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Influence of high caloric parenteral nutrition on catabolism and cellular immune competence in carcinoma patients.

Urea production rate and cellular immune reactivity measured by skin stamp test were used to determine the extent of protein catabolism in 30 surgical patients with histologically diagnosed gastrointestinal carcinoma. All patients received high-caloric total parenteral nutrition (TPN) preoperatively. In those patients with an urea production rate of less than 15 g/day (according to definition of non-catabolic state) TPN was discontinued and the operation performed immediately, whereas the remaining 13 patients with an urea production rate exceeding 15 g/day (according to definition a catabolic state) were given TPN a total of 10 days prior to operation. Nine of the 13 patients could be converted from a catabolic to a non-catabolic state. Only one of these patients died, whereas of the remaining 4 patients who - according to the definition - remained in a catabolic state, two died. The course of nutrition positively influenced the serum levels of IgG, IgA and IgM. The skin stamp test was positive in only three of the 13 patients. Obviously, a positive skin test reaction occurred only in those patients who could be returned to a non-catabolic state during the course of TPN. By means of preoperative TPN catabolic patients can be converted into a non-catabolic state which is associated with a reduction in morbidity and mortality. Moreover, high caloric parenteral nutrition rich in amino acids seem to improve the prognosis for patients with negative skin test reactivity.