CPAP/PSV Preoxygenation in Obese Patients

Continuous Positive Airway Pressure/Pressure Support Preoxygenation of Morbidly Obese Patients

Status

Completed

Phases

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT01780571

Enrollment

Registered

2013-01-31

Start date

2009-05-31

Completion date

2012-12-31

Last updated

2013-01-31

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

Conditions

Anaesthesia, Obesity

Keywords

Obesity, general anaesthesia, preoxygenation, atelectasis

Brief summary

The purpose of this study is to determine whether continuouse positive airway pressure (CPAP), during induction of anaesthesia in morbidly obese patients, result in higher levels of oxygen in the blood.

Interventions

PROCEDURECPAP 5 cm H2O + PSV 5 cm H2O

Patients in the intervention group received Continuous Positive Airway Pressure (5 cm H2O) and Pressure Supported Ventilation (5 cm H2O)

Study design

Allocation

RANDOMIZED

Intervention model

PARALLEL

Primary purpose

PREVENTION

Masking

SINGLE (Subject)

Eligibility

Sex/Gender

ALL

Age

18 Years to 60 Years

Healthy volunteers

Yes

Inclusion criteria

* body mass index (BMI) \> 35 kg/m2 * scheduled to undergo elective gastric bypass surgery * age ≥ 18 years * ASA Physical Status Classification II-III

Exclusion criteria

* significant cardiopulmonary disease * previous abdominal or thoracic surgery * inability to comprehend the protocol.

Design outcomes

Primary

Measure	Time frame	Description
Post intubation PaO2levels	5 minutes after intubation	PaO2 levels is measured within 5 minutes after the completion of intubation.

Countries

Sweden

Outcome results

None listed

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