Spinal epidural arteriovenous fistula

Q) What are the differences between spinal epidural arteriovenous fistulas (SEAVFs) vs spinal dural arteriovenous fistulas (SDAVFs)?

A) SDAVFs are the most common vascular shunts of the spine, but SEAVFs are very rare.

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* More common

References:
1) Kiyosue H, Matsumaru Y, Niimi Y, et al. Angiographic and Clinical Characteristics of Thoracolumbar Spinal Epidural and Dural Arteriovenous Fistulas. Stroke. 2017;48(12):3215-3222.
2) Takai K, Shojima M, Imai H, Saito N, Taniguchi M. Microsurgical and Endovascular Treatments of Spinal Extradural Arteriovenous Fistulas with or without Intradural Venous Drainage. World Neurosurg. 2018;111:e819-e829.

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