Fig. 2.

Cerebral hemodynamic parameters such as intracranial pressure (ICP - panel A), cerebral perfusion pressure (CPP - panel B), cerebral regional tissue oxygenation (PtiO2 panel - C) during different ventilation modalities and end-expiratory pressures. Abbreviations: pressure-controlled volume-guaranteed ventilation (PCV-VG); flow-controlled ventilation with positive end-expiratory pressures (FCV +); flow-controlled ventilation with negative end-expiratory pressures (FCV−), end-expiratory pressure (EEP, which positive in case of PCV-VG and FCV + ; and negative in case of FCV−). *: p < 0.05 vs. PCV-VG within EEP; #: p < 0.05 vs. FCV + within EEP; $: p < 0.05 vs. EEP3 within modality, §: p < 0.05 vs. EEP6 within modality