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Related Experiment Videos

Interpregnancy interval as a risk factor for placenta accreta.

J R Wax1, A Seiler, S Horowitz

  • 1University of Connecticut School of Medicine, USA.

Connecticut Medicine
|December 28, 2000
PubMed
Summary

Women with abnormally adherent placentas, such as placenta accreta, had shorter cesarean-to-conception intervals. This condition is linked to increased maternal and perinatal complications.

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Area of Science:

  • Obstetrics and Gynecology
  • Maternal-Fetal Medicine

Background:

  • Abnormally adherent placentas (placenta accreta spectrum) pose significant risks during pregnancy and delivery.
  • Understanding the reproductive interval following delivery in these patients is crucial for family planning and future pregnancy management.

Purpose of the Study:

  • To compare the time to next conception after delivery or cesarean between patients with abnormally adherent placentas and those with normally implanted placentas.

Main Methods:

  • A retrospective review identified histologically confirmed cases of placenta accreta spectrum (accreta, increta, percreta) from 1992-1999.
  • Cases were matched to three controls based on maternal age, placenta previa, prior cesarean, prior curettage, and prior vaginal delivery.
  • Primary outcomes included delivery-to-conception and cesarean-to-conception intervals; secondary outcomes assessed maternal and neonatal morbidity.

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Main Results:

  • Delivery-to-conception intervals did not differ significantly between cases (37.1 months) and controls (37.9 months).
  • Cesarean-to-conception intervals were shorter for cases (35.2 months) compared to controls (48.1 months), though not statistically significant (P = .35).
  • Cases experienced higher rates of uterine curettage (54.5%), hysterectomy (81.8%), and transfusion (72.7%) (all P < .001), delivered earlier (31.7 weeks), and had smaller infants (2,158g) with lower 5-minute Apgar scores (18.2% < 7).

Conclusions:

  • While delivery-to-conception intervals are similar, cesarean-to-conception intervals may be shorter in patients with abnormally adherent placentas.
  • Placenta accreta spectrum is associated with substantial maternal and perinatal morbidity, necessitating careful management and counseling.