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Abstract
The aim of this study was to use glycerol and dextrose in hypocaloric peripheral parenteral nutrition (HPNN) and investigate their effects on postoperative metabolic and nutritional responses. Thirty patients who had undergone major gastrointestinal surgery were examined in a prospective randomized study. The study period extended from the day before operation to postoperative day 7. Fifteen patients (intervention group) received 1.2 g amino acids, 1.2 g glycerol, and 0.5 g fat emulsion/kg/day (approximately 15 kcal/kg/day). The other 15 patients (control group) received 1.2 g amino acids, 1.5 g dextrose, and 0.5 g fat emulsion/kg/day (approximately 15 kcal/kg/day). After 7 days of study, both groups were found to have a decrease in body weight, mid-arm circumference, triceps skin fold, serum albumin, and transferrin and prealbumin levels, but an increase in serum cholesterol and triglyceride levels. However, the differences between them were not significant. Improvements in nitrogen balance were observed in the intervention group (p =. 035). These data suggest that advantages favoring the administration of glycerol instead of dextrose in hypocaloric parenteral nutrition could hardly be found in our investigation, except that better nitrogen equilibrium is maintained. Nonetheless, the peripheral intravenously administered ProcalAmine with fat emulsion has been well tolerated and safe for these patients, as well as more convenient for clinical use.