Onyx reflux into the parent artery is a rare and sometimes significant complication in the treatment of cerebral arteriovenous malformations (AVMs). We report a patient who presented with Onyx reflux into the M1 segment of the middle cerebral artery (MCA) during embolization of a right temporal AVM. The refluxed Onyx cast was successfully removed by a mechanical thrombectomy device using a self-expandable and fully retrievable Solitaire AB stent.
SaatciIGeyikSYavuzK. Endovascular treatment of brain arteriovenous malformations with prolonged intranidal Onyx injection technique: Long-term results in 350 consecutive patients with completed endovascular treatment course. J Neurosurg2011; 115: 78–88.
2.
LiMGuoQLiuW. Liquid embolic Onyx reflux to basilar artery retrieved by Solitaire AB stent in the treatment of arteriovenous malformations. JVIR2015; 01.024.
3.
SenturkC. Mechanical removal of migrated Onyx due to microcatheter rupture during AVM Embolization: A technical case report. Cardiovasc Intervent Radiol2015; 38(6): 1654–1657.
4.
MichaelSGSwarnkarASLatorreJG. Revascularization of Onyx induced intra-operative occlusion of vertebro-basilar artery using the Merci device. Neurocrit Care2010; 12: 269–271.
5.
StampflSHartmannMRinglebPA. Stent placement for flow restoration in acute ischemic stroke: A single-center experience with the Solitaire stent system. AJNR Am J Neuroradiol2011; 32: 1245–1248.
6.
FahedRClarençonFSourourNA. Rescue N-butyl-2 cyanoacrylate embolectomy using a Solitaire FR device after venous glue migration during arteriovenous malformation embolization: Technical note. J Neurosurg2016; 125(1): 173–176.
7.
PerezMAMiloslavskiEFischerS. Intracranial thrombectomy using the Solitaire stent: A historical vignette. J NeuroIntervent Surg2012; 4: e32.
