Preoxygenation With High Flow Nasal Cannula Prolongs Normoxia Time During Induction of Anaesthesia of Bariatric Patients and is Superior to Conventional Preoxygenation With Face Mask.
Not Applicable
- Conditions
- Compare Preoxygenation Methods in Bariatric Patients
- Registration Number
- NCT04965610
- Lead Sponsor
- Staedtisches Klinikum Karlsruhe
- Brief Summary
To compare preoxygenation for induction of general anaesthesia with High Flow Nasal Cannula vs preoxygenation with face mask in patients undergoing bariatric surgery. The hypothesis is that preoxygenation with High Flow Nasal Cannula prolongs normoxia time during induction of anaeshesia and is superior to conventional preoxygenation with face mask. Primary endpoint will be the time during which spO2 \> 92 %. Secondary endpoint will be paCO2.
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- UNKNOWN
- Sex
- All
- Target Recruitment
- 100
Inclusion Criteria
- age over 18
- elective bariatric surgery
- written consent
Exclusion Criteria
- preexisting lung diseases, congenital heart diseases
- known difficult airway
- SpO2 < 92% under ambient air conditions
- known diaphragmal hernia
- clinically relevant reflux
Study & Design
- Study Type
- INTERVENTIONAL
- Study Design
- PARALLEL
- Primary Outcome Measures
Name Time Method Normoxia time SpO2 > 92% 10 Minutes after induction Time in which the SpO2 remains \> 92% while patient is apnoeic
- Secondary Outcome Measures
Name Time Method paCO2 10 Minutes after induction Increase in arterial CO2 during Apnoea