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AJNR - American Journal of Neuroradiology

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American Journal of Neuroradiology 25:1086-1088, June-July 2004
© 2004 American Society of Neuroradiology

Case Report
INTERVENTIONAL

Alteration in the Venous Drainage of a Dural Arteriovenous Fistula following Angioplasty

Arturo Gutierrez^a, Huy M. Do^a and Michael P. Marks^a

^a From the Department of Radiology, Stanford University Medical Center, Stanford, CA

Address correspondence to Michael P. Marks, MD, Department of Radiology Stanford University Medical Center, 300 Pasteur Drive, Stanford, CA 94305-5105

Summary: The pattern of venous drainage from a dural arteriovenous fistula (DAVF) has been shown to affect the natural history of these lesions. Angioplasty and stent placement of the dural sinuses have been described to improve outflow in venous hypertensive states and may improve the venous drainage pattern from a DAVF. We report the case of a patient with a benign but stenosed type IIa transverse sinus DAVF who underwent angioplasty to improve venous outflow. This resulted in conversion of the DAVF to a more malignant type IIb drainage pattern with reflux into the cortical venous system.

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