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How rare is Acardiac twin?
Twin reversed arterial perfusion (TRAP) used to be known as acardiac twin pregnancy. It is a very rare type of twinning that is only seen in pregnancies with only one placenta, happening in about 1 in every 35,000 identical twin births.
Twin reversed arterial perfusion (TRAP) used to be known as acardiac twin pregnancy. It is a very rare type of twinning that is only seen in pregnancies with only one placenta, happening in about 1 in every 35,000 identical twin births.