Table 3.

Pre- and postoperative respiratory management of patients who underwent operation

^*p=0.011 vs. Period I; ^†p=0.041 vs. Period I; ^‡p=0.001 vs. Period I.

HFOV, high-frequency oscillatory membrane oxygenation; PIP, peak inspiratory pressure; MAP, mean airway pressure; FiO₂, fraction of inspired O₂.