Fig. 2

Mean (±SE) values of respiratory mechanical parameters during the experimental protocol. ΔBV: changes of total blood volume. The absolute values of airway resistance (Raw), tissue damping (G) and tissue elastance (H) over the experimental protocol (left) and their changes following the last fluid replacement maneuver relative to their corresponding baseline (right). BL: baseline. CR1-CR6: replacement maneuvers. *: p < 0.05 in Group 1 vs BL, #: p < 0.05 in Group 3 vs BL, †: p < 0.05 in Group C vs BL. §: p < 0.05 in the relative changes