What is atrioventricular fistula?
Atrioventricular fistula is a type of connection between veins and arteries. This abnormal connection increases the diameter of the blood vessel and can change the way the blood flows in the body. In patients undergoing kidney treatment, it is often surgically created in patients undergoing kidney treatment to provide access to the necessary blood vessels and to provide a place for accepting the blood purified. However, it may occur as a result of congenital abnormalities, as a result of arterial disease or due to injuries, such as wounds from weapons and sting shots.
One of the primary advantages of surgically created atrioventricular fistula is that it can be used for several years in patients with chronic kidney conditions without having to replace them. During hemodialysis, blood is removed from the blood vessels, cleaned and then returned to the veins. Fistula is associated with a dialysis machine and blood leaves and returns to the fistula site during treatment. The most common website for atrioventricular fistula used in dialysis is beforeelbow. By connecting the artery with the vein, the resulting blood vessel is large enough to handle increased blood volumes.
After atrioventricular fistula, it is surgically created for a kidney patient, usually taking one and three months to be used for dialysis treatment. The place must be allowed to recover adequately in order to tolerate pressure on the blood flow. Patients may not be allowed to drive or lift heavy weights while he is written. Patients may be trained to monitor their fistulas and recognize signs of potential problems such as blood clots.
Some types of atrioventricular fistulas may be harmful to human health rather than beneficial, usually the case where fistula results from injury or include the main artery in the body. For example, if a fistula is created including although aortic, the heart may have to work harder to ensure that sufficient amounts of blood bloodHe tacks all the necessary tissues. Some large congenintal fistulas may require surgical correction depending on their position and the patient's general health. In many cases, the blood will travel directly from the artery to the vein, instead of entering capillaries, such as the expected path of normal blood flow. This may be dangerous because many tissues receive blood from small capillaries and insufficient blood flow can result in tissue death.