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Subdural contrast effusion during endovascular therapy: case report.
Rasmus Holmboe Dahl1,2, Vagn Eskesen3, Goetz Benndorf4,5
1Department of Radiology, University Hospital Rigshospitalet, Copenhagen, Denmark.
Acta Neurochirurgica
|September 12, 2019
Summary
Subdural contrast effusion (SCE) is a rare complication of intraarterial contrast administration. This case highlights its mimicry of subdural hematoma during endovascular treatment of dural arteriovenous fistulas.
Area of Science:
- Neurology
- Radiology
- Vascular Surgery
Background:
- Intraarterial contrast administration is common in neuroendovascular procedures.
- Subdural contrast effusion (SCE) is a rare complication.
- Dural arteriovenous fistulas (DAVFs) require precise diagnostic and therapeutic interventions.
Observation:
- A case of subdural contrast effusion (SCE) occurred during endovascular treatment of an intracranial dural arteriovenous fistula (DAVF).
- The SCE mimicked an acute subdural hematoma on imaging.
- The condition presented during the endovascular procedure.
Findings:
- Computed tomography (CT) and Dyna CT are essential for differentiating SCE from subdural hematoma.
- Early neurological assessment is crucial for patient management.
- Repeated large-volume contrast injections into occluded DAVF territories may cause SCE.
Implications:
- Accurate differentiation between SCE and subdural hematoma is vital for appropriate patient management.
- Understanding the mechanism of SCE can help prevent its occurrence.
- This observation contributes to the understanding of rare complications in neuroendovascular procedures.
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