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A fistula is defined as a communication between two major organs. A Rectovaginal Fistula (RVF) is a tract or hole between the rectum and the vagina. It allows the involuntary passage of faeces from the rectum through the vagina. Watch The Doctors TV: Rectovaginal Fistula explained.
Vascular Surgery AV Fistula An arteriovenous (AV) fistula is an abnormal connection between an artery and a vein, which bypasses some capillaries carrying blood to tissues.