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

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

Status

Completed

Phases

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT03807375

Enrollment

Registered

2019-01-16

Start date

2018-03-01

Completion date

2019-06-01

Last updated

2019-07-05

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Time to Reach 90% Endtidal Oxygen During Preoxygenation

Keywords

CPAP(Continuous Positive Airway Pressure), Standard preoxygenation

Brief summary

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

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.

Interventions

OTHERCPAP preoxygenation

During preoxygenation, the ventilator device will be placed in spontaneous mode and set as CPAP: 5 cmH2O.

Study design

Allocation

RANDOMIZED

Intervention model

PARALLEL

Primary purpose

OTHER

Masking

SINGLE (Subject)

Eligibility

Sex/Gender

ALL

Age

20 Years to 50 Years

Healthy volunteers

Inclusion criteria

* Inclusion Criteria: 1. Patients between the ages of 20 and 50 years 2. American Society of Anesthesiologists I, II or III 3. Patients with body mass index of 40 and over

Exclusion criteria

1. cardiopulmonary disease 2. patients with previous abdominal or thoracic surgery or cerebrovascular disease 3. story of intracranial hypertension or epilepsy 4. patients with a story of difficult tracheal intubation

Design outcomes

Primary

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

Countries

Turkey (Türkiye)

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026