title: Management of intraprocedural spontaneous stent migration into target aneurysm during stent-assisted coiling procedure.
abstract: OBJECTIVE
  The stent-assisted coiling technique has expanded the applicability of endovascular treatment for wide-neck intracranial aneurysms. However, the stability of the deployed stent has been questioned. We present this case to demonstrate intraprocedural migration of the deployed stent and subsequent management.
  
  
  METHODS
  A 59-year-old female patient presented with dizziness and fatigue. Imaging, including CT and MR angiography, revealed a 7×6.5 mm wide-neck basilar tip aneurysm.
  
  
  METHODS
  Stent-assisted coiling was attempted. After deployment of the stent, the distal portion of the stent migrated into the aneurysm sac, and then stabilized. Since attempted coiling without an assistance device was unsuccessful, the balloon-assisted coiling technique was applied. Near-total obliteration of the basilar tip aneurysm was accomplished.
  
  
  CONCLUSIONS
  The stability of a deployed stent should be confirmed to exclude the possibility of intraprocedural stent migration. If stent migration into the target aneurysm occurs, the balloon-assisted coiling technique through the deployed stent is a feasible and valuable tool for successful coil embolization.
authors: Department of Neurosurgery, Wuhan General Hospital, Hubai Province, P R China.
authors: Li
authors: L
authors: Pan
authors: Barbara
authors: B
authors: Hum
authors: Carlos
authors: C
authors: David
authors: Seon Kyu
authors: SK
authors: Lee
mesh_terms: D001488:Basilar Artery / Q000000981:diagnostic imaging; D004621:Embolization, Therapeutic / Q000009:adverse effects* / Q000379:methods; D005260:Female; D005548:Foreign-Body Migration / Q000000981:diagnostic imaging / Q000628:therapy*; D006801:Humans; D002532:Intracranial Aneurysm / Q000000981:diagnostic imaging / Q000628:therapy*; D008875:Middle Aged; D020769:Posterior Cerebral Artery / Q000000981:diagnostic imaging; D011859:Radiography; D015607:Stents / Q000009:adverse effects*