AVMs can occur anywhere in the body and have been found in the arms, hands, legs, feet, lungs, heart, liver, and kidneys. However, 50% of these malformations are located in the brain, brainstem, and spinal cord.
Arteriovenous malformations (AVMs) are blood vessel defects that occur before birth when the fetus is growing in the uterus (prenatal development). The blood vessels appear as a tangled mass of arteries and veins.
They are usually benign. Your eye doctor will monitor them.
Barbiturate comas are used to protect the brain during major brain surgery, such as the removal of arteriovenous malformations or aneurysms
Telangiectasias-- Very small arteriovenous malformations, or connections between the arteries and veins. The result is small red spots on the skin known as "spider veins."
AVMs can cause bleeding into the gastrointestinal tract, resulting in hematemesis (vomiting blood) or melena (black or tarry stools containing blood).
Vascular malformations can potentially occur many years after radiation therapy to the brain. Additionally, it is also assumed that severe or repeated head trauma can cause cerebral capillaries to bleed.
The radiation takes months to exert its complete effect, and success can only be measured over the course of the following two years. A year after the procedure, 50-75% of treated AVMs are completely blocked.
Cavernous malformations occur in people of all races and both sexes. The male-female ratio is about equal. Family history may be predictive, especially in patients of Hispanic descent.
Arteriovenous malformation is not one of the causes of schizophrenia. Arteriovenous malformation affects the heart and blood vessels, not the brain.
Emile Holman has written: 'Abnormal arteriovenous communications' -- subject(s): Arteriovenous Fistula
none of your bemusement
An arteriovenous malformation is a congenital disorder in which arteries are connected directly to veins rather than through capillaries which distribute oxygen and nutrients.