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Related Experiment Videos

[Preoperative fasting in labour].

Jan-Philipp Breuer1, Ingrid Correns, Claudia Spies

  • 1Klinik für Anästhesiologie und operative Intensivmedizin, Charité--Universitätsmedizin Berlin, Germany. philipp.breuer@charite.de

Anasthesiologie, Intensivmedizin, Notfallmedizin, Schmerztherapie : AINS
|March 17, 2007
PubMed
Summary

Fasting before labor is a long-standing practice, but recent evidence suggests reduced fasting times may improve maternal comfort and metabolism without increasing aspiration risks during obstetric anesthesia.

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Area of Science:

  • Obstetrics and Gynecology
  • Anesthesiology
  • Pulmonary Medicine

Context:

  • Historically, strict fasting before delivery was mandated to prevent aspiration pneumonitis during labor.
  • Maternal mortality from anesthesia, especially aspiration, has significantly decreased due to improved care and technological advancements.
  • Pregnancy-related physiological changes theoretically increase aspiration risk, but current data challenge this assumption for clear fluids.

Purpose:

  • To critically evaluate the scientific basis for prolonged fasting in obstetric anesthesia.
  • To examine the impact of reduced fasting times on maternal and fetal outcomes.
  • To inform discussions on updating official recommendations for pre-delivery fasting protocols.

Summary:

  • Despite historical doctrine, strict prolonged fasting before labor lacks proven benefits in reducing maternal morbidity or mortality.

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  • Evidence suggests that allowing clear fluids and reducing fasting times may enhance maternal comfort and improve maternal/fetal metabolism without elevating aspiration risks.
  • Physiological changes during pregnancy do not necessarily translate to a clinically significant increased risk of aspiration with clear fluid intake.

    • Impact:

    • Challenges the established practice of strict pre-delivery fasting in obstetric anesthesia.
    • Supports a shift towards evidence-based guidelines that prioritize maternal well-being and comfort.
    • Promotes a re-evaluation of current recommendations regarding fluid and food intake during labor.