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

Study Overview
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Brief Summary
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The aim of the study was to evaluate the preoxygenation time by observing patients undergoing preoxygenation with CPAP (Continuous Positive Airway Pressure) and Mask Ventilation in the clinic.

Detailed Description
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Criteria for inclusion in the study: Planned elective bariatric surgery under general anesthesia ASA 1-2 class Between 20-50 years 50 patients Group: Patients undergoing CPAP (Continuous Positive Airway Pressure) during preoxygenation will be included. 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.

Official Title
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Evaluation of the Effect of CPAP and Mask Ventilation on Preoxygenation Time in Bariatric Surgery

Conditions
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Time to Reach 90% Endtidal Oxygen During Preoxygenation

Intervention / Treatment
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* Other: CPAP preoxygenation


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Inclusion Criteria: Patients between the ages of 20 and 50 years American Society of Anesthesiologists I, II or III Patients with body mass index of 40 and over Exclusion Criteria: cardiopulmonary disease patients with previous abdominal or thoracic surgery or cerebrovascular disease story of intracranial hypertension or epilepsy patients with a story of difficult tracheal intubation

Ages Eligible for Study
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Minimum Age: 20 Years
Maximum Age: 50 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Other
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Single


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Other: CPAP<br>During preoxygenation, the ventilator device will be placed in spontaneous mode and set as CPAP: 5 cmH2O. The process will continue until the end-tidal O2 concentration ≥ 90% is removed. | Other: CPAP preoxygenation<br>* During preoxygenation, the ventilator device will be placed in spontaneous mode and set as CPAP: 5 cmH2O.<br>|
| No Intervention: standard preoxygenation<br>During the preoxygenation, the ventilator device will be put in spontaneous mode and the procedure will continue until the End-tidal O2 concentration ≥90% is removed without additional pressure. | |

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Prevention of desaturation during intubation | Prevent desaturation of the apnea period during endotracheal intubation in bariatric surgery | 5 minutes | 
| prevention of side effects of hypoxia | hypoxia-induced arrhythmia hypotension tachycardia | 10 minutes | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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CPAP(Continuous Positive Airway Pressure), Standard preoxygenation