title: Endovascular coil trapping for ruptured vertebral artery dissecting aneurysms by using double microcatheters technique in the acute stage.
abstract: BACKGROUND
  In the treatment of vertebral artery (VA) dissecting aneurysms, only proximal occlusion of the VA does not necessarily prevent rerupture. We evaluated the efficacy of coil trapping for the ruptured VA dissecting aneurysms using the double microcatheters technique.
  
  
  METHODS
  We treated 11 patients who presented with subarachnoid haemorrhage (SAH) due to rupture of a VA dissecting aneurysm which did not involve the posterior inferior cerebellar artery at the site of dissection. All patients tolerated the balloon occlusion test. Within 3 days of the SAH, the dissection site was trapped with a Guglielmi detachable coil (GDC) using the double microcatheters technique. The proximal and distal sites of the dissecting aneurysm were embolized simultaneously.
  
  
  RESULTS
  GDC trapping at the affected site was successful in all 11 patients. Radiographic findings showed complete occlusion of the dissection site and patency of the unaffected artery. Although one patient experienced transient dysphagia, there were no major complications.
  
  
  CONCLUSIONS
  The double microcatheters technique is effective for coil trapping of ruptured VA dissecting aneurysms in selected patients. The risks posed by this simple technique are minimal, even in the acute stage.
authors.affiliation: Department of Neurosurgery, Kumamoto University School of Medicine, Honjo, o, Japan. ykai@kaiju.medic.kumamoto-u.ac.jp
authors.forename: Y
authors.initials: Y
authors.lastname: Kai
authors.forename: J-I
authors.initials: JI
authors.lastname: Hamada
authors.forename: M
authors.initials: M
authors.lastname: Morioka
authors.forename: T
authors.initials: T
authors.lastname: Todaka
authors.forename: T
authors.initials: T
authors.lastname: Mizuno
authors.forename: Y
authors.initials: Y
authors.lastname: Ushio
mesh_terms: D000208:Acute Disease; D000328:Adult; D000368:Aged; D017542:Aneurysm, Ruptured / Q000628:therapy*; D021721:Balloon Occlusion; D002404:Catheterization; D004621:Embolization, Therapeutic / Q000379:methods*; D005260:Female; D006801:Humans; D008297:Male; D008866:Microsurgery / Q000379:methods; D008875:Middle Aged; D016896:Treatment Outcome; D014656:Vascular Surgical Procedures / Q000379:methods*; D020217:Vertebral Artery Dissection / Q000628:therapy*