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Updated: Feb 2, 2026

A Modified Technique for Arteriovenous Fistula Construction in Rabbits
Published on: February 10, 2023
Type I Spinal Arteriovenous Fistula with Ventral Intradural Venous Drainage: A Proposal of a Modified Classification
Nimer Adeeb1, Justin M Moore1, Abdulrahman Y Alturki1,2
1Department of Neurosurgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA.
Objectives:
Spinal arteriovenous fistula (AVF) is the most common spinal vascular lesion and constitutes an abnormal communication between a feeder artery and a draining vein. Arterialization of the venous plexus leads to venous hypertension; consequent edema and congestion of the spinal cord are associated with progressive neurological decline.
Patients And Methods:
In this report, we describe two unique cases of type I cervical spinal AVF, in which a radiculomeningeal artery forms an intradural fistula that drains into the ventral venous plexus.
Results:
Both patients underwent surgical obliteration of the fistula with complete occlusion confirmed on postoperative angiography.
Conclusion:
Both cases do not fit into the current classification scheme. A modified classification is proposed.
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