Arteriovenous fistula

Arteriovenous fistula
Illustration of an arteriovenous fistula
SpecialtyCardiology 

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

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