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The Barrel stent: new treatment option for stent-assisted coiling of wide-necked bifurcation aneurysms—results of a single-center study
  1. Ruben Mühl-Benninghaus,
  2. Andreas Simgen,
  3. Wolfgang Reith,
  4. Umut Yilmaz
  1. Department of Neuroradiology, Saarland University Hospital, Homburg/Saar, Germany
  1. Correspondence to Dr Ruben Mühl-Benninghaus, Department of Neuroradiology, Saarland University Hospital, Kirrberger Straße, Homburg 66421, Germany; ruben.mbe{at}


Purpose 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.

Materials and 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.

  • Aneurysm
  • Angioplasty
  • Coil
  • Device
  • Stent

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  • Contributors RM-B: Substantial contributions to the conception, design, analysis and interpretation of data for the work; drafting the work and revising it critically for important intellectual content of the work. RM-B, AS, WR and UY: final approval of the version to be published; agreement to be accountable for all aspects of the work in ensuring that questions related to the accuracy or integrity of any part of the work are appropriately investigated and resolved. AS: substantial contributions to the design of the work and acquisition of data for the work. AS, WR and UY: revising the work critically for important intellectual content. WR: substantial contributions to the acquisition and interpretation of data for the work. UY: substantial contributions to the design of the work and acquisition and analysis of data for the work.

  • Competing interests None declared.

  • Ethics approval Ethics approval was obtained from Ethik-Kommission der Ärztekammer des Saarlandes.

  • Provenance and peer review Not commissioned; externally peer reviewed.