The effect of maternal epidural analgesia on fetal oxygen saturation

Abstract
To observe fetal arteriolar oxygen saturation during maternal epidural analgesia.An observation study of 27 epidural top-ups.Labour ward, St James's University Hospital and Leeds General Infirmary, Leeds University, UK.Seventeen fetuses in uncomplicated labour monitored with a N400 fetal pulse oximeter.A change in fetal pulse oximetry reading following epidural analgesia.There is no change in fetal oxygen saturation following an uncomplicated epidural top-up (F = 0.93; df 35 and 784).An uneventful maternal epidural has no measurable effect on fetal oxygen saturation measured with a N400 pulse oximeter.

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