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Related Experiment Videos

Preterm delivery: a risk factor for retained placenta.

R Romero1, Y C Hsu, A P Athanassiadis

  • 1Department of Obstetrics and Gynecology, Yale University School of Medicine, New Haven, CT 06510.

American Journal of Obstetrics and Gynecology
|September 1, 1990
PubMed
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Preterm delivery significantly increases the risk of retained placenta, a complication of the third stage of labor. Intraamniotic infection did not further elevate this risk in preterm births.

Area of Science:

  • Obstetrics and Gynecology
  • Maternal-Fetal Medicine

Background:

  • Retained placenta is a significant obstetric complication.
  • Understanding risk factors for retained placenta is crucial for improving maternal outcomes.

Purpose of the Study:

  • To investigate whether preterm delivery, with or without intraamniotic infection, is a risk factor for retained placenta.

Main Methods:

  • Retrospective analysis comparing the incidence of retained placenta in preterm versus term vaginal deliveries.
  • Comparison of retained placenta rates between women with intact membranes and preterm premature rupture of membranes.
  • Assessment of the association between intraamniotic infection markers and retained placenta.

Main Results:

  • Retained placenta occurred significantly more often in preterm vaginal deliveries (9.1%) than term deliveries (1.1%) (OR=9.25, p<0.00001).

Related Experiment Videos

  • No significant difference in retained placenta incidence was found between preterm labor with intact membranes and preterm premature rupture of membranes (8% vs 10.4%).
  • Intraamniotic infection markers (positive amniotic fluid culture, clinical chorioamnionitis) were not associated with increased retained placenta incidence.

    • Conclusions:

    • Preterm delivery is an independent risk factor for retained placenta.
    • Intraamniotic infection does not appear to exacerbate the risk of retained placenta in preterm deliveries.
    • Management strategies for the third stage of labor should consider the increased risk associated with preterm birth.