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Plasma cortisol concentrations during Caesarean section

Y Namba, J B Smith, G S Fox

    British Journal of Anaesthesia
    |October 1, 1980
    PubMed
    Summary
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    Extradural anesthesia reduces the maternal stress response during Cesarean sections, unlike general anesthesia. Fetal cortisol levels remain unaffected by the anesthesia type used.

    Area of Science:

    • Anesthesiology
    • Endocrinology
    • Obstetrics

    Background:

    • Cesarean sections can elicit significant physiological stress responses.
    • The impact of different anesthesia types on maternal and fetal stress hormones is crucial for surgical outcomes.

    Purpose of the Study:

    • To compare the adrenocortical response to extradural versus general anesthesia during Cesarean sections.
    • To investigate the effects of anesthesia on maternal and fetal plasma cortisol levels.

    Main Methods:

    • Studied 72 patients undergoing elective or emergency Cesarean sections.
    • Measured maternal plasma cortisol at multiple time points and umbilical cord cortisol at delivery.
    • Compared extradural anesthesia with general anesthesia groups.

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    Main Results:

    • Extradural anesthesia showed no significant change in maternal cortisol levels.
    • General anesthesia significantly increased maternal cortisol levels post-incision.
    • No significant differences in fetal plasma cortisol concentrations were observed between groups.

    Conclusions:

    • Extradural anesthesia attenuates the adrenocortical response to Cesarean section surgery.
    • General anesthesia potentiates the stress response during Cesarean sections.
    • Anesthesia method does not influence fetal cortisol response.