title: The Barrel stent: new treatment option for stent-assisted coiling of wide-necked bifurcation aneurysms-results of a single-center study.
abstract: OBJECTIVE
  The Barrel stent is a laser cut stent designed for stent-assisted coil embolization of wide-necked bifurcation or branch aneurysms with a single device, with the purpose of lowering the metal-to-artery ratio and its inherent risk of thromboembolic complications of multiple stents. We report our early experiences with this device in 17 patients in this retrospective single-center analysis.
  
  
  METHODS
  17 consecutive patients who underwent stent-assisted coil embolization of wide-necked bifurcation aneurysms with the Barrel stent were retrospectively identified. We analyzed the feasibility of successful deployment and post-treatment angiographic results. Adverse events, clinical outcome, and angiographic follow-up results were also analyzed.
  
  
  RESULTS
  Aneurysms were located in the internal carotid artery (n=3), the middle cerebral artery (n=9), the anterior communicating artery (n=3), and the basilar artery (n=2). In the immediate post-treatment angiography, adequate occlusion (neck remnant or total occlusion) was observed in 16/17 (94.1%) of aneurysms. One patient experienced a transient ischemic attack. No permanent neurologic deficits were observed. 13/17 (76.5%) patients underwent short-term follow-up angiography after 3 months, all of which showed adequate occlusion of the aneurysm.
  
  
  CONCLUSIONS
  In this small retrospective single-center analysis we show that stent-assisted coiling with the Barrel stent is a safe and effective option for the endovascular treatment of intracranial wide-necked bifurcation aneurysms.
authors.affiliation: Department of Neuroradiology, Saarland University Hospital, Homburg/Saar, Germany.
authors.forename: Ruben
authors.initials: R
authors.lastname: Mühl-Benninghaus
authors.affiliation: Department of Neuroradiology, Saarland University Hospital, Homburg/Saar, Germany.
authors.forename: Andreas
authors.initials: A
authors.lastname: Simgen
authors.affiliation: Department of Neuroradiology, Saarland University Hospital, Homburg/Saar, Germany.
authors.forename: Wolfgang
authors.initials: W
authors.lastname: Reith
authors.affiliation: Department of Neuroradiology, Saarland University Hospital, Homburg/Saar, Germany.
authors.forename: Umut
authors.initials: U
authors.lastname: Yilmaz
mesh_terms: D000328:Adult; D000368:Aged; D000792:Angiography / Q000639:trends; D001488:Basilar Artery / Q000000981:diagnostic imaging / Q000601:surgery; D001807:Blood Vessel Prosthesis / Q000639:trends; D057510:Endovascular Procedures / Q000295:instrumentation* / Q000639:trends*; D005260:Female; D006801:Humans; D002532:Intracranial Aneurysm / Q000000981:diagnostic imaging* / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D015607:Stents / Q000639:trends*; D016896:Treatment Outcome
keywords: Aneurysm; Angioplasty; Coil; Device; Stent