title: Stent salvage using the Enterprise stent for procedure-related complication during coil embolization of ruptured intracranial aneurysms.
abstract: BACKGROUND
  Despite accumulated experience and improved understanding of the tools, endovascular treatment of intracranial aneurysms continues to have risks linked to the technique itself, and induces procedure-related complications. The purpose of this study was to report our series of stent salvage using the Enterprise stent for procedure-related complication during coil embolization in patients with ruptured intracranial aneurysms.
  
  
  METHODS
  Parent artery thrombosis, parent artery dissection, and coil protrusion were considered to be the procedure-related complications. There were 18 consecutive cases (3 unruptured and 15 ruptured aneurysms) with procedure-related complications rescued by the Enterprise stent from December 2008 to December 2011. Follow-up angiography was performed in 14 of the 15 patients with ruptured aneurysms between 6 and 30 months (mean 14.6 months) after the procedure.
  
  
  RESULTS
  The procedure-related complications were parent artery dissection (n = 1), parent artery thrombosis (n = 4), and coil protrusion (n = 10). There was no complication related to delivering or deploying of the Enterprise stent. Initial radiographic results showed 8 cases of complete occlusion and 7 cases of neck remnant. There was no change in the angiographic results during the follow-up periods.
  
  
  CONCLUSIONS
  Facing with procedure-related complications during coil embolization of ruptured intracranial aneurysms, the closed-cell designed Enterprise stent might be a useful option for the salvage technique by restoring blood flow and minimizing thromboembolic events.
authors.affiliation: Department of Neurosurgery, Gangnam Severance Hospital, College of Medicine, Yonsei University, Seoul, Republic of Korea.
authors.forename: Joonho
authors.initials: J
authors.lastname: Chung
authors.forename: Yong Bae
authors.initials: YB
authors.lastname: Kim
authors.forename: Chang-Ki
authors.initials: CK
authors.lastname: Hong
authors.forename: Jin Yang
authors.initials: JY
authors.lastname: Joo
authors.forename: Yong Sam
authors.initials: YS
authors.lastname: Shin
authors.forename: Yong Cheol
authors.initials: YC
authors.lastname: Lim
mesh_terms: D000328:Adult; D017542:Aneurysm, Ruptured / Q000150:complications / Q000175:diagnosis / Q000628:therapy*; D001807:Blood Vessel Prosthesis; D019917:Blood Vessel Prosthesis Implantation / Q000009:adverse effects*; D015331:Cohort Studies; D004621:Embolization, Therapeutic / Q000009:adverse effects*; D004867:Equipment Design; D005260:Female; D006801:Humans; D002532:Intracranial Aneurysm / Q000150:complications / Q000175:diagnosis / Q000628:therapy*; D008297:Male; D008875:Middle Aged; D015607:Stents; D016896:Treatment Outcome