Respiratory and hemodynamic data.

Data are shown as mean values ± standard deviation. VT: tidal volume, FIo2: fraction of inspired oxygen, PEEP: positive end-expiratory pressure, PIP: peak inspiratory pressure, CRS: respiratory system compliance, Pco2: end-expiratory partial pressure of carbon dioxide, MAP: mean arterial pressure, HR: heart rate. Due to the crossover design data obtained at identical VT/ILA settings were combined resulting in the merged time points 5/3 and 6/4 for low VT and 3/5 and 4/6 for high VT ventilation.*: vs. baseline (P‡: vs. baseline (P†: vs. baseline (P††: vs. time point 1 (P‡‡: vs. time point 1 (P§: vs. time point 1 (P$: vs. time point 2 (P&: vs. time point 2 (P