Effect of Positive End Expiratory Pressure (PEEP) on Cerebral Oxymetry During Laparoscopy

International Reveiw Board of Gachon Univerity Gil Hospital

The investigators hypothesized that positive end expiratory pressure (PEEP) would increase the regional oxygen saturation (rSO2).

The investigators hypothesized that PEEP would increase the rSO2 during laparoscopic surgery by improving oxygenation.

Inclusion Criteria:

• ASA PS I or II adult patient undergoing laparoscopic low anterior resection with Trendelenburg position

Exclusion Criteria:

• Patients with history of cerebrovascular disease, coronary occlusive disease and/or obesity (body mass index > 30) were excluded from this study.