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Updated: Mar 26, 2026
07:30
Creating Radio-cephalic Arteriovenous Fistula in the Forearm with a Modified No-Touch Technique
Published on: April 1, 2022
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Spinal epidural arteriovenous fistulas.
Waleed Brinjikji1, Rong Yin2, Deena M Nasr3
1Department of Radiology, Mayo Clinic, Rochester, Minnesota, USA.
Journal of Neurointerventional Surgery
|January 22, 2016
Summary
Spinal epidural arteriovenous fistulas (SEDAVFs) are rare vascular malformations. Catheter angiography is crucial for diagnosing SEDAVFs, guiding treatment with embolization or surgery.
Area of Science:
- Neurology
- Radiology
- Vascular Surgery
Background:
- Spinal epidural arteriovenous fistulas (SEDAVFs) are uncommon and complex vascular lesions.
- They often cause neurological deficits due to spinal cord compression or congestion.
Purpose of the Study:
- To detail the diverse clinical and imaging characteristics of SEDAVFs.
- To highlight the diagnostic role of catheter angiography in characterizing these lesions.
- To review current treatment strategies for SEDAVFs.
Main Methods:
- Review of imaging findings on MR angiography/MRI and catheter angiography.
- Anatomical characterization of arterial supply and venous drainage.
- Discussion of treatment modalities including endovascular embolization and surgical resection.
Main Results:
- Imaging hallmarks include high T2 signal in the spinal cord, epidural vascular engorgement, and flow voids.
- Catheter angiography reveals a dilated epidural venous pouch, identifying feeders and drainage.
- SEDAVFs in the lower spine are ventral, fed by anterior epidural arteries; in the upper spine, they are lateral.
Conclusions:
- SEDAVFs present with varied symptoms and imaging findings.
- Catheter angiography is essential for precise anatomical diagnosis.
- Treatment involves endovascular embolization or surgical intervention, with ongoing research into optimal modalities.
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