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Hemorrhagic stroke
Short report
Failure of aneurysm occlusion by flow diverter: a role for surgical bypass and parent artery occlusion
  1. Thomas Mattingly1,
  2. Brian Van Adel2,
  3. Erin Dyer3,
  4. Pablo Lopez-Ojeda4,5,
  5. David M Pelz4,5,
  6. Stephen P Lownie4,5,
  7. Thomas Marotta6,
  8. Melfort Boulton4,5
  1. 1Department of Neurosurgery, George Washington University Medical Faculty Associates, Washington, DC, USA
  2. 2Department of Neurology, McMaster University, Hamilton, Ontario, Canada
  3. 3Department of Neurosurgery, Cleveland Clinic, Cleveland, Ohio, USA
  4. 4Department of Medical Imaging, University of Western Ontario, London, Ontario, Canada
  5. 5Clinical Neurological Sciences, University of Western Ontario, London, Ontario, Canada
  6. 6Department of Radiology, St Michael's Hospital, Toronto, Ontario, Canada
  1. Correspondence to Dr T Mattingly, Department of Neurosurgery, George Washington University Medical Faculty Associates, 2150 Pennsylvania Ave, NW, Suite 7-420, Washington, DC 20037, USA; tmattingly{at}mfa.gwu.edu

Abstract

Flow diverters represent a paradigm shift in the treatment of aneurysms. However, unusual and poorly understood complications are being reported. We present a case of a giant internal carotid artery terminus aneurysm treated with flow diversion that progressively and symptomatically enlarged despite a reduction in the filling portion. Complete occlusion of the aneurysm and reduction in mass effect occurred through superficial temporal artery– middle cerebral artery bypass and parent artery occlusion. Incomplete aneurysm occlusion following flow diversion has been reported, but mechanisms and predisposing factors are speculative and definitive solutions have not been described. This case illustrates a potential solution.

  • Flow Diverter
  • Aneurysm
  • Complication
  • Technology

https://doi.org/10.1136/neurintsurg-2013-011062

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