title: Endovascular treatment of intracranial vertebral artery dissections with stent placement or stent-assisted coiling.
abstract: OBJECTIVE
  Endovascular treatment with stent placement or stent-assisted coiling was recently introduced as an alternative to parent artery occlusion in intracranial vertebral artery dissections. We describe the efficacy and limitations of this method.
  
  
  METHODS
  Fourteen patients with intracranial vertebral artery dissection were treated with stent placement (10 patients) or stent-assisted coiling (4 patients). Double overlapping stents were deployed in 4 of 10 patients with stent placement alone. Angiographic follow-up at 6 to 12 months was available in 13 patients.
  
  
  RESULTS
  In 13 patients with dissecting aneurysm, immediate angiographic outcomes were complete occlusion (1 patient), nearly complete (2 patients), and incomplete (10 patients). Follow-up angiograms of 12 of these patients showed complete occlusion (6 patients) and incomplete (6 patients; 1 unstable and 5 stable). Complete occlusion rates in follow-up angiograms were superior in double stent placement (75%) or stent-assisted Guglielmi detachable coil (GDC) embolization to stent placement alone (0%). There were no instances of postprocedural ischemic attacks, new neurologic deficits, and no new minor or major strokes before patient discharge. On the modified Rankin scale applied in follow-up, all patients were assessed as functionally improved or of stable clinical status.
  
  
  CONCLUSIONS
  Intracranial vertebral artery dissections were acceptably treated with stent placement or stent-assisted coiling, and the patency could be preserved at follow-up. However, the efficiency of stent placement alone for intracranial vertebral artery dissecting aneurysm was limited. Stent-assisted coil embolization or double stent placements are a viable alternative for complete occlusion of dissecting aneurysms.
authors.affiliation: Department of Neurosurgery, Yonsei University College of Medicine, 146-92 Dogok-dong, Kangnamgu, Seoul 135-720, South Korea. jyahn@yumc.yonsei.ac.kr
authors.forename: J Y
authors.initials: JY
authors.lastname: Ahn
authors.forename: I B
authors.initials: IB
authors.lastname: Han
authors.forename: T G
authors.initials: TG
authors.lastname: Kim
authors.forename: P H
authors.initials: PH
authors.lastname: Yoon
authors.forename: Y J
authors.initials: YJ
authors.lastname: Lee
authors.forename: B-H
authors.initials: BH
authors.lastname: Lee
authors.forename: S H
authors.initials: SH
authors.lastname: Seo
authors.forename: D I
authors.initials: DI
authors.lastname: Kim
authors.forename: C K
authors.initials: CK
authors.lastname: Hong
authors.forename: J Y
authors.initials: JY
authors.lastname: Joo
mesh_terms: D000328:Adult; D000368:Aged; D000792:Angiography; D002545:Brain Ischemia / Q000628:therapy; D004621:Embolization, Therapeutic / Q000295:instrumentation* / Q000379:methods; D005260:Female; D005500:Follow-Up Studies; D006261:Headache / Q000628:therapy; D006801:Humans; D008297:Male; D008875:Middle Aged; D015607:Stents; D013345:Subarachnoid Hemorrhage / Q000628:therapy; D013923:Thromboembolism / Q000628:therapy; D016896:Treatment Outcome; D014654:Vascular Patency; D014711:Vertebral Artery / Q000000981:diagnostic imaging; D020217:Vertebral Artery Dissection / Q000628:therapy*