Assessing fluid responsiveness in patients undergoing abdominal major surgery: a comparison of the respiratory systolic variation test and other indices

Fluid responsiveness can be predicted by respiratory-induced changes in arterial blood pressure. In this study we compare the predictive performance of various haemodynamic parameters, including the respiratory systolic variation test (RSVT), pulse pressure variation (DPP) and stroke volume variation (SVV), in 18 patients undergoing abdominal major surgery.