This multicentric randomized controlled trial aims to evaluate whether indirect calorimetry (IC)-guided nutritional support improves patient-centered outcomes in critically ill adult patients compared to standard formula-based nutritional strategies. The study includes mechanically ventilated patients expected to remain in the ICU for more than 72 hours. The intervention group will receive nutritional targets based on measured resting energy expenditure using the QNRG+ device, with a gradual escalation of energy delivery following current ESPEN guidelines. The primary outcome is quality of life at 3 months post-ICU admission, assessed using the EQ-5D-5L. Secondary outcomes include functional recovery, muscle preservation, infection rates, and rehospitalization. This study is the first to assess the long-term impact of IC-guided nutrition on recovery and quality of life using a patient-centered approach.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
OTHER
Masking
NONE
Enrollment
356
* Nutritional targets measured by IC starting on Day 4 * Repeated IC measurements 2 times weekly performed with the QNRG+ device * Gradual escalation to 80%-100% caloric coverage by Day 4
* Nutritional targets determined using predictive equations (pragmatic, set at local level) * Escalation as per local protocol
Geneva University Hospital
Geneva, Switzerland
GHOL
Nyon, Switzerland
Zürich University Hospitals
Zurich, Switzerland
Quality of life (EQ-5D-5L)
Measured using the EQ-5D-5L: 0-100
Time frame: At 3 months after ICU admission
Mortality
Time frame: Up to 3 months after ICU admission
Nosocomial infection
Defined as the initiation of a new antibiotic treatment lasting at least 72 hours, associated with a documented diagnosis of infection in the patient's chart
Time frame: Up to 28 days after ICU admission
Pressure soar
Time frame: Up to 28 days after ICU admission
Energy deficit in kcal
according to the energy target defined by IC or predictive formula depending on the randomization group
Time frame: Up to 28 days after ICU admission
Protein deficit in grams
according to the protein target defined by predictive formula
Time frame: Up to 28 days after ICU admission
Ventilation-free days
Time frame: Measured at day 28 after ICU admission
ICU free-days
Time frame: Measured at day 28 after ICU admission
Functional recovery: Bartel Index
Using Barthel Index: 0-100
Time frame: At ICU discharge or up to 28 days after ICU admission and at 3 months after ICU discharge
Gerneral well-being: Edmonton Symptom Assessment Scale
Using Edmonton Symptom Assessment Scale (ESAS) : 0-90
Time frame: At ICU discharge or up to 28 days after ICU admission and at 3 months after ICU discharge
Readmission and rehospitalization rates
Time frame: Until 3-month post-ICU admission
Discharge place
Time frame: Until 3 months after ICU admission
Return to work
Time frame: Until 3 months after ICU admission
Disability and functioning: WHO Disability Assessment Schedule
Using WHO Disability Assessment Schedule (WHODAS 2.0): 0-48
Time frame: At 3-month post ICU admission
Disability and functioning: Clinical Frailty Scale
Using Clinical Frailty Scale (CFS): 1-9
Time frame: At 3-month post ICU admission
Disability and functioning: Short-form 12
Using Short-form 12 (SF-12): 0-100
Time frame: At 3-month post ICU admission
Disability and functioning: MOCA-5
Using montreal cognitive assessment- 5 min (MOCA-5): 0-15
Time frame: At 3-month post ICU admission
Disability and functioning: Patient Health Questionnaire-9
Using Patient Health Questionnaire-9 (PHQ-9): 0-27
Time frame: At 3-month post ICU admission
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