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Related Experiment Videos

Umbilical cord separation in twins.

A M Oudesluys-Murphy1, W Hop, C de Groot

  • 1Department of Paediatrics, Zuiderziekenhuis, Rotterdam, The Netherlands.

Early Human Development
|July 1, 1989
PubMed
Summary
This summary is machine-generated.

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Umbilical cord separation typically occurs earlier in firstborn twins. Twin cord separation times are correlated, but not more so for identical twins than fraternal twins.

Area of Science:

  • Neonatal physiology
  • Twin studies
  • Perinatal development

Background:

  • The umbilical cord is a vital link between mother and fetus.
  • Understanding factors influencing umbilical cord separation is important for neonatal care.
  • Twin pregnancies present unique physiological considerations.

Purpose of the Study:

  • To investigate the timing of umbilical cord separation in twin infants.
  • To determine if there is a correlation in cord separation times between co-twins.
  • To compare this correlation between monozygotic and dizygotic twins.

Main Methods:

  • A cohort study involving twin births.
  • Observation and recording of umbilical cord separation times for each twin.
  • Statistical analysis to assess correlation between twin cord separation times.

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Main Results:

  • Umbilical cord separation generally occurred earlier in the firstborn twin compared to the secondborn twin.
  • A significant correlation was found between the cord separation times of co-twins, exceeding random chance.
  • The correlation in cord separation times was similar for monozygotic (identical) and dizygotic (fraternal) twins.

Conclusions:

  • Birth order may influence umbilical cord separation timing in twins.
  • Shared intrauterine or postnatal environmental factors likely contribute to correlated cord separation times in twins.
  • Genetic factors do not appear to play a dominant role in the correlation of umbilical cord separation times between twins.