ARE THE HEMODYNAMIC PARAMETERS MEASURED BY USCOM RELIABLE?

Abstract

            USCOM is an ultrasound hemodynamic which is noninvasive, safe and cheap. However, the reliability of this method is questionable in comparison with the frequently used invasive PiCCO method. The objective of this study is to compare the correlation and the agreement between CI, SVRI, SVI, SVV measured by USCOM and those by PiCCO.

A cross-sectional clinical study has been conducted in 30 critically ill patients at Viet Duc hospital. The hemodynamic values of CI, SVRI, SVI, SVV have been determined simultaneously but independently by USCOM and by PiCCO. The hemodynamic parameters of two methods have been compared to identify the reliability of USCOM. The results have shown the hemodynamic parameters measured by USCOM and PiCCO have not been statistically significantly biased and had strong correlation with a good agreement (r=0.82 for CI, r=0.83 for SVRI, r=0.76 for SVI, and r=0.56 for SVV respectively). In conclusion, the hemodynamic parameters of USCOM is reliable in comparison to PiCCO.