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Spinal epidural arteriovenous fistula

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

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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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