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Growth discordance.

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Summary
This summary is machine-generated.

Managing poor growth in twin pregnancies requires careful consideration of both fetuses. For monochorionic twins, interventions may be needed to prevent demise of one twin and protect the other from complications due to shared circulation.

Keywords:
dichorionicdiscordancegrowthmonochorionicpregnancytwin

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Area of Science:

  • Maternal-Fetal Medicine
  • Perinatology
  • Twin Pregnancy Research

Background:

  • Poor fetal growth is a frequent complication in twin pregnancies, presenting unique management challenges.
  • Assessing the risk of intrauterine demise versus the potential for intact postnatal survival is crucial for delivery decisions.
  • Monochorionic twins face additional complexities due to shared circulation, where the health of one twin directly impacts the other.

Purpose of the Study:

  • To highlight the challenges in managing growth-restricted twins, particularly monochorionic gestations.
  • To emphasize the critical balance between intervention timing and the risk of adverse outcomes for both twins.
  • To discuss the potential role of invasive fetal therapy in the pre-viable period for monochorionic twins.

Main Methods:

  • Review of clinical management strategies for twin pregnancies with poor growth.
  • Analysis of risks associated with intrauterine demise in growth-restricted twins.
  • Consideration of shared placental circulation effects in monochorionic twins.

Main Results:

  • The decision for early delivery hinges on the likelihood of both twins surviving postnatally without significant morbidity.
  • In monochorionic twins, demise of a growth-restricted twin poses a severe risk of exsanguination and brain damage to the co-twin.
  • The shared circulation in monochorionic twins necessitates a unified management approach, considering the interdependence of both fetuses.

Conclusions:

  • Management of growth restriction in twin pregnancies requires a delicate balance to optimize outcomes for both fetuses.
  • In monochorionic twins, the risk of demise of one twin can precipitate severe complications for the survivor.
  • Invasive fetal therapy may be a viable option in the pre-viable period to safeguard the appropriately growing twin in complex monochorionic gestations.