Data are expressed as the mean (standard deviation) or absolute (relative) frequencies. NS: not significant. PaO2: partial pressure of oxygen in arterial blood. PaCO2: partial pressure of carbon dioxi
Figures S1 and S2. Slope calculation of pulse pressure (PP) and stroke volume index (SVI) in responders and non-responders. Red triangles and green circles represent the mean values of PP the two popu