title: A Self-expanding Nitinol Stent (Enterprise) for the Treatment of Wide-necked Intracranial Aneurysms: Angiographic and Clinical Results in 40 Aneurysms.
abstract: OBJECTIVE
  Self-expanding stents are increasingly used for the treatment of complex intracranial aneurysms. The purpose of this study was to evaluate the usefulness and safety of a self-expanding nitinol stent (Enterprise) in the treatment of wide-necked intracranial aneurysms.
  
  
  METHODS
  This was a retrospective study of 39 patients with 40 wide-necked intracranial aneurysms who were enrolled in a single-center registry of patients treated with the Enterprise between June 2009 and December 2011. Thirty patients were asymptomatic, four had cerebrovascular accident sequelae, and five had suffered subarachnoid hemorrhage. One aneurysm had reopened after prior coil embolization, while 39 had not been treated. Clinical charts, procedural data, and angiographic results, including both immediate post-procedural angiograms and follow-up imaging, were reviewed.
  
  
  RESULTS
  The mean neck size of the aneurysms was 5.58 mm (range 3-15.1 mm). Embolization was successful in all patients. There were five procedure-related events. There were no fatalities, but one procedure-related morbidity was noted. The immediate angiographic results included eight complete occlusions (20%), six remnant necks (15%), and 26 remnant sacs (65%). At angiographic follow-up (mean: 11.3 months), out of 18 of the aneurysms treated with stent-assisted coiling, there were 13 (72.2%) complete occlusions, four (22.2%) remnant necks, and one recanalization (5.6%).
  
  
  CONCLUSIONS
  Stent-assisted coiling using the Enterprise is effective for the treatment of wide-necked intracranial aneurysms. Further angiographic and clinical follow-up investigation will be needed for evaluation of the long-term outcomes.
authors.affiliation: Department of Neurosurgery, Busan Paik Hospital, Inje University, Busan, Korea.
authors.forename: Sung Tae
authors.initials: ST
authors.lastname: Kim
authors.affiliation: Department of Diagnostic Radiology, Busan Paik Hospital, Inje University, Busan, Korea.
authors.forename: Hae Woong
authors.initials: HW
authors.lastname: Jeong
authors.affiliation: Department of Neurosurgery, Busan Paik Hospital, Inje University, Busan, Korea.
authors.forename: Young Gyun
authors.initials: YG
authors.lastname: Jeong
authors.affiliation: Department of Diagnostic Radiology, Busan Paik Hospital, Inje University, Busan, Korea.
authors.forename: Young Jin
authors.initials: YJ
authors.lastname: Heo
authors.affiliation: Department of Neurology, Busan Paik Hospital, Inje University, Busan, Korea.
authors.forename: Jeong Hwa
authors.initials: JH
authors.lastname: Seo
authors.affiliation: Department of Neurosurgery, Busan Paik Hospital, Inje University, Busan, Korea.
authors.forename: Sung Hwa
authors.initials: SH
authors.lastname: Paeng
keywords: Coiling; Enterprise; Intracranial aneurysms; Stent
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