Medical high-protein nutrition therapy and loss of muscle mass in adult ICU patients: A randomized controlled trial
Abstract
BACKGROUND & AIMS
The degradation of muscle mass and loss of functional proteins due to catabolism are associated with adverse outcomes in critically ill patients. While an adequate supply of protein within a medical nutrition concept is suggested to minimize proteolysis, the specificities on appropriate dosage and timing are still under debate. The current study aimed to evaluate the effect of two different quantities of protein as part of a standardized energetically controlled nutrition therapy for the preservation of muscle mass in the later phase of critical illness.
METHODS
A randomized controlled trial was conducted in 42 critically ill patients (age 65 ± 15; 12 females; SAPS 45 ± 11; TISS 20 ± 7; SOFA-score 7 ± 3). The subjects were randomly assigned to either the intervention (1.8 g protein/kg body weight [BW]/d) or standard (1.2 g protein/kg BW/d) group. Nutrient supply via enteral and/or parenteral nutrition was calculated based on the individual energy expenditure measured by indirect calorimetry and target protein content. Quadriceps muscle layer thickness (QMLT) was observed through sonography at inclusion, and during the follow-up period, two and four weeks after inclusion. The measurement points were fixed on two sides at the midpoint and two-thirds between the anterior superior iliac spine and top of the patella. The data were analyzed descriptively wherein chi-squared tests or unpaired two-samle t-tests checked group differences. Daily changes in muscle…
How strong is the evidence?
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. Reported size: 42 participants or records.
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