title: Neurosurgical treatment for aneurysm remnants or recurrences after coil occlusion.
abstract: OBJECTIVE
  Neurosurgical management of residual aneurysms (RA) after coiling remains a challenging issue. We present a consecutive series of 21 patients who underwent microsurgical treatment of a previously coiled aneurysm.
  
  
  METHODS
  We retrospectively reviewed a consecutive series of 21 patients who underwent operations for an RA after coiling between 1997 and 2007. Postcoiling follow-up imaging included brain magnetic resonance angiography and digital subtraction angiography. The decision for surgical treatment was made when an RA was significant and unsuitable for re-embolization. Data related to the RA and to the surgical technique were analyzed. Postoperative outcome was evaluated with the Glasgow Outcome Scale.
  
  
  RESULTS
  Twenty aneurysms were initially ruptured. Twelve had undergone complete coil occlusion, whereas 6 had a residual neck, 2 had a residual lobule, and 1 had a residual sac. The aneurysms were in the anterior circulation in 18 cases and in the posterior circulation in 3 cases. Twenty RAs were excluded with the apposition of 1 clip beneath the coils, 2 required a temporary occlusion, 2 required extraction of the coils, and 1 presented with an operative rupture. All aneurysms, except 2 that had their residual neck wrapped, were completely occluded. The postoperative Glasgow Outcome Scale score was unchanged in 90% of patients, and 2 patients sustained a moderate disability.
  
  
  CONCLUSIONS
  Microsurgical treatment of RA after endovascular treatment is effective, provided that patients are selected appropriately. The surgical treatment of recanalized aneurysms after coiling is challenging but can result in a good outcome with low morbidity and no mortality.
authors.affiliation: Department of Neurosurgery, Lille University Hospital, Lille, France.
authors.forename: Jean-Paul
authors.initials: JP
authors.lastname: Lejeune
authors.forename: Laurent
authors.initials: L
authors.lastname: Thines
authors.forename: Christian
authors.initials: C
authors.lastname: Taschner
authors.forename: Philippe
authors.initials: P
authors.lastname: Bourgeois
authors.forename: Hilde
authors.initials: H
authors.lastname: Henon
authors.forename: Xavier
authors.initials: X
authors.lastname: Leclerc
mesh_terms: D000328:Adult; D000368:Aged; D002533:Cerebral Angiography; D004621:Embolization, Therapeutic / Q000009:adverse effects; D005260:Female; D023261:Glasgow Outcome Scale; D006801:Humans; D002532:Intracranial Aneurysm / Q000000981:diagnostic imaging / Q000601:surgery / Q000628:therapy*; D008297:Male; D008875:Middle Aged; D019635:Neurosurgical Procedures / Q000009:adverse effects; D019736:Prostheses and Implants; D012008:Recurrence; D012086:Reoperation; D012189:Retrospective Studies; D013525:Surgical Instruments; D016896:Treatment Outcome; D014656:Vascular Surgical Procedures / Q000009:adverse effects