title: Long-term radiographic results of stent-assisted embolization of cerebral aneurysms.
abstract: BACKGROUND
  Aneurysmal subarachnoid hemorrhage is a disabling disease. Endovascular coiling provides minimally invasive, effective, and safe treatment of both ruptured and unruptured intracranial aneurysms. Intracranial stents have improved the endovascular treatment of complex aneurysms, but the long-term durability of this treatment modality needs clarification.
  
  
  OBJECTIVE
  To elucidate the long-term success of intracranial stent use in the treatment of aneurysms.
  
  
  METHODS
  Four hundred ten patients were treated with stent-assisted endovascular management of 464 aneurysms. Treatment of 363 small aneurysms, 88 large aneurysms, and 13 giant aneurysms was analyzed with respect to both long-term anatomic results with digital subtraction angiography and magnetic resonance angiography over the follow-up period.
  
  
  RESULTS
  The 6-month angiographic results of 387 aneurysm treatments revealed complete aneurysm occlusion in 282 (72.9%), residual aneurysm neck in 50 (12.9%), and residual aneurysm filling in 55 (14.2%). Long-term radiographic follow-up, performed in 262 patients (mean, 3.63 years), showed significant recurrence of only 3 aneurysms after 6-month follow-up imaging. Forty-eight aneurysms (11.9%) were considered radiographic failures during the follow-up period.
  
  
  CONCLUSIONS
  The aneurysm recurrence rate after stent-assisted embolization in this series was similar to published data using only coil embolization for the period between treatment and the initial follow-up imaging. For aneurysms that do not initially recur, the presented data suggest improved durability in the subsequent long-term follow-up period.
  
  
  BACKGROUND
  DSA, digital subtraction angiographyMRA, magnetic resonance angiography.
authors: Department of Neurosurgery, Rush University Medical Center, Chicago, Illinois.
authors: Demetrius Klee
authors: DK
authors: Lopes
authors: Andrew Kelly
authors: AK
authors: Johnson
authors: Robert Givens
authors: RG
authors: Kellogg
authors: Daniel Mark
authors: DM
authors: Heiferman
authors: Kiffon Marie
authors: KM
authors: Keigher
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D015901:Angiography, Digital Subtraction; D004621:Embolization, Therapeutic / Q000295:instrumentation* / Q000379:methods*; D005260:Female; D006801:Humans; D002532:Intracranial Aneurysm / Q000000981:diagnostic imaging* / Q000628:therapy*; D008137:Longitudinal Studies; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D015607:Stents; D015898:Tomography Scanners, X-Ray Computed; D016896:Treatment Outcome