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CA 125 levels in abruptio placentae.

B R Witt1, R Miles, G C Wolf

  • 1Department of Obstetrics and Gynecology, Tulane University School of Medicine, New Orleans, Louisiana.

American Journal of Obstetrics and Gynecology
|May 1, 1991
PubMed
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Diagnosing abruptio placentae can be challenging. Maternal serum CA 125, a marker potentially from the decidua, shows promise as a diagnostic tool for this condition.

Area of Science:

  • Obstetrics and Gynecology
  • Maternal-Fetal Medicine
  • Biomarker Discovery

Background:

  • Abruptio placentae diagnosis is often difficult, necessitating improved diagnostic methods.
  • Maternal serum CA 125 is a protein originating from the decidua, showing elevated levels during placental separation.
  • Understanding CA 125's role could aid in diagnosing placental complications.

Purpose of the Study:

  • To investigate the utility of maternal serum CA 125 as a diagnostic marker for abruptio placentae.
  • To compare CA 125 levels in patients with abruptio placentae versus those with other bleeding sources and healthy controls.

Main Methods:

  • Serum CA 125 levels were measured in 27 pregnant patients (beyond 20 weeks' gestation) presenting with vaginal bleeding.
  • A control group of 17 patients with similar gestational age and labor status was included.

Related Experiment Videos

  • CA 125 levels were also assessed in seven healthy women within 6 hours postpartum.

    • Main Results:

    • Mean CA 125 levels were significantly higher in patients with abruptio placentae (105.9 U/ml) compared to those with other bleeding sources (13.7 U/ml) or controls (18.2 U/ml).
    • Postpartum CA 125 levels (194 U/ml) were higher than in patients diagnosed with abruptio placentae.
    • CA 125 demonstrated a sensitivity of 70% and specificity of 94% for abruptio placentae.

    Conclusions:

    • Elevated maternal serum CA 125 levels are associated with abruptio placentae.
    • The findings support a decidual origin for CA 125.
    • CA 125 shows potential as a valuable biomarker for the diagnosis of abruptio placentae.