RecruitingProcedureThe Effects of VC Versus PC Ventilation on Cerebral and Respiratory Parameters in Patients Undergoing Laparoscopic Gynecologic SurgeryThe aim of the study was to determine whether the use of different mechanical ventilation modes in patients with Trendelenburg position and CO2 insufflation affects respiration and cerebral oxygenation due to postoperative atelectasis, and was to determine whether there was any hemodynamic effect.