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Related Experiment Videos

The 'TRAP' sequence--life threatening consequences to the pump twin

A Goh1, H L Loke, K W Tan

  • 1Department of Paediatrics, Tan Tock Seng Hospital, Singapore.

Singapore Medical Journal
|June 1, 1994
PubMed
Summary

Twin reversed arterial perfusion (TRAP) sequence is a rare condition in identical twins. Early diagnosis and management are crucial for improving outcomes in affected pregnancies.

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Area of Science:

  • Perinatology
  • Maternal-Fetal Medicine
  • Developmental Biology

Background:

  • Acardius foetal malformation is a rare complication in monochorionic twin pregnancies.
  • The twin reversed arterial perfusion (TRAP) sequence involves abnormal blood flow between twins.

Observation:

  • This case report details a twin pregnancy with TRAP sequence.
  • The recipient twin presented as acardius acephalus.
  • The pump twin experienced prematurity, disseminated intravascular coagulation, sclerema, and right ventricular hypertrophy.

Findings:

  • The pump twin exhibited failure to thrive, spastic quadriplegia, and developmental delay at seven months.
  • Complications arose from the abnormal circulatory connection in the TRAP sequence.

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Implications:

  • Increased awareness of the TRAP sequence can improve antenatal detection rates.
  • Optimal management strategies are essential for improving outcomes in TRAP sequence pregnancies.
  • This case highlights the severe long-term consequences for the surviving twin.