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Subdural contrast effusion during endovascular therapy: case report

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Accumulation of contrast medium in the subdural space after diagnostic intraarterial contrast administration is a rare observation. The authors report the case of a subdural contrast effusion (SCE) presenting during endovascular treatment of an intracranial dural arteriovenous fistula (DAVF) mimicking an acute subdural hematoma. Differentiation between the two by computed tomography (CT) or intraprocedural Dyna CT and early neurological examination can be crucial for patient management. We believe that repeated large-volume contrast injections via large-bore intermediate catheters into the territory of an (even partly) occluded DAVF may induce leakage of contrast medium into the extravascular subdural space thereby causing a SCE.

Original languageEnglish
JournalActa Neurochirurgica
Volume161
Issue number11
Pages (from-to)2403-2407
Number of pages5
ISSN0001-6268
DOIs
Publication statusPublished - Nov 2019

ID: 58495354