Indirect calorimetry- A practical guide for clinicians. Presented by Dr Emma Ridley, PhD, APD, MPH
In Emma’s presentation she describes the application of indirect calorimetry in the clinical setting. She explains:
The inaccuracy of energy estimation equations in clinical practice hence the need for a more accurate way to estimate energy requirements.
The metabolic theory of indirect calorimetry. Metabolism occurs through the use of oxygen and the production of carbon dioxide, water and heat. Indirect calorimetry determines the amount of heat generated indirectly by assessing the amount and pattern of substrate use and by-product production. Energy expenditure is based on the modified Weir equation.
Types of indirect calorimetry devices
Indirect calorimetry measurement methods and how to apply them correctly
Challenges and limitations
- Technical considerations and test limitations
- Cost
- Time
- Understanding the results, interpretation, management challenges
- Education
- Getting the device!
Lessons from The Alfred Hospital
This presentation is suitable for dietitians who are interested understanding the theory of indirect calorimetry. It is also useful for dietitians who are wanting to use indirect calorimetry in their clinical practice.
Dr Emma Ridley is a Senior Research Fellow at the ANZIC-RC, Monash University where she leads the Nutrition Program, an NHMRC Emerging Leadership Level 1 Fellow and a Senior Clinical Dietitian in ICU at The Alfred Hospital. Completing her PhD in 2018, current research interests include nutrition in the post-ICU hospitalization period, understanding the clinical application of indirect calorimetry and the effect of optimal nutrition delivery on short and long-term outcomes in ICU patients. In 2019 Emma was named as a Finalist in the ‘Clinical Research’ category of the Premier’s Awards for Health and Medical Research for the work and outcomes within her PhD. Emma regularly delivers invited national and international presentations, is an Editor with Australian Critical Care and has authored 34 peer-reviewed publications, (including in the New England Journal of Medicine). Emma has been a named investigator on $6.3 million dollars of research funding with the teams she collaborates with and is the CIA on the INTENT trial that is investigating a whole hospital nutrition intervention in critically ill patients (NCT03292237).
To register for the presentation and associated documents including the assessment quiz click here