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Related Experiment Videos

Amniotic fluid glucose values in normal and abnormal pregnancies.

P A Weiss, H Hofmann, R Winter

    Obstetrics and Gynecology
    |March 1, 1985
    PubMed
    Summary

    Amniotic fluid glucose levels in pregnant women vary with gestational age and maternal health conditions. Abnormal maternal glucose metabolism, such as in diabetes or fetal hyperinsulinism, significantly impacts amniotic fluid glucose concentrations.

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    Area of Science:

    • Perinatal Medicine
    • Endocrinology
    • Biochemistry

    Background:

    • Amniotic fluid (AF) glucose concentration is influenced by maternal and fetal factors.
    • Understanding AF glucose dynamics is crucial for assessing fetal well-being and maternal metabolic status.

    Purpose of the Study:

    • To investigate the relationship between maternal glucose levels, pregnancy complications, and amniotic fluid glucose concentrations.
    • To establish reference ranges for AF glucose during pregnancy and in various pathological conditions.

    Main Methods:

    • Analysis of 2295 amniotic fluid samples from women between 14-42 weeks of gestation.
    • Categorization of samples based on pregnancy normalcy, fetal malformations, hydramnios, abnormal glucose tolerance tests, and insulin-dependent diabetes.
    • Comparison of AF glucose levels across different pregnancy groups and gestational ages.

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    Main Results:

    • Mean AF glucose decreased from 46 mg% at 14-17 weeks to 16 mg% at term in normal pregnancies.
    • Fetal malformations were associated with AF glucose levels below the 10th percentile (68% of cases).
    • Abnormal maternal glucose tolerance, fetal hyperinsulinism, and insulin-dependent diabetes led to significantly elevated AF glucose levels (42-106% increase).

    Conclusions:

    • Amniotic fluid glucose levels serve as an indicator of maternal and fetal glucose metabolism.
    • Deviations in AF glucose are linked to specific pregnancy complications, including fetal malformations and maternal hyperglycemia.
    • AF glucose monitoring may offer insights into fetal health and metabolic status during pregnancy.