title: Stent-assisted embolization of wide-neck anterior communicating artery aneurysms: review of 21 consecutive cases.
abstract: OBJECTIVE
  Anterior communicating artery (AcomA) aneurysm is the most frequent form of aneurysm. Stent placement is particularly difficult and of limited use for AcomA aneurysms. We report our experience with stent-assisted embolization for wide-neck AcomA aneurysms in 21 patients. Particular attention is given to the morphologic characteristics and strategy of stent deployment.
  
  
  METHODS
  Between January 2005 and February 2008, stent-assisted coiling was performed in 21 patients with wide-neck AcomA aneurysms. Patient demographics, aneurysm morphology, procedures, and clinical and angiographic outcomes were retrospectively reviewed.
  
  
  RESULTS
  Successful deployment of the stent in the targeted artery was achieved in all patients. Nineteen Neuroform 2 or Neuroform 3 stents and 2 LEO stents were used. The distal segment of the stent was positioned in the ipsilateral A2 in 12 patients, in the contralateral A2 across the AcomA in 5 patients, and into the aneurysm sac in 4 patients. Complete occlusion was achieved in 18 patients; near-complete occlusion, in 2 patients; and partial occlusion, in 1 patient. Intraoperative perforation of the aneurysm developed in 1 patient, which was secured by subsequent coiling. Angiographic follow-up in 12 patients for 6.9 months showed 1 recanalization and no in-stent stenosis.
  
  
  CONCLUSIONS
  Our preliminary results suggest that stent-assisted embolization for wide-neck AcomA aneurysms is technically feasible and safe. Further follow-up is needed for long-term efficacy of stent placement.
authors.affiliation: Department of Neurosurgery, Changhai Hospital, Second Military Medical University, Changhai Road 168, Shanghai, China.
authors.forename: Q
authors.initials: Q
authors.lastname: Huang
authors.forename: Y
authors.initials: Y
authors.lastname: Xu
authors.forename: B
authors.initials: B
authors.lastname: Hong
authors.forename: R
authors.initials: R
authors.lastname: Zhao
authors.forename: W
authors.initials: W
authors.lastname: Zhao
authors.forename: J
authors.initials: J
authors.lastname: Liu
mesh_terms: D000328:Adult; D000368:Aged; D001807:Blood Vessel Prosthesis; D003131:Combined Modality Therapy; D004621:Embolization, Therapeutic / Q000295:instrumentation* / Q000379:methods*; D005260:Female; D006801:Humans; D002532:Intracranial Aneurysm / Q000000981:diagnostic imaging* / Q000628:therapy*; D008297:Male; D008875:Middle Aged; D011859:Radiography; D012189:Retrospective Studies; D015607:Stents; D016896:Treatment Outcome