None listed
Conditions
Brief summary
Indirect calorimetry is a device used to measure energy requirements by measuring oxygen use and carbon dioxide production. Indirect calorimetry is the recommended method of guiding energy provision in critically ill patients in key nutrition guidelines. However, indirect calorimetry is not widely available in Australia and there is minimal data describing measured energy expenditure during Intensive Care Unit (ICU) admission in a modern setting. The primary aim of this study is to describe measured energy expenditure in adult mechanically ventilated critically ill patients in a modern Australian ICU.
Interventions
Indirect calorimetry measures resting energy expenditure by quantifying inspired oxygen and expired carbon dioxide and is the recommended method of guiding energy provision in critically ill patients in key nutrition guidelines. However, indirect calorimetry is not widely available in Australia and there is minimal data describing measured energy expenditure during Intensive Care Unit (ICU) admission in a modern setting.
Study design: Retrospective single-centre observational study conducted at
Indirect calorimetry measures resting energy expenditure by quantifying inspired oxygen and expired carbon dioxide and is the recommended method of guiding energy provision in critically ill patients in key nutrition guidelines. However, indirect calorimetry is not widely available in Australia and there is minimal data describing measured energy expenditure during Intensive Care Unit (ICU) admission in a modern setting. Study design: Retrospective single-centre observational study conducted at The Alfred ICU, Melbourne, Australia. Population: Critically ill adult (=> 18 years) mechanically ventilated patients who had at least one indirect calorimetry measurement in the first 28 days of ICU admission at The Alfred between January 2010 to July 2019 will be considered for inclusion.
Sponsors
Dr Emma Ridley
Eligibility
Sex/Gender
All
Age
18 Years to No maximum
Healthy volunteers
No
Inclusion criteria
Critically ill adult (=> 18 years) mechanically ventilated patients who had at least one indirect calorimetry measurement in the first 28 days of ICU admission at The Alfred between January 2010 to July 2019 will be considered for inclusion.
Exclusion criteria
Indirect calorimetry measurements will be excluded if: • The duration of measurement was <5 minutes; • Measurements were conducted during treatment with therapeutic hypothermia or extracorporeal membrane oxygenation; • The average respiratory quotient for the measurement was <0.67 or >1.3 or; • The coefficient of variation (CV) for VO2 was >50%.
Outcome results
None listed