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Related Experiment Videos

The retained placenta.

A D Weeks1

  • 1Makerere University, Faculty of Medicine, Dept of Obstetrics and Gynaecology, Kampala, Uganda. aweeks@doctors.org.uk

African Health Sciences
|June 6, 2003
PubMed
Summary
This summary is machine-generated.

Retained placenta, a major cause of maternal death, occurs when the uterine muscle fails to contract after childbirth. Current treatments like manual removal are often inaccessible in rural areas.

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Area of Science:

  • Obstetrics and Gynecology
  • Maternal Health
  • Reproductive Medicine

Background:

  • Retained placenta is a critical obstetric complication, significantly contributing to maternal mortality and morbidity, particularly in developing regions.
  • It affects approximately 2% of deliveries, with a high case mortality rate in rural settings, underscoring the need for effective interventions.
  • Understanding the mechanism of placental expulsion, involving retro-placental myometrial contraction, is key to addressing retained placenta.

Purpose of the Study:

  • To investigate the underlying mechanisms of retained placenta, focusing on the role of retro-placental myometrial contractility.
  • To evaluate current treatment modalities for retained placenta, including manual removal of placenta (MROP) and alternative methods.
  • To explore novel strategies for improving the efficacy of oxytocin administration for placental expulsion.

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Main Methods:

  • Review of ultrasound studies to elucidate the physiology of the third stage of labor and retained placenta etiology.
  • Analysis of the effectiveness and limitations of manual removal of placenta (MROP) under anesthesia.
  • Assessment of oxytocin injection into the umbilical vein as a potential alternative treatment, considering previous trial outcomes.

Main Results:

  • Retained placenta results from the failure of retro-placental myometrium to contract, potentially due to persistent inhibitory factors like progesterone or nitric oxide.
  • Manual removal of placenta (MROP) is effective but requires anesthesia and timely intervention, posing challenges in resource-limited areas.
  • The efficacy of umbilical vein oxytocin injection remains inconclusive due to potential issues with drug delivery to the placental bed.

Conclusions:

  • The failure of retro-placental myometrial contraction is the primary cause of retained placenta.
  • Accessible and timely interventions like MROP are crucial, but their scarcity in rural areas necessitates alternative solutions.
  • Further research, including ongoing trials on optimal oxytocin dosage and improved delivery techniques, is essential to establish effective alternative treatments for retained placenta.