Influence of Ventilatory Settings on Indirect Calorimetry in Mechanically Ventilated Patients
The COSMED Quark RMR with the ICU option has been recently assessed to be a suitable indirect calorimeter to be coupled with a mechanical ventilator in an intensive care unit setting.
The study aimed at measuring the influence of the ventilatory settings on the parameters measured by the Quark RMR metabolic monitor. The energy expenditure of 10 mechanically ventilated cardiosurgical patients was estimated at different positive end-expiratory pressure, FiO2 and two different modes of ventilation, with bias flow.
The conclusions show that "the metabolic monitor appears not to be sensitive to the presence of bias flow on act recognition and measurement of expiratory volume; it also shows accurate measurements of FiO2. This agreement guarantees the reliability of the monitor’s measurements when it is coupled with a mechanical ventilator."
The scientific paper details are the following:
- Title: "Influence of Ventilatory Settings on Indirect Calorimetry in Mechanically Ventilated Patients"
- Authors: S. Cecchini, E. Schena, R. Cuttone, M. Carassiti, and S. Silvestri. Unit of Measurements and Biomedical Instrumentation, Center for Integrated Research, Università Campus Bio-Medico di Roma
- Published in: Medical Measurements and Applications Proceedings (MeMeA), 2011 IEEE International Workshop; May 2011
The abstract can be viewed at the following link: click here
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