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Differences in physiological indicators between twin and singleton pregnancy.

Siyu Liu1, Huifeng Shi1,2,3, Shiyu He1

  • 1Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing, China.

International Journal of Gynaecology and Obstetrics: the Official Organ of the International Federation of Gynaecology and Obstetrics
|December 19, 2024
PubMed
Summary
This summary is machine-generated.

Twin pregnancies show distinct physiological differences compared to singleton pregnancies, particularly in 16 key indicators. Establishing specific reference intervals for twin pregnancies is crucial for accurate monitoring and care.

Keywords:
blood lipidcoagulation functionphysiological indicatorsplateletsred blood cellsingleton pregnancytwin pregnancy

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Area of Science:

  • Obstetrics and Gynecology
  • Maternal-Fetal Medicine
  • Clinical Physiology

Background:

  • Physiological differences between twin and singleton pregnancies are recognized but not fully characterized.
  • Current physiological standards for twin pregnancies often rely on singleton pregnancy data, lacking specificity.
  • There is a need for precise variation intervals for physiological indicators in twin gestations.

Purpose of the Study:

  • To compare and analyze differences in physiological indicators between twin and singleton pregnancies.
  • To identify specific physiological markers that distinguish twin from singleton pregnancies throughout gestation.

Main Methods:

  • Retrospective cohort study of 40,746 deliveries (2,426 twin, 38,320 singleton) from 2012-2021.
  • Analysis of 49 maternal physiological indicators across four gestational periods (trimesters and postpartum).
  • Statistical evaluation using Mann-Whitney test and multiple linear regressions.

Main Results:

  • Sixteen physiological indicators showed significant distinctions in twin pregnancies compared to singleton pregnancies.
  • These distinctions were observed across red blood cells, platelets, coagulation function, protein, creatinine, and blood lipids.
  • The observed differences remained consistent irrespective of maternal complications.

Conclusions:

  • Twin and singleton pregnancies represent distinct physiological states.
  • The establishment of specific reference intervals for physiological indicators in twin pregnancies is essential.
  • Further research is warranted to explore the predictive value of these indicators for adverse outcomes in twin gestations.