Arteriovenous fistula | |
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Illustration of an arteriovenous fistula | |
Specialty | Cardiology |
An arteriovenous fistula is an abnormal connection or passageway between an artery and a vein.[1] It may be congenital, surgically created for hemodialysis treatments, or acquired due to pathologic process, such as trauma or erosion of an arterial aneurysm.[2]