title: Semi-jailing technique for coil embolization of complex, wide-necked intracranial aneurysms.
abstract: OBJECTIVE
  Stent-assisted coiling of intracranial aneurysms is performed by placing a microcatheter through a stent's interstices or jailing the microcatheter between the stent and the artery. Both approaches impede manipulation of the microcatheter during coiling. We describe a modified jailing technique that improves catheter maneuverability and report the safety and efficacy of the method for the treatment of complex, wide-necked aneurysms.
  
  
  METHODS
  The semi-jailing technique involves the partial deployment of a retrievable stent, bridging part of the aneurysm neck while leaving space to maneuver the microcatheter. Twenty-two complex, wide-necked aneurysms, including 3 ruptured and 5 dissecting, were treated using the semi-jailing technique (15 women; mean age, 55.2 years).
  
  
  RESULTS
  The semi-jailing technique was successfully applied in all cases. Immediate posttreatment angiograms showed total occlusion of the aneurysm in 17 cases (77%), neck remnant in 3 cases (14%), and aneurysm dome filling in 2 cases (9%). Follow-up angiography available in 10 patients at an average of 8.5 months showed progressive occlusion in 1 aneurysm and 7 remained occluded. In 2 cases of dissecting aneurysms, retreatment was required. No permanent periprocedural morbidity was encountered. One patient died of complications secondary to intracranial hemorrhage 6 days after treatment. In 2 cases (9%), thromboembolic events after final stent placement were successfully treated with intraarterial thrombolysis. No delayed stent migration was seen.
  
  
  CONCLUSIONS
  Semi-jailing is a safe and effective stent-assisted coiling technique that facilitates treatment of complex, wide-necked aneurysms.
authors.affiliation: Department of Neurosurgery, Changhai Hospital, 2nd Military Medical University, Shanghai, People's Republic of China.
authors.forename: Bo
authors.initials: B
authors.lastname: Hong
authors.forename: Neil V
authors.initials: NV
authors.lastname: Patel
authors.forename: Matthew J
authors.initials: MJ
authors.lastname: Gounis
authors.forename: Michael J
authors.initials: MJ
authors.lastname: DeLeo
authors.forename: Italo
authors.initials: I
authors.lastname: Linfante
authors.forename: Joan C
authors.initials: JC
authors.lastname: Wojak
authors.forename: Ajay K
authors.initials: AK
authors.lastname: Wakhloo
mesh_terms: D000328:Adult; D000368:Aged; D001241:Aspirin / Q000627:therapeutic use; D001807:Blood Vessel Prosthesis; D002533:Cerebral Angiography / Q000379:methods; D000077144:Clopidogrel; D004621:Embolization, Therapeutic / Q000295:instrumentation* / Q000379:methods*; D005260:Female; D006801:Humans; D002532:Intracranial Aneurysm / Q000473:pathology / Q000628:therapy*; D008297:Male; D008866:Microsurgery; D008875:Middle Aged; D010975:Platelet Aggregation Inhibitors / Q000627:therapeutic use; D011474:Prosthesis Design; D015607:Stents; D013988:Ticlopidine / Q000031:analogs & derivatives / Q000627:therapeutic use; D016896:Treatment Outcome
chemical_list: D010975:Platelet Aggregation Inhibitors; D000077144:Clopidogrel; D013988:Ticlopidine; D001241:Aspirin