| Completed | N/A | 60 | RoW | Desflurane, Remifentanil, Ultiva, Ultrasonographic measurement of ONSD, Mechanical ventilation, Trendelenburg position - 30 degree, Reverse Trendelenburg position - 30 degree | Chosun University Hospital | Cholecystitis, Ovarian Cyst, Ovarian Cancer, Uterine Myoma, Cervical Cancer | 09/14 | 09/14 | | |