Volume 19 Supplement 1
Volume assessment in critically ill patients: echocardiography, bioreactance and pulse contour thermodilution
© Hutchings et al.; licensee BioMed Central Ltd. 2015
Published: 16 March 2015
We performed an evaluation of three devices used for assessment of volume status in critically ill patients in our institution: transthoracic echocardiography (TTE) (CX50; Philips Ultrasound), bio reactance (NICOM; Cheetah Medical) and pulse contour-based thermodilution (PiCCO; Pulsion Medical).
Ten mechanically ventilated critically ill patients with PiCCO monitoring in situ and a good quality of images on transthoracic view were included. All study measurements were made in triplicate. A single trained cardiologist, blinded to the results from the other monitors, performed the TTE study. Differences among the three methods were assessed for significance using one-way ANOVA, Spearman's coefficient and Bland-Altman analysis. All statistical analyses were performed using Graph-pad Prism 5 and P < 0.05 was taken as significant.
Stroke volume produced by bioreactance appeared to be comparable with that measured by echocardiography but not with PiCCO. There was a good agreement between decision-making as regards fluid administration between PiCCO and echocardiography. NICOM appeared unreliable in this setting.
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