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Internal hernia: Wikis

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Internal hernias occur when there is an opening in the bowel mesentery. If a loop of bowel passes through the mesenteric defect, that loop is at risk for becoming the lead point of a small bowel obstruction. Mesenteric defects commonly occur in trauma, such as gunshot wounds to the abdomen, and mesenteric defects are intentionally created in the Roux-en-Y gastric bypass procedure. In trauma victims, the defect is usually closed, sometimes with resection of the associated bowel, which may have lost its blood supply.

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Reference Bittner JG 4th, Edwards MA, Harrison SJ, Li K, Karmin PN, Mellinger JD. Laparoscopic repair of a right paraduodenal hernia. JSLS 2009; 13(2):242-9.


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