Hydrophilic polymer embolization following flow diversion of cerebral aneurysms

Neuroradiol J. 2021 Aug;34(4):363-369. doi: 10.1177/19714009211004185. Epub 2021 Mar 26.

Abstract

Foreign body embolization is a rare and potentially under-recognized complication of neuroendovascular procedures. This complication should be considered in the differential diagnosis for clinical or radiological deterioration following neurovascular interventions. We report a case of foreign body hydrophilic coating embolization that occurred following an attempted flow diversion of an intracranial aneurysm with dramatic flare-up after repeat exposure. We also provide a literature review of all reported cases of hydrophilic polymer embolization following flow diversion procedures.

Keywords: Aneurysms; embolization; flow diversion; hydrophilic.

Publication types

  • Case Reports
  • Review

MeSH terms

  • Cerebral Angiography
  • Embolization, Therapeutic* / adverse effects
  • Endovascular Procedures*
  • Humans
  • Intracranial Aneurysm* / diagnostic imaging
  • Intracranial Aneurysm* / surgery
  • Polymers / adverse effects
  • Retrospective Studies
  • Treatment Outcome

Substances

  • Polymers