ImpACt of Very High Protein Content Enteral nUtrition Formulas on Protein Metabolism and Residual Gastric Volume in Critically Ill MUltipLe trAuma paTiEnts
This prospective observational randomized study aims to determine energy, protein intake and gastrointestinal tolerance while using enteral nutrition formulas with very high protein content and enteral nutrition formulas with normal protein content. * Differences regarding achieving protein and calorie daily targets when using enteral nutrition formulas with different protein content * Differences regarding residual gastric volume when using enteral nutrition formulas with different protein content * Differences regarding body composition when using enteral nutrition formulas with different protein content
• Adult patients (\>18 yrs) admitted to the ICU
• Multiple trauma (Injury severity score \> 18)
• Intubation and mechanical ventilation upon admission in ICU or during the first 24 hours of admission, for at least 48 h