• L A Barker, C Gray, L Wilson, B N J Thomson, S Shedda, and T C Crowe.
• Nutrition Department, The Royal Melbourne Hospital, Parkville, Victoria, Australia. labar@deakin.edu.au
• Eur J Clin Nutr. 2013 Aug 1;67(8):802-7.

Background/ObjectivesInvasive procedures such as surgery cause immunosuppression, leading to increased risk of complications, infections and extended hospital stay. Emerging research around immune-enhancing nutrition supplements and their ability to reduce postoperative complications and reduce treatment costs is promising. This randomised controlled trial aims to examine the effect of preoperative immunonutrition supplementation on length of hospital stay (LOS), complications and treatment costs in both well-nourished and malnourished gastrointestinal surgery patients.Subjects/MethodsNinety-five patients undergoing elective upper and lower gastrointestinal surgery were recruited. The treatment group (n=46) received a commercial immuno-enhancing supplement 5 days preoperatively. The control group (n=49) received no supplements. The primary outcome measure was LOS, and secondary outcome measures included complications and cost.ResultsA nonsignificant trend towards a shorter LOS within the treatment group was observed (7.1 ± 4.1 compared with 8.8 ± 6.5 days; P=0.11). For malnourished patients, this trend was greater with hospital stay reduced by 4 days (8.3 ± 3.5 vs 12.3 ± 9.5 days; P=0.21). Complications and unplanned intensive care admission rates were very low in both the groups. The average admission cost was reduced by AUD1576 in the treatment group compared with the control group (P=0.37).ConclusionsPreoperative immunonutrition therapy in gastrointestinal surgery has the potential to reduce the LOS and cost, with greater treatment benefit seen in malnourished patients; however, there is a need for additional research with greater patient numbers.

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