• Clin Nutr · Feb 2017

    Observational Study

    Impact of the reduction of the recommended energy target in the ICU on protein delivery and clinical outcomes.

    • M M Berger, L Soguel, M Charrière, B Thériault, F Pralong, and M D Schaller.
    • Service of Adult Intensive Care Medicine and Burns, University Hospital CHUV, Lausanne, Switzerland. Electronic address: Mette.Berger@chuv.ch.
    • Clin Nutr. 2017 Feb 1; 36 (1): 281-287.

    Background & AimsEnergy targets are a matter of debate for intensive care (ICU) patients. As the guidelines have evolved, energy targets have been reduced, while the protein intake objectives have increased. The impact of these changes remains largely unknown. This quality study aimed at investigating the clinical impact of these changes in patients with an ICU stay >3 days.MethodsObservational cohort study over two 3 months periods (A, B), with distinct prevailing nutrition recommendations in patients admitted consecutively to a multidisciplinary ICU. Inclusion criterion: ICU stay >3 days. Recorded variables: severity scores, energy target and delivery, protein delivery, feeding route, length of stay (ICU, hospital) and hospital outcome. Data as mean, SD and IQR.ResultsThe analysis included 389 patients, and 3920 observation days. Except for patient age (A versus B: 57.8 and 62.3 years; p = 0.010) and NRS (4.3 vs 3.9 respectively p = 0.002), the cohorts were similar. Compared to A, the mean prescribed energy target decreased by 125 kcal (1947 kcal/d vs. 1822 kcal*day-1 respectively), resulting in lower energy delivery (1353 kcal*day-1 vs. 1238 kcal*day-1; p < 0.0001), and reduced protein delivery (81 g*day-1 vs. 65 g*day-1: p < 0.0001). These differences were associated in survivors with prolonged mechanical ventilation (5.0 days vs. 6.7 days; p = 0.004), extended ICU stay (8.5 vs. 9.9 days; p = 0.0036), and longer hospital stay (23.4 vs. 26.4 days respectively; p = 0.028). Mortality was unchanged.ConclusionsA linear reduction in energy target recommendation without changing the feed composition led to an unplanned and significant reduction in protein delivery, which was associated with a prolonged duration of ventilation and an extended hospital stay.Copyright © 2016 Elsevier Ltd and European Society for Clinical Nutrition and Metabolism. All rights reserved.

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