NDLI: Influence of ventilatory settings on indirect calorimetry in mechanically ventilated patients

Content Provider	IEEE Xplore Digital Library
Author	Cecchini, S. Schena, E. Cuttone, R. Carassiti, M. Silvestri, S.
Copyright Year	2011
Description	Author affiliation: Area of Anaesthesia, Faculty of Medicine, University Campus Bio-Medico of Rome, Via Álvaro del Portillo, 200-00128 - Rome-Italy (Cuttone, R.; Carassiti, M.) \|\| Unit of Measurements and Biomedical Instrumentation, Center for Integrated Research, Università Campus Bio-Medico di Roma, Via Álvaro del Portillo, 21-00128 - Rome-Italy (Cecchini, S.; Schena, E.; Silvestri, S.)
Abstract	With the aim to assess metabolic monitor's suitability to the use in mechanically ventilated patients, a method, based on the comparison between the measurements performed by the monitor and the ventilator, is here described. In particular, the effects of positive end-expiratory pressure and oxygen inspiratory fraction (FiO2) on the metabolic measurements in presence of bias flow are investigated. In this study a metabolic monitor is used to estimate the energy expenditure of 10 mechanically ventilated cardiosurgical patients at different positive end-expiratory pressure, FiO2 and two different modes of ventilation, with bias flow. The influence of the ventilatory settings on the parameters measured by the monitor is here quantified: a slight decrease of respiratory quotient and a slight increase of resting energy expenditure are observed with the increase of FiO2. This study shows a good agreement between the measurements of the two devices: FiO2, expiratory volume (mean difference lower than 3%), and respiratory frequency (mean difference lower than 1%). This also demonstrates the capability of the metabolic monitor to reject the effect of the bias flow.
Starting Page	1245
Ending Page	1248
File Size	867563
Page Count	4
File Format	PDF
ISBN	9781424441211
ISSN	1557170X
e-ISBN	9781457715891
e-ISBN	9781424441228
DOI	10.1109/IEMBS.2011.6090293
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-08-30
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Monitoring Ventilation Biomedical monitoring Calorimetry Mechanical variables measurement Particle measurements
Content Type	Text
Resource Type	Article
Subject	Signal Processing Biomedical Engineering Health Informatics Computer Vision and Pattern Recognition

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