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Endovascular rescue of a misshapen intracranial stent: report of two cases
  1. Michael Chen1,
  2. Lindsay Goldstein-Smith2
  1. 1Rush University Medical Center, Chicago, Illinois, USA
  2. 2Rush University Medical Center, Chicago, Illinois, USA
  1. Correspondence to Michael Chen, Rush University Medical Center, 1725 West Harrison Street, Suite 1121, Chicago, IL 60612, USA; Michael_Chen{at}


Inadvertent deformation and displacement of a fully deployed closed-cell intracranial nitinol stent may occur with manipulation of other devices through or beyond them. Such displaced and deformed stents may obstruct the lumen, risking formation of thromboemboli, and/or fail to no function as a scaffold to assist with coil embolization. We review two such cases whereby an Alligator retrieval device (ARD) (ev3, Irvine, California, USA) was used to salvage a deployed misshapen intracranial stent.

  • Intracranial stent
  • alligator retrieval device
  • outreach catheter
  • enterprise stent
  • stent retrieval
  • aneurysm
  • catheter
  • complication
  • stent
  • technique

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  • Competing interests None.

  • Patient consent Obtained.

  • Ethics approval This study was conducted with the approval of the Rush University Medical Center Retrospective Stroke Registry ID 07110702.

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