Journal of Korean Neurosurgical Society

The Korean Neurosurgical Society (대한신경외과학회)
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Novel Noncrossing Y-Stent Technique Using Tapered Proximal End of a Solitaire AB Stent for Coil Embolization of Wide-Neck Bifurcation Aneurysms

  • Kwon, Hyon-Jo (Department of Neurosurgery, Daejeon-Chungnam Regional Cerebrovascular Center, Chungnam National University Hospital, Chungnam National University Medical School) ;
  • Lim, Jeong-Wook (Department of Neurosurgery, Daejeon-Chungnam Regional Cerebrovascular Center, Chungnam National University Hospital, Chungnam National University Medical School) ;
  • Byoun, Hyoung Soo (Department of Neurosurgery, Daejeon-Chungnam Regional Cerebrovascular Center, Chungnam National University Hospital, Chungnam National University Medical School) ;
  • Koh, Hyeon-Song (Department of Neurosurgery, Daejeon-Chungnam Regional Cerebrovascular Center, Chungnam National University Hospital, Chungnam National University Medical School)
  • Received : 2019.12.11
  • Accepted : 2020.03.30
  • Published : 2021.01.01
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Abstract

The crossing Y-stent method is one of the indispensable techniques to achieve sufficient neck coverage during coil embolization of bifurcation aneurysms with a wide neck and/or branch incorporation. However, the inevitable hourglass-like expansion of the second stent at the crossing point can result in insufficient vessel wall apposition, reduced aneurysm neck coverage, delayed endothelialization, and subsequent higher risks of acute or delayed thrombosis. It also interferes with engagement of the microcatheter into the aneurysm after stent installation. We expected to be able to reduce these disadvantages by installing a noncrossing type Y-stent using the Solitaire AB stent, which is fully retrievable with a tapered proximal end. Here we report the techniques and two successful cases.

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References

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