The Comparison of the Methods Applied in Bariatric Surgery in Terms of Preoxygenation Time

Criteria for inclusion in the study: Planned elective bariatric surgery under general anesthesia ASA 1‐2 class Between 20‐50 years 50 patients 1. Group: Patients undergoing CPAP (Continuous Positive Airway Pressure) during preoxygenation will be included. 2. Group: Patients undergoing preoxygenation without CPAP will be included In both groups, the time from the anesthesia device to the endtidal O2 90% and the endtidal CO2 value in this order will be recorded. Heart rate, blood pressure, endtidal O2 and CO2 values will be recorded during preoxygenation and after intubation.