Focus of Study is Postoperative Pulmonary Atelectacis
Conditions
Brief summary
Using a protective ventilation strategy during general anesthesia from pre-oxygenation to emergence and selecting patients without risk of a difficult airway or intubation, a lower fraction of inspiratory oxygen (FIO2) can be used during extubation. This might reduce the postoperative area of atelectasis without desaturations becoming more common.
Interventions
PROCEDURE30% oxygen
PROCEDURE100% oxygen
Sponsors
Region Västmanland
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
SINGLE (Subject)
Eligibility
Sex/Gender
ALL
Age
30 Years to 85 Years
Healthy volunteers
No
Inclusion criteria
* No sign of difficult airway or intubation * Day case surgery in total intravenous anesthesia with laryngeal mask airway without adding regional anesthesia of plexus brachialis or muscle relaxant. * Body mass index less than 35. * American Society of Anesthesiologists physical status (ASA) class I-III
Exclusion criteria
* Body mass index 35 or higher * Increased risk of aspiration * Obstructive sleep apnea syndrome * Procedures during surgery making a former easy airway a difficult airway * Need for opioids after extubation * Hypothermia
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Area of atelectasis | 30 minutes | The area of atelectasis is investigated by computed tomography of the lungs postoperatively |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Peripheral oxygen saturation (SpO2) | 3 hours | SpO2 is continuously assessed postoperatively. |
Countries
Sweden
Outcome results
None listed