What is Dural arteriovenous malformations?

Dural arteriovenous malformations, also known as duralumin arteriovenous fistula (Davf), is a condition where arteries and veins are united abnormally. The abnormal connectivity itself is called fistula; Normally, arteries and veins do not connect at all. Specific blood vessels, which are usually involved in the dural arteriovenous malformation, are meningal artery and meningal veins found in the central nervous system (CNS). In some cases, this could include meningal and duralumin venous sinus, a venous channel lying in the dura mater, or leather meningal layers surrounding the brain and spinal cord. Some patients may experience more than one occurrence. Cranial Davf occurs in the brain and comes with branches of carotid artery. This type of duralumin arteriovenous malformation usually occurs in the dura convexity, part of the dura mater, which overlaps the hemisphere of the brain; or in the dura tent, part of the meningal layer located between front and hindbrain. The second type of dural arteriovenous malformAce, the backbone Davf, occurs in the spinal cord and comes from duralumin arterial branches. Usually it is located at the bottom of the spine.

The cause of the dural arteriovenous malformation is not known, which may be due to the fact that this is an extremely rare condition; Less than one of one million people will get it. Most often it affects people over 40 years of age, with cranial Davf more common in women and backbone Davf more frequent in men.

symptoms of dural arteriovenous malformation usually depend on the type of fistula. People with cranial Davf can experience Bruit to hear the sound; pulse tinnitus or ringing in the ears; Pulsatile Proptosis, OR bulging eyes; Severe headache; or brands similar to stroke. People with Spinal Davf are more likely to swelling of the spinal cord, resulting in symptoms such as slow and progressive loss of limb and erectile dysfunction in men. More serious complications, especially in cases toRani Davf, include brain bleeding.

Gold diagnostic standards for Dural arteriovenous malformations are cerebral angiography for the cranial Davf and the backbone angiography for the backbone Davf. Using these techniques of medical imaging, doctors can explore the affected blood vessels, especially arteries and veins. Two types of treatment used are open surgery or endovascular surgery. Open surgery involves disconnecting fistula, while endovascular surgery is used to destroy fistula by blocking the affected blood vessels.