Evaluation of Intracranial Pressure During Mechanical Ventilation Recruitment Maneuver

In patients with ARDS, 30 cm H2O positive pressure support and 30 seconds recruitment maneuver will be applied. The effect of the recruitment maneuver on intracranial pressure will be investigated by measuring the optic nerve sheath diameter with the help of ultrasonography before and after the recruitment maneuver. Optic nerve diameter will be evaluated with a linear probe on the eyeball before and after the collection maneuver, taking a value of 3 mm from the eyeball.