Effectiveness of preoxygenation by conventional face mask versus non-invasive ventilation in morbidly obese patients: measurable by the oxygen-reserve index?
Completed
- Conditions
- E66.02
- Registration Number
- DRKS00025023
- Lead Sponsor
- niversitätsklinikum Hamburg-EppendorfKlinik für Anästhesiologie
- Brief Summary
Not available
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- Complete
- Sex
- All
- Target Recruitment
- 41
Inclusion Criteria
BMI >=35
Exclusion Criteria
structural lung disease
Study & Design
- Study Type
- observational
- Study Design
- Not specified
- Primary Outcome Measures
Name Time Method This study investigates, if effectiveness of preoxygenation in morbidly obese patients performed either via facemask, or by NIV can be assessed by ORI. Parameters were: SpO2, ORI, HR, BP, arterial BGA and (if applicable) ventilation parameters<br>Measuringpoints: <br>0: baseline<br>1: after 5 min of 100% oxygen<br>2: after 20 min of room air (restoring baseline)<br>3: after 5 min of NIV with 100% oxygen<br>4: after intubation<br>5: ventilation with 100% oxygen<br>6: seconds until decreasing ORI, decreasing SpO2, ORI=0 and SpO2=92%<br>7: ventilation with standardized parameters
- Secondary Outcome Measures
Name Time Method Secondly, this study examines, if differences in the effectiveness of preoxygenation via face mask or NIV can be monitored by ORI.