• M L Forchielli, K M Gura, R Sandler, and C Lo.
• Combined Program in Gastroenterology and Nutrition, Children's Hospital, Boston, Massachusetts, USA.
• J. Pediatr. Gastroenterol. Nutr. 1995 Nov 1; 21 (4): 374-82.

AbstractCholestasis often occurs in infants on total parenteral nutrition (TPN) for long periods. Amino acid formulations developed specifically for infants, namely Aminosyn PF and Trophamine, may protect against cholestasis associated with total parenteral nutrition (CATPN). The development of cholestasis may also be caused by other risk factors such as prematurity, surgery, sepsis, and extracorporeal membrane oxygenation (ECMO). To evaluate the relative effectiveness of the pediatric amino acid formulations in reducing CATPN, the courses of 70 infants < 1 year of age who received TPN for at least 14 days were reviewed. Cholestasis was defined as a conjugated serum bilirubin > or = 2 mg/dl subsequent to the initiation of TPN; CATPN was considered present when other factors related to cholestasis were ruled out. Liver function tests were recorded 24 h before starting TPN and at day 7, 15, and 21 during TPN infusion. Thirty infants (42.8%) developed cholestasis. CATPN was judged to have occurred in 15 (21.4%) of 70 infants, while 15 (21.4%) developed cholestasis secondary to other factors. Of the 15 CATPN patients, 7 had received Trophamine, 6 had received Aminosyn PF, and 2 had received both solutions. Aminosyn PF and Trophamine, along with other potential risk factors for CATPN such as antecedent surgery, sepsis, ECMO, prematurity, and nitrogen/calorie intake were analyzed by regression-analysis methods. None was statistically significant except the length of TPN (p = 0.0063). In conclusion, we cannot support the view that Trophamine is more effective than Aminosyn PF in the prevention of CATPN.

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