An arteriovenous fistula (AVF) is an abnormal joining of an artery and a vein. If an AVF is affecting health, early treatment can help prevent complications. An AVF occurs if an artery connects to a ...
An AV fistula may fail for various reasons, including low or poor blood flow, failure to mature, excessive pain, a sclerotic vein, and a thrombotic vein. Failure can be disheartening to a patient who ...
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