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A member asked:
Why is an arteriovenous fistula in a limb considered life-threatening?
A doctor has provided 1 answer
Overload the heart: An AV Fistula is a 'short-circuit' between the arterial and venous systems. In an extremity it can deprive the remainder of the limb of adequate blood flow, causing pain or even tissue loss. The major problem is that AVFs over time tend to shunt more and more blood, causing a marked increase in venous flow back to the heart and potentially causing causing strain or even pump failure.
Answered 5/10/2017
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