 years after the initial obliteration. Long-term follow-up with angiography is needed.
authors.affiliation: The First Affiliated Hospital of China Medical University, Department of Neurosurgery, Shenyang, China.
authors.forename: Jihui
authors.initials: J
authors.lastname: Liu
authors.forename: Xinguo
authors.initials: X
authors.lastname: Li
authors.forename: Shengxue
authors.initials: S
authors.lastname: Sun
authors.forename: Yunjie
authors.initials: Y
authors.lastname: Wang
authors.forename: Peizhuo
authors.initials: P
authors.lastname: Zang
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D017542:Aneurysm, Ruptured / Q000000981:diagnostic imaging / Q000628:therapy*; D002533:Cerebral Angiography; D004621:Embolization, Therapeutic / Q000379:methods*; D057510:Endovascular Procedures / Q000379:methods*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D002532:Intracranial Aneurysm / Q000000981:diagnostic imaging / Q000628:therapy*; D008297:Male; D008875:Middle Aged; D012008:Recurrence; D012189:Retrospective Studies; D015607:Stents; D016896:Treatment Outcome; D055815:Young Adult