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Hepatobiliary Complications in Healthy, Intra-abdominally Infected, and High-Output Fistula Rats Receiving Total Parenteral Nutrition

Division of General Surgery, Veterans General Hospital-Kaohsiung, National Yang-Ming Medical College, Taiwan

This study examines the pathophysiology of hepatobiliary complications induced by total parenteral nutrition (TPN) by using animal models that underwent cecal ligation to produce intra-abdominal infection and received an enterostomy to mimic a high-output fistula, which causes the interruption of enterohepatic circulation of bile salt. Aspartate transaminase was elevated after TPN ( p < . 05). Alkaline phosphatase was increased in animals receiving TPN plus an enterostomy (p < .05). Serum albumin was significantly decreased in animals receiving TPN plus undergoing cecal ligation or enterostomy (p < .05). Liver weight and liver protein and water content decreased in animals receiving TPN alone (p < .05). Liver water content increased in animals receiving TPN plus undergoing cecal ligation (p < .05). Liver lipid content increased after TPN and to a significant degree in rats receiving TPN plus undergoing cecal ligation or enterostomy (p < .05). Bile flow diminished after TPN and to a level reaching significance in animals receiving TPN plus undergoing cecal ligation or enterostomy ( p < .05). Reduction of bile flow, decrease of biliary cholesterol secretion, and increase of biliary bilirubin secretion, which may be the cause of TPN-induced bilirubinate stones, were most significant in animals receiving TPN plus undergoing cecal ligation (p < .05). In conclusion, TPN can induce hepatic dysfunction and bilirubinate stones, but these complications are more common in animals with associated intra-abdominal infection or high-output fistula. (Journal of Parenteral and Enteral Nutrition 17:449-453, 1993)

Journal of Parenteral and Enteral Nutrition, Vol. 17, No. 5, 449-453 (1993)
DOI: 10.1177/0148607193017005449


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