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Birth weight references for triplets.

S-J Min1, B Luke, L Min

  • 1Division of Health Care Policy and Research, University of Colorado Health Sciences Center, Denver, Colo, USA.

American Journal of Obstetrics and Gynecology
|October 7, 2004
PubMed
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Growth references for triplets were formulated using ultrasound and birth weights. Well-grown triplets show similar growth potential to singletons and twins until late gestation.

Area of Science:

  • Perinatal medicine
  • Maternal-fetal medicine
  • Neonatology

Background:

  • Accurate fetal growth assessment is crucial for optimizing perinatal outcomes.
  • Existing fetal growth references primarily focus on singleton pregnancies.
  • Limited data exists on normative fetal growth patterns specific to triplet gestations.

Purpose of the Study:

  • To develop comprehensive fetal and neonatal growth references for triplet populations.
  • To establish gestational age-specific percentile curves for triplet fetal weight.
  • To compare triplet growth trajectories with those of singletons and twins.

Main Methods:

  • Historical cohort study involving 188 triplet pregnancies (gestation >= 23 weeks).
  • Serial ultrasonographic fetal weight estimates modeled as a function of gestational age.

Related Experiment Videos

  • Linear regression analysis applied to generate weight percentile curves.

    • Main Results:

    • Well-grown triplets demonstrated lower weights than singletons by 30 weeks and twins by 34 weeks.
    • Placentation type influenced growth: trichorionic placentation showed higher percentiles compared to mono/dichorionic.
    • Specific percentile increases noted by 34 weeks for trichorionic vs. dichorionic/monochorionic placentation.

    Conclusions:

    • The fundamental pattern of fetal growth in well-grown triplets mirrors singletons and twins until late gestation.
    • This suggests similar in utero growth potential across different pluralities.
    • Developed references can aid in monitoring triplet fetal development and identifying potential growth abnormalities.