Status:
COMPLETED
Factors Determining Oxygen Wash in During Pre-oxygenation
Lead Sponsor:
Region Västmanland
Conditions:
Airway Complication of Anesthesia
Eligibility:
All Genders
40-79 years
Brief Summary
Earlier studies has shown a correlation between older age and longer time for the rise in the end-tidal O2 concentration during pre-oxygenation. In this study the investigators aim to analyse this cor...
Detailed Description
Before induction of general anaesthesia pre-oxygenation is a recommended procedure to enhance the time available for solving a problem with the airway or intubation during induction. This can be accom...
Eligibility Criteria
Inclusion
- Patients scheduled for general anaesthesia in American Society of Anesthesiology (ASA) physical status classification grade I-III.
- Body mass index over 18.5 and less than 30 kg/m2
- Peripheral oxygen saturation 92% or more on air.
Exclusion
- ASA IV.
- Patients with active smoking and former smokers with a history of smoking more than 6 pack-years.
- Chronic obstructive lung disease.
- Bloodgas with PaO2 ≤ 8 kilopascal (kPa) or PaCO2 ≥ 6.5 kPa.
- Continuous positive airway pressure treatment at night.
- Heart failure or angina pectoris.
- Hemoglobin value less than 100 g/L.
- Pregnancy.
- Any neuromuscular or neurologic illness reducing ventilatory capacity.
- Any endocrine disease influencing basic metabolic demand.
- Not possible to achieve a tight mask seal.
- Patient unable to follow instructions.
Key Trial Info
Start Date :
October 30 2018
Trial Type :
OBSERVATIONAL
Allocation :
ACTUAL
End Date :
September 29 2021
Estimated Enrollment :
120 Patients enrolled
Trial Details
Trial ID
NCT03395782
Start Date
October 30 2018
End Date
September 29 2021
Last Update
September 30 2021
Active Locations (1)
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1
Köping County Hospital
Köping, Västmanland County, Sweden, 73130