2024年3月19日 · They occur in the tough covering over the brain or spinal cord, known as the dura mater. The irregular passageways between arteries and veins are called arteriovenous fistulas, which can lead to bleeding in the brain or other serious symptoms. Dural AVFs are rare. They tend to occur between ages 50 and 60.

A spinal fistula, particularly spinal dural fistula, is usually an abnormal connection between an artery and a vein that are located near the covering of the spinal cord. This covering is called dura, and so the full name “Spinal dural arteriovenous fistula.”

2024年2月15日 · Spinal dural arteriovenous fistulas (SDAVF) are the most common type of spinal vascular malformation, accounting for ~70% of all such lesions. This article specifically relates to spinal dural arteriovenous fistulas.

SUMMARY: Spinal dural arteriovenous (AV) fistulas are the most commonly encountered vascular malformation of the spinal cord and a treatable cause for progressive para- or tetraplegia. They most commonly affect elderly men and are classically found in the thoracolumbar region.

Spinal dural arteriovenous fistulas account for the majority of spinal vascular malformations. They are typically located in the thoracolumbar region and are diagnosed in the middle-aged and elderly populations.

A spinal dural arteriovenous fistula (SDAVF) is an abnormal connection between arteries and veins in the dura, the outer lining of the spinal cord. Arteries and veins are the two types of major blood vessels in the body.

The fistula is a direct connection between an artery and a vein that drains the spinal cord. It is located in the dura surrounding a nerve root from the spinal cord. It produces symptoms by increasing the pressure in the vein, which congests the blood flow in the spinal cord.