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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.


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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