Ear Necrosis Resulting from the Endovascular Onyx-18 Embolization of a Dural Arteriovenous Fistula Fed by the Posterior Auricular Artery

Authors: Jankowitz, Brian T.; Vora, Nirav; Jovin, Tudor; Horowitz, Michael

Source: Journal of Neuroimaging, Volume 19, Number 3, July 2009 , pp. 259-262(4)

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Abstract:

BACKGROUND AND PURPOSE

The treatment of a dural arteriovenous fistula (DAVF) can involve surgery, radiosurgery, or endovascular embolization. New embolization techniques and agents have expanded the role of endovascular treatment. METHODS

We report the endovascular embolization with Onyx-18 of a DAVF fed by the posterior auricular artery. RESULTS

The DAVF was successfully embolized; however, the patient's ear developed ischemic necrosis of the superolateral pinna. CONCLUSIONS

Onyx-18 can provide high rates of success in the treatment of DAVFs in well-selected patients. Risks of end organ ischemia must be considered during endovascular embolization and when counseling patients regarding procedural risk.

J Neuroimaging 2009;19:259-262.

Keywords: Onyx; posterior auricular artery; dural arteriovenous fistula; dural AVF; ischemic necrosis

Document Type: Research article

DOI: http://dx.doi.org/10.1111/j.1552-6569.2008.00291.x

Affiliations: 1: From the Department of Neurosurgery, Minimally Invasive EndoNeurosurgery Center, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania (BTJ, MH); and Department of Neurology, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania (NV, TJ).[Correction added after online publication 10-June-2009: Received and revised dates have been corrected.]

Publication date: 2009-07-01