Effect of maternal oxygen supplementation for parturients undergoing elective cesarean delivery by high‑flow nasal oxygen compared with room air on fetal acid-base status: a randomized clinical trial

Key Points

• To assess the impact of maternal high-flow nasal oxygen on fetal acid-base status during elective cesarean delivery.
• Randomized controlled trial comparing high-flow nasal oxygen and room air during elective cesarean delivery.
• Evaluated fetal acid-base status and oxidative stress markers in newborns.
• Included maternal oxygen supplementation during combined spinal-epidural anesthesia.
• High-flow nasal oxygen improved fetal acid-base status during elective cesarean delivery.
• No increase in oxidative stress markers noted in newborns from mothers receiving oxygen supplementation.