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- Title
Evaluation of a non-invasive multisensor accelerometer for calculating energy expenditure in ventilated intensive care patients compared to indirect calorimetry and predictive equations.
- Authors
Krüger, Janine; Kraft, Matthias; Gründling, Matthias; Friesecke, Sigrun; Gärtner, Simone; Vogt, Lena; Schüler, Nicole; Steveling, Antje; Lerch, Markus; Aghdassi, Ali; Krüger, Janine; Gründling, Matthias; Gärtner, Simone; Vogt, Lena J; Schüler, Nicole; Lerch, Markus M; Aghdassi, Ali A
- Abstract
Continuous measurement of resting energy expenditure (REE) in critically ill patients remains challenging but is required to prevent malnutrition. SenseWear Pro 3 Armband (SWA) is a research grade accelerometer for assessment of REE with the advantage of easy handling. In a prospective study we compared SWA with indirect calorimetry (IC) and predictive equations in critically ill, ventilated patients. REE was measured by SWA, IC and calculated by predictive formulas. Potential confounding factors that influence REE were also recorded. Results of SenseWear Armband and indirect calorimetry were compared using the Bland-Altman method. 34 ICU patients were investigated. SWA underestimated resting energy expenditure compared to IC with a mean bias of ΔREE = -253.6 ± 333.2 kcal, equivalent to -11.7 % (p = 0.025). This underestimation was seen in both, medical (-14.9 %) and surgical (-12.9 %) patients and the bias was greater in patients with fever (-19.0 %), tachycardia (-18.7 %) or tachypnea (-26.2 %). Differences were also noted when SWA was compared to predictive formulas. At present, SWA cannot be regarded as an alternative to indirect calorimetry. Individual measurements are often inaccurate and should be used with caution until improved algorithms, based on the results of this study, have been implemented.
- Subjects
CALORIC expenditure; PREVENTION of malnutrition; MALNUTRITION treatment; ACCELEROMETERS; INDIRECT calorimetry; ALGORITHMS; ANTHROPOMETRY; CALORIMETRY; CATASTROPHIC illness; CRITICAL care medicine; ENERGY metabolism; LONGITUDINAL method; PATIENT monitoring; RELAXATION for health; RESEARCH evaluation; MECHANICAL ventilators; BODY mass index; ACCELEROMETRY
- Publication
Journal of Clinical Monitoring & Computing, 2017, Vol 31, Issue 5, p1009
- ISSN
1387-1307
- Publication type
journal article
- DOI
10.1007/s10877-016-9934-5