title: Bypass-surgery and coil-embolisation in the treatment of cerebral giant aneurysms.
abstract: OBJECTIVE
  Operative clipping is the most effective method in the treatment of cerebral giant aneurysms. But about 50% of all giant aneurysms are treatable this way. We want to report about eight patients with giant cerebral aneurysms, which were in our opinion "unclippable" without causing ischaemia in depending brain areas.
  
  
  METHODS
  We describe eight cases of giant aneurysms of the pericallosal artery (n = 1) the middle cerebral artery (n = 3), the basilar tip (n = 3) and of the upper part of the basilar artery (n = 1). One patient with an aneurysm of the pericallosal artery was treated with an extra-intracranial saphenous vein bypass saphenous bypass, in three cases of middle cerebral artery aneurysms an extra-intracranial bypass was also done combined with a resection of the aneurysm. The four patients suffering from an aneurysm of the basilar artery got an extra intracranial bypass too followed by an occlusion of the aneurysm with GD-Coils.
  
  
  RESULTS
  There was no peri-operative mortality and no severe peri- or postoperative complication. The neurological symptoms of all patients were unchanged after the operation. An angiographic control showed a complete obliteration of the aneurysm and a free running bypass in all cases.
  
  
  CONCLUSIONS
  Bypass surgery and combined bypass surgery and coil embolisation are effective methods in the treatment of giant cerebral aneurysms, which can not be treated by clipping alone.
authors.affiliation: Neurochirurgische Klinik, Klinikum Duisburg, Germany.
authors.forename: C H
authors.initials: CH
authors.lastname: Ewald
authors.forename: D
authors.initials: D
authors.lastname: Kühne
authors.forename: W E
authors.initials: WE
authors.lastname: Hassler
mesh_terms: D000714:Anastomosis, Surgical / Q000379:methods; D001488:Basilar Artery / Q000473:pathology / Q000601:surgery; D002545:Brain Ischemia; D002536:Cerebral Arteries / Q000473:pathology / Q000601:surgery; D004621:Embolization, Therapeutic / Q000379:methods*; D006801:Humans; D002532:Intracranial Aneurysm / Q000473:pathology / Q000601:surgery* / Q000628:therapy; D015607:Stents; D013525:Surgical Instruments; D016896:Treatment Outcome