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A brain arteriovenous malformation (AVM) is a tangle of abnormal blood vessels connecting arteries and veins in the brain needing brain avm treatment in Guntur
The arteries are responsible for taking oxygen-rich blood from the heart to the brain. Veins carry the oxygen- depleted blood back to the lungs and heart. A brain AVM disrupts this vital process.
Brain AVMs are rare and affect less than 1 percent of the population.
Some people are born with them, but they can occasionally form later in life. They are rarely passed down among families genetically.
A Brain arteriovenous malformation may not cause any signs or symptoms until the AVM ruptures, resulting in bleeding in the brain.
Some people with brain AVMs may experience signs and symptoms other than bleeding related to the AVM including severe headaches, weakness, numbness or paralysis, vision loss, difficulty speaking, confusion or inability to understand others, severe unsteadiness and seizures
Per neurosurgery hospitals in Guntur, Symptoms may begin at any age but usually emerge between ages 10 and 40.
Brain AVMs can damage brain tissue over time. The effects slowly build up and often cause symptoms in early adulthood.
Once you reach middle age, however, brain AVMs tend to remain stable and are less likely to cause symptoms.
Some pregnant women may have worsened symptoms due to changes in blood volume and blood pressure.
One severe type of brain AVM, called a vein of Galen defect, causes signs and symptoms that emerge soon or immediately after birth. Signs and symptoms include swollen veins that are visible on the scalp, seizures, failure to thrive and congestive heart failure.
An AVM puts extreme pressure on the walls of the affected arteries and veins, causing them to become thin or weak. This may result in the AVM rupture and bleeding into the brain (a hemorrhage).
This risk of a brain AVM bleeding ranges around 2 percent each year. The risk of hemorrhage may be higher for certain types of AVMs, or if you have experienced previous AVM ruptures.
Some bleeds associated with AVMs go undetected because they cause no major brain damage or symptoms, but potentially life-threatening bleeding episodes may occur.
Brain AVMs account for about 2 percent of all hemorrhagic strokes each year and are often the cause of hemorrhage in children and young adults who experience brain hemorrhage.
Reduced oxygen to brain tissue. With an AVM, blood bypasses the network of capillaries and flows directly from arteries to veins. Blood rushes quickly through the altered path because it isn't slowed down by channels of smaller blood vessels.
Surrounding brain tissues can't easily absorb oxygen from the fast-flowing blood. Without enough oxygen, brain tissues weaken or may die off completely. This results in stroke-like symptoms, such as difficulty speaking, weakness, numbness, vision loss or severe unsteadiness.
Thin or weak blood vessels. An AVM puts extreme pressure on the thin and weak walls of the blood vessels. A bulge in a blood vessel wall (aneurysm) may develop and become susceptible to rupture.
As you grow, your body may recruit more arteries to supply blood to the fast-flowing AVM. As a result, some AVMs may get bigger and displace or compress portions of the brain. This may prevent protective fluids from flowing freely around the hemispheres of the brain. If fluid builds up, it can push brain tissue up against the skull (hydrocephalus).