Bedside ultrasonographic antral CSA measurement is feasible in pregnant women during labour and easy to perform. The observed decrease in antral CSA during labour suggests that gastric motility is preserved under epidural anaesthesia. The procedure could be used to assess individual risk of gastric content aspiration during labour.
y Authors' affiliations 1 and 2 are current affiliations, affiliation 5 is where the work was carried out. z The members of the CAESAR working group are listed in acknowledgement section.
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