RESUMEN
Objective@#To monitor the hemodynamics of children with congenital heart disease after operation by using ultrosonic cardiac output monitor (USCOM) to understand the changes of cardiac function in children with congenital heart disease after operation.@*Methods@#Twenty-four children with congenital heart disease underwent operation in the pediatric intensive care unit of Shengjing Hospital Affiliated to China Medical University from January 2017 to March 2018 were selected.Cardiac index (CI), lactate (Lac) concentration, central venous oxygen saturation (ScvO2), heart rate (HR) and mean arterial pressure (MAP) were recorded at four time points after operation by USCOM.@*Results@#The CI reached the highest level of 6.5L·min-1·(m2)-1 in 4h, the lowest level of 5L·min-1·(m2)-1 in 8h, and the same level in 24h as that in 1h.ScvO2 was correlated with CI: P values of 1h, 4h, 8h and 24h were 0.003, 0.02, 0.034 and 0.03, respectively (all P<0.05), while ScvO2 was not correlated with HR, MAP and Lac (P>0.05), and could not be used to judge the cardiac function of children with early congenital heart disease after operation.@*Conclusion@#USCOM is a non-invasive method for monitoring cardiac output, which can reflect the changes of cardiac function in children with congenital heart disease after operation.