• Clin Nutr · Jun 2015

    Randomized Controlled Trial

    The influence of parenteral glutamine supplementation on glucose homeostasis in critically ill polytrauma patients--A randomized-controlled clinical study.

    • Ioana Marina Grintescu, Irina Luca Vasiliu, Ioana Cucereanu Badica, Liliana Mirea, Daniela Pavelescu, Andreea Balanescu, and Ioana Cristina Grintescu.
    • Clinical Emergency Hospital of Bucharest, Intensive Care and Anaesthesiology Department, Calea Floreasca nr. 8, Sector 1, Bucharest, 014461, Romania.
    • Clin Nutr. 2015 Jun 1;34(3):377-82.

    Background & AimsRapid onset of resistance to insulin is a prominent component of stress metabolism in multiple trauma patients. Recent studies have clarified the role of amino acids (especially glutamine) in glucose transportation and the benefits of parenteral alanyl-glutamine supplementation (0.3-0.6 g/kg/day) in glucose homeostasis. The aims of this study are to evaluate the incidence of hyperglycemic episodes and the need for exogenous insulin to maintain stable glucose levels in critically ill polytrauma patients supplemented with parenteral glutamine dipeptide (Dipeptiven(®)) versus standard nutritional support.MethodsThis was an open-label randomized-controlled trial of 82 polytrauma patients aged 20-60 years old, randomly assigned into two equal groups independent of sex, age and Injury Severity Score. We excluded patients with diabetes mellitus, or renal or hepatic failure. One group received parenteral Dipeptiven(®) supplementation of 0.5 g/kg/day and the other received standard isocaloric isoproteinic nutritional support.ResultsWe found that 63% of patients in the glutamine-supplemented group had no hyperglycemic episodes; only 37% required exogenous insulin (mean daily requirement of 44 units/day). In the control group, 51% of patients required insulin (mean daily requirement 63 unit/day; p = 0.0407).ConclusionsThe effect of glutamine supplementation on glucose homeostasis is associated with a lower incidence of hyperglycemia among critically ill polytrauma patients, and leads to a lower mean daily dose of insulin. Controlled-trials.com Identifier: ISRCTN71592366 (http://www.controlled-trials.com/ISRCTN71592366/ISRCTN71592366).Copyright © 2014 Elsevier Ltd and European Society for Clinical Nutrition and Metabolism. All rights reserved.

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