title: Endovascular internal carotid artery trapping for ruptured blood blister-like aneurysms: long-term results from a single centre.
abstract: BACKGROUND
  Endovascular internal carotid artery (ICA) trapping was performed to treat ruptured blood blister-like aneurysms (BBAs). The aim of this study was to evaluate the procedural risks and long-term follow-up results.
  
  
  METHODS
  The records of 11 consecutive patients with BBAs who underwent endovascular ICA trapping between 2005 and 2010 were reviewed. Clinical outcomes were assessed with modified Rankin Scale (mRS) scores.
  
  
  RESULTS
  Endovascular ICA trapping was performed in 11 patients as either the primary treatment (7 patients) or the secondary treatment (4 patients) after the patient underwent other treatments. Three patients underwent superficial temporal artery (STA)-middle cerebral artery (MCA) bypass when balloon test occlusion (BTO) revealed inadequate collateral circulation. In the primary ICA trapping group (seven patients), six patients had good outcomes (mRS 0 in five, mRS 1 in one), and one patient had a poor outcome (mRS 6: dead). In the secondary ICA trapping group (four patients), two patients had good outcomes (mRS 0), and two patients had poor outcomes (mRS 4, 5). All ten of the surviving patients were clinically stable during the follow-up period (mean 39 months). A radiological follow-up of nine patients (mean 22 months) demonstrated stable occlusion, with the exception of one reopening of the ICA because of coil migration. Perfusion studies of nine patients (mean: 23 months) demonstrated no perfusion decrease.
  
  
  CONCLUSIONS
  Endovascular ICA trapping is an effective and durable treatment for BBAs.
authors.affiliation: Department of Neurosurgery, Dongguk University Ilsan Hospital, Goyang, South Korea.
authors.forename: Byong-Cheol
authors.initials: BC
authors.lastname: Kim
authors.forename: O-Ki
authors.initials: OK
authors.lastname: Kwon
authors.forename: Chang Wan
authors.initials: CW
authors.lastname: Oh
authors.forename: Jae Seung
authors.initials: JS
authors.lastname: Bang
authors.forename: Gyojun
authors.initials: G
authors.lastname: Hwang
authors.forename: Sung-Chul
authors.initials: SC
authors.lastname: Jin
authors.forename: Hyun
authors.initials: H
authors.lastname: Park
mesh_terms: D000328:Adult; D000368:Aged; D001768:Blister / Q000000981:diagnostic imaging / Q000601:surgery; D020215:Carotid Artery, Internal, Dissection / Q000000981:diagnostic imaging* / Q000601:surgery*; D002533:Cerebral Angiography / Q000379:methods; D057510:Endovascular Procedures / Q000009:adverse effects / Q000379:methods*; D005260:Female; D006801:Humans; D002532:Intracranial Aneurysm / Q000000981:diagnostic imaging* / Q000601:surgery*; D008137:Longitudinal Studies; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D025321:Surgery, Computer-Assisted / Q000379:methods; D016896:Treatment Outcome