Pre‐oxygenation using high‐flow nasal oxygen in parturients undergoing caesarean section in general anaesthesia: A prospective, multi‐centre, pilot study
Authors' conclusion
Pre- and peri-oxygenation with high-flow nasal oxygen maintain adequate oxygen saturation levels during induction of anaesthesia also in parturients.
Study context
- Population
- Pregnant women, gestational age ≥30 weeks, undergoing caesarean section under GA
- Participants
- 34 women
- Exposure
- HFNO pre- and peri-oxygenation vs facemask pre-oxygenation
- HFNOn = 25
- Facemaskn = 9reference
- Outcome
- Proportion desaturating below 93%
- Follow-up
- From start of pre-oxygenation until 1 min after tracheal intubation
Methodological detailsnon-randomised, multicentre, pilot
- Non-randomised
- Multicentre
- Pilot
Main finding
As reported in the abstract
HFNO
0
events
Facemask
0
events
- Lowest SpO2 observed in any parturient
- 97%
Observational data: associations, not effects.
Secondary outcomes
End-tidal oxygen concentration after tracheal intubation · no difference detected
P = 0.308
Safety
- No signs of regurgitation in any parturient
Original publication
Pre‐oxygenation using high‐flow nasal oxygen in parturients undergoing caesarean section in general anaesthesia: A prospective, multi‐centre, pilot study. Acta Anaesthesiol Scand. Published 10 May 2023. doi:10.
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