The clinical value of passive leg raising plus ultrasound to predict fluid responsiveness in children after cardiac surgery

Abstract Background There are few non-invasive monitoring methods that can reliably predict fluid responsiveness (FR) in children. Here, we interrogate the value of doppler ultrasound evaluation passive leg raising (PLR)-induced changes stroke volume (SV) and cardiac output (CO) as a predictor FR children with mechanical ventilation after congenital surgery. Methods A total 40 following surgery, who required expansion (VE) were included this study. Hemodynamic parameters such heart rate (HR), mean arterial pressure (MAP), SV, central venous (CVP) monitored before PLR VE. Besides, assessed SV CO by bedside ultrasound. Patients showing > 10 % increase response to VE considered be responders (26 patients), while rest (14 patients) defined non-responders. Results Our data demonstrated ?SV-PLR ?CO- positively correlated ?SV-VE (r = 0.683, p < 0.001 r 0.374, 0.017, respectively), area under ROC curve (AUC) was 0.879 (95 CI [0.745 1.000], 0.001). The best cut-off for predicting 13 %, its sensitivity specificity 81.8 86.3 respectively. ?CVP, ?HR, ?MAP weak predictors Conclusions study changes, evaluated noninvasive combined PLR, could effectively evaluate