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Proximal migration and compaction of an Enterprise stent into a coiled basilar apex aneurysm: a posterior circulation phenomenon?
  1. Shervin R Dashti1,2,
  2. David Fiorella1,3,
  3. Maria M Toledo1,4,
  4. Yin Hu1,
  5. Cameron G McDougall1,
  6. Felipe C Albuquerque1
  1. 1Division of Neurological Surgery, Barrow Neurological Institute, St Joseph's Hospital and Medical Center, Phoenix, Arizona, USA
  2. 2Norton Neuroscience Institute, Norton Hospital, Louisville, Kentucky, USA
  3. 3New York Spine and Brain Surgery, Stony Brook University Medical Center, New York City, New York, USA
  4. 4Department of Neurosurgery, University of Puerto Rico Medical School, San Juan, Puerto Rico, USA
  1. Correspondence to Dr Felipe C Albuquerque, c/o Neuroscience Publications, Barrow Neurological Institute, 350 West Thomas Road, Phoenix, AZ 85013, USA; neuropub{at}


A patient with a giant partially thrombosed basilar apex aneurysm was treated with balloon-assisted coil embolization. At the conclusion of the embolization, an Enterprise stent was placed from the upper basilar artery to the left P1 segment. Follow-up angiography 4 months later showed that the distal stent had pulled out of the posterior cerebral artery and was in the coil mass within the aneurysm. Angiography clearly showed that the stent had migrated down the basilar artery and that the artery was now kinked proximal to the stent. Nonetheless, the left posterior cerebral artery and the basilar artery were still widely patent. This is the first documented case in which a stent ‘compacted’ into a completed coiled aneurysm in a delayed fashion.

  • Aneurysm
  • brain
  • cerebral aneurysm
  • device
  • Enterprise stent
  • stent

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  • Competing interests None declared.

  • Ethics approval This study was conducted with the approval of our institutional review board.

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

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