An arteriovenous fistula (AVF) or vascular access is a surgically created site to obtain easy access to the blood circulation. It is situated just under the skin and is not exposed. The access site is usually on the arm and rarely on the thighs. This access enables blood to be withdrawn and re-infused safely, quickly and efficiently during dialysis.
Each time you have haemodialysis this access is used and is connected to a dialysis machine. One tube takes the blood to the dialysis machine to be filtered. Another tube returns the clean blood to your body. This process of taking blood to and from your body to the dialysis machine is repeated during a dialysis run
There are three types of vascular access:
瘘管移植洗肾导管