Peri‐operative use of high‐flow nasal oxygen in obstetric patients: a systematic review
Authors' conclusion
The advantages of peri-operative high-flow nasal oxygen over conventional oxygenation methods for obstetric patients remain uncertain.
Study context
- Population
- Obstetric patients in the peri-operative period11 articles
- Comparison
- HFNO vs facemask pre-oxygenation
- Outcome
- Maternal oxygenation and clinical outcomes
Methodological detailsrisk of bias assessment, 649 abstracts screened
- Risk of bias assessment
- 649 abstracts screened
Pooled result
As reported in the abstract
Pre-oxygenation
- HFNO not superior to facemask pre-oxygenation in achieving target end-tidal oxygen concentrations
- HFNO may increase PaO2; evidence of increased apnoea time inconsistent
- Variation in pre-oxygenation strategies and primary outcomes
Safety
Maternal adverse effects and neonatal outcomes (Apgar scores, umbilical cord gases, fetal heart rate)
- No reported adverse maternal effects or differences in neonatal outcomes
Original publication
Peri‐operative use of high‐flow nasal oxygen in obstetric patients: a systematic review. Anaesthesia. Published 18 June 2025. doi:10.
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