Protein-sparing therapy after major abdominal surgery: lack of clinical effects. Protein-Sparing Therapy Study Group

Objective A prospective multicenter randomized trial was designed to evaluate the clinical efficacy of postoperative protein-sparing therapy.Summary Background Data The metabolic effect of postoperative protein-sparing therapy has been shown by several studies, but the clinical utility of this treatment has not been investigated by large prospective trials.Methods Six hundred seventy-eight patients undergoing major elective abdominal surgery were randomly assigned to receive either protein-sparing therapy after surgery (protein-sparing therapy group) or conventional therapy (control group). The patients were monitored for postoperative complications and mortality.Results The rate of major postoperative complications was similar in both groups (protein-sparing therapy group, 19.5%; control group, 20.9%; p = 0.66) as were the overall postoperative mortality rates (4.7% and 3.5%, respectively; p = 0.43).Conclusions The present study indicates that routine protein-sparing therapy for patients normonourished or mildly malnourished undergoing major abdominal surgery is not clinically justified.