At a glance
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A Longitudinal Investigation of Energy Expenditure and Substrate Utilization in Critically Ill Patients: a Prospective Observational Multi-center Study
In Brief
An observational study evaluating Indirect calorimetry for Critical Illness. Completed, enrolled 714 participants across 7 sites in 4 countries.
Detailed Summary
The metabolic alterations associated with critical illness have significant implications for the nutritional management of ICU patients. Despite this, little is known about these changes in patients requiring prolonged organ support and nutritional therapy. The overall aim of this study is to describe changes in metabolism over time in a large prospective cohort of patients requiring \>10 days of ICU care. Our hypothesis is that there is a significant change in mean energy expenditure and respiratory quotient (RQ) between the early (day 1-3), intermediate (day 4-10) and late (\>10 days) phase in ICU.
Study Details
Timeline
Interventions
Measurement of metabolic rate (kcal/day) by respiratory gas analysis.