Arteriovenous fistula
Conditions
Interventional Radiology
What is an arteriovenous fistula?An arteriovenous fistula is when an artery connects directly to a vein. This is an abnormality, as blood usually flows from arteries into smaller capillaries, where the oxygen and nutrients carried by the blood can be distributed to tissues, before passing into the veins. If these capillaries are bypassed by the fistula, the blood supply to nearby tissues is decrea