Early postoperative enteral nutrition with arginine-omega-3 fatty acids and ribonucleic acid-supplemented diet versus placebo in cancer patients
Abstract
OBJECTIVE: To evaluate the effect of early postoperative feeding with a nutritionally complete enteral diet supplemented with the nutrients arginine, ribonucleic acid (RNA), and omega-3 fatty acids on the immune function in patients undergoing surgery for upper gastrointestinal (GI) malignancies. DESIGN: Prospective, randomized, placebo-controlled, double-blind study. SETTING: Surgical intensive care unit (ICU) in a German university hospital. PATIENTS: Forty-two consecutive patients receiving an enteral diet via needle catheter jejunostomy after GI surgery for cancer. INTERVENTIONS: Patients were randomized to receive either the arginine, RNA, and omega-3 fatty acids supplemented diet or an isocaloric and isonitrogenous placebo diet. Early enteral nutrition was started on postoperative day 1 in the surgical ICU with 20 mL/hr and progressed to the optimal goal of 80 mL/hr by postoperative day 5. MEASUREMENTS AND MAIN RESULTS: Clinical examination and adverse GI symptoms were recorded on a daily basis. Body weight was determined twice weekly. Immunoglobulin concentrations were determined by laser nephelometry. Interferon-gamma concentrations were measured with a modified enzyme-linked immunosorbent assay method. Fluorescence-activated cell scan flow cytometry was performed to analyze B cells, T lymphocytes and their subsets. Clinical patient characteristics and mean caloric intake were similar between the two groups and both formulas were well tolerated. The number of T…
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Evidence Hub reads this as a randomized trial, done in people. Its evidence level is 2 of 5 (High · randomized trial). Randomized trials of a reasonable size are the strongest single-study design.
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