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Anastomosis
Definition:
An anastomosis is a surgical connection between 2 structures. It usually means a connection that is created between tubular structures, such as blood vessels or loops of intestine. For example, when a segment of intestine is surgically removed, the 2 remaining ends are sewn or stapled together (anastomosed), and the procedure is referred to as an intestinal anastomosis. Information:
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Examples of surgical anastomoses are colostomy (an opening created between the bowel and the abdominal skin) and arterio-venous fistula (an opening created between an artery and vein) for hemodialysis. A pathological (caused by disease) anastomosis can result from trauma or infection and may involve veins, arteries, or intestines. These are usually referred to as fistulas. In the cases of veins or arteries, traumatic fistulas usually occur between artery and vein. Traumatic intestinal fistulas usually occur between 2 loops of intestine (entero-enteric fistula) or intestine and skin (enterocutaneous fistula). References:
Townsend CM, Beauchamp RD, Evers BM, Mattox KL. Sabiston Textbook of Surgery, 17th ed. St. Louis, MO: WB Saunders; 2004: 1439-1464. Feldman M, Friedman LS, Sleisenger MH, eds. Sleisenger & Fordtran’s Gastrointestinal and Liver Disease. 7th ed. Philadelphia, PA: WB Saunders; 2002:2075.
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