Fig. 3From: Tissue oxygen saturation as an early indicator of delayed lactate clearance after cardiac surgery: a prospective observational studyTime course of lactate clearance in subgroups with minimum StO2 of at least 75 % or of less than 75 %. For all time points, lactate clearance was calculated referring to T 0 and data are presented as mean with standard deviation. Significance was tested between groups and within groups and a p <0.05 was considered significantBack to article page