• Acta Anaesthesiol Scand · Jan 2019

    Observational Study

    Prevalence and prediction of higher estimated gastric content in parturients at full cervical dilatation: A prospective cohort study.

    • François-Pierrick Desgranges, Marine Simonin, Sophie Barnoud, Laurent Zieleskiewicz, Eloise Cercueil, Julien Erbacher, Bernard Allaouchiche, Dominique Chassard, and Lionel Bouvet.
    • Department of Anesthesia and Intensive Care, Hospices Civils de Lyon, Femme Mère Enfant Hospital, Bron, France.
    • Acta Anaesthesiol Scand. 2019 Jan 1; 63 (1): 27-33.

    BackgroundEmergent obstetrical procedures may require general anaesthesia in parturients at full cervical dilatation or immediately after vaginal birth. This study aimed to determine the prevalence and the predictive factors of higher estimated gastric content in parturients at full cervical dilatation with epidural analgesia and allowed to drink during the labour, and to assess the ability of the antral area measured in the semirecumbent position (SR-CSA) to identify higher estimated gastric content in this setting.MethodsThis prospective observational study was conducted between December 2016 and July 2017. Ultrasonographic examination of the antrum was performed at full cervical dilatation, within the hour preceding the beginning of expulsive efforts. Higher estimated gastric content was defined when solid content was observed and/or if the calculated gastric fluid volume was >1.5 mL/kg.ResultsSeventeen of 62 parturients (27%) presented higher estimated gastric content. Maximal pain intensity during the last hour of labour and time interval between the insertion of the epidural catheter and ultrasonographic examination were significantly increased in parturients with higher estimated gastric content. The threshold value of the SR-CSA to identify a higher estimated gastric content was 393 mm2 , with sensitivity = 88% and specificity = 87%.ConclusionAround a quarter of parturients with epidural analgesia and free access to clear fluids during labour presented higher estimated gastric content at full cervical dilatation. The SR-CSA may be of interest for the fast ultrasound assessment of the gastric content status in case of emergent obstetrical procedures at full cervical dilatation.© 2018 The Acta Anaesthesiologica Scandinavica Foundation. Published by John Wiley & Sons Ltd.

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