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Fetal growth and development

F A Van Assche1

  • 1Department of Obstetrics and Gynaecology, Universitaire Ziekenhuizen K.U.-Leuven.

Verhandelingen - Koninklijke Academie Voor Geneeskunde Van Belgie
|July 1, 1998
PubMed
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Fetal growth is primarily genetic but influenced by maternal, placental, and fetal factors. Impaired uteroplacental circulation often causes growth restriction, impacting later life.

Area of Science:

  • Obstetrics and Gynecology
  • Developmental Biology
  • Perinatal Medicine

Background:

  • Fetal growth is largely genetically determined but influenced by various factors.
  • Maternal metabolic and vascular adaptations, placental function, and fetal growth factors are crucial.
  • Intrauterine growth restriction (IUGR) and macrosomia have long-term implications for individuals.

Purpose of the Study:

  • To elucidate the multifactorial determinants of fetal growth.
  • To differentiate the causes and patterns of growth abnormalities (IUGR and macrosomia).
  • To highlight the significance of fetal growth abnormalities in later life.

Main Methods:

  • Review of physiological adaptations during pregnancy.
  • Analysis of factors influencing nutrient and oxygen transfer.

Related Experiment Videos

  • Examination of genetic and environmental influences on fetal development.

    • Main Results:

    • Maternal vascular adaptations and uteroplacental circulation (high flow, low resistance) are vital for fetal growth.
    • Insulin and insulin-like growth factors are key fetal growth promoters.
    • Decreased maternal vascular adaptation or uteroplacental circulation commonly causes asymmetrical IUGR; fetal factors cause symmetrical IUGR.
    • Macrosomia is often linked to excessive nutrient supply, as seen in maternal diabetes.

    Conclusions:

    • Fetal growth is a complex process influenced by maternal, placental, and fetal systems.
    • Disruptions in uteroplacental circulation are primary drivers of IUGR.
    • Abnormal fetal growth, including IUGR and macrosomia, has significant long-term health consequences.