title: The Use of Solitaire AB Stents in Coil Embolization of Wide-Necked Cerebral Aneurysms.
abstract: BACKGROUND
  The Solitaire AB stent is one of many assistant stents used for treating wide-necked cerebral aneurysm, and has been used since 2003. However, large sample studies on its safety and effectiveness are lacking. The objective of this study was to evaluate the effectiveness and safety of the Solitaire AB stent in the coil embolization of wide-necked cerebral aneurysms.
  
  
  METHODS
  Retrospective review of the clinical and image data of 116 patients with wide-necked cerebral aneurysms who had been enrolled at six interventional neuroradiology centers from February 2010 to February 2014 and had been treated by coil embolization; in total, 120 Solitaire AB stents were used. The degree of aneurysm occlusion was examined using digital subtraction angiography (DSA) immediately after the procedure and during follow-up, and was graded using the modified Raymond classification. We also observed complications to evaluate the safety and effectiveness of this therapy.
  
  
  RESULTS
  The 120 Solitaire AB stents (4 mm × 15 mm, four stents; 4 mm × 20 mm, 16 stents; 6 mm × 20 mm, 36 stents; 6 mm × 30 mm, 64 stents) were inserted to treat 120 wide-necked cerebral aneurysms. All stents were inserted successfully. DSA immediately post-surgery revealed 55 cases of complete occlusion, 59 cases of neck remnant, and six cases of aneurysm remnant. Perioperatively, there were four cases of hemorrhage and four cases of stent thrombosis. The follow-up spanned 3-37 months; of 92 patients examined by DSA at the 6-month follow up, 12 had disease recurrence.
  
  
  CONCLUSIONS
  The Solitaire AB stent is effective with a good technical success rate and short-term effect for assisting coil embolization of wide-necked cerebral aneurysms.
authors.affiliation: Department of Interventional Radiology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China; Interventional Institute of Zhengzhou University, Zhengzhou, China.
authors.forename: Teng-Fei
authors.initials: TF
authors.lastname: Li
authors.affiliation: Department of Interventional Radiology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China; Interventional Institute of Zhengzhou University, Zhengzhou, China.
authors.forename: Shao-Feng
authors.initials: SF
authors.lastname: Shui
authors.affiliation: Department of Interventional Radiology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China; Interventional Institute of Zhengzhou University, Zhengzhou, China.
authors.forename: Xin-Wei
authors.initials: XW
authors.lastname: Han
authors.affiliation: Department of Interventional Radiology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China; Interventional Institute of Zhengzhou University, Zhengzhou, China.
authors.forename: Lei
authors.initials: L
authors.lastname: Yan
authors.affiliation: Department of Interventional Radiology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China; Interventional Institute of Zhengzhou University, Zhengzhou, China.
authors.forename: Ji
authors.initials: J
authors.lastname: Ma
authors.affiliation: Department of Interventional Radiology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China; Interventional Institute of Zhengzhou University, Zhengzhou, China.
authors.forename: Dong
authors.initials: D
authors.lastname: Guo
authors.affiliation: Department of Neurology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.
authors.forename: Hong-Can
authors.initials: HC
authors.lastname: Zhu
authors.affiliation: Department of Neurosurgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.
authors.forename: Shu-Kai
authors.initials: SK
authors.lastname: Wang
authors.affiliation: Department of Neurology, The Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou, China.
authors.forename: Yuan-Hong
authors.initials: YH
authors.lastname: He
authors.affiliation: Department of Neurology, The Affiliated First Hospital of Henan University, Kaifeng, China.
authors.forename: Wen-Wu
authors.initials: WW
authors.lastname: Chen
authors.affiliation: Department of Neurology, Luoyang Central Hospital, Luoyang, China.
authors.forename: Li-Ping
authors.initials: LP
authors.lastname: Wei
authors.affiliation: Department of Neurology, Luohe First people's Hospital, Luohe, China.
authors.forename: Ming-Ke
authors.initials: MK
authors.lastname: Wang
authors.affiliation: Department of Neurology, Luohe First people's Hospital, Luohe, China.
authors.forename: Tai-Min
authors.initials: TM
authors.lastname: Song
mesh_terms: D001807:Blood Vessel Prosthesis; D002533:Cerebral Angiography; D004621:Embolization, Therapeutic; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D002532:Intracranial Aneurysm / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D019635:Neurosurgical Procedures / Q000295:instrumentation* / Q000379:methods*; D011184:Postoperative Period; D012189:Retrospective Studies; D015607:Stents / Q000706:statistics & numerical data*; D016896:Treatment Outcome