Twin Reversed Arterial Perfusion (TRAP) in Children

  • Twin reversed arterial perfusion (TRAP) occurs in identical twin pregnancies when one twin has an absent or non-functioning heart and receives all of its blood from the normally functioning and developing "pump twin."

    • The twins are joined by a large blood vessel between their umbilical cords.
    • The acardiac twin has no chance for survival.
    • The pump twin's heart works extra hard to pump to the acardiac (without a heart) twin, increasing the pump twin's risk of heart failure and death.
    • In addition, if both twins are in the same amniotic sac (usually), they may get entangled and twist the umbilical cord, resulting in sudden death.

    A comprehensive level of care

    TRAP is a scary and complex condition. The Advanced Fetal Care Center (AFCC) of Children’s Hospital Boston is making a significant difference in the outcomes for families facing critical challenges to the health of their fetus or newborn.

    Pushing beyond the pages of yesterday’s textbooks, we are rewriting what is possible in fetal medicine delivering hope — and healthy babies — through groundbreaking advancements and a commitment to the best in pediatric care.

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This department is currently not accepting appointment requests online. Please call us at: 617-355-6000. International +1-617-355-6000.

This department is currently not accepting appointment requests online. Please call us at: 617-355-6000. International +1-617-355-6000.

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