Reversed

Twin Reversed Arterial Perfusion Sequence (TRAP) occurs in approximately 1 percent of identical twin pregnancies with an incidence of one 1 in 35,000 births.

Twin Reversed Arterial Perfusion Sequence and Bipolar Cord 2010

Twin Reversed Arterial Perfusion Sequence in monoamniotic (single, shared amniotic sac) gestations requires occlusion and division of the cord due to the risk of cord entanglement.

Twin Reversed Arterial Perfusion Sequence and Bipolar Cord 2010

In the last six years, we have evaluated more than 35 pregnancies with Twin Reversed Arterial Perfusion Sequence (TRAP) of which 20 underwent selective bipolar umbilical cord cauterization procedures.

Twin Reversed Arterial Perfusion Sequence and Bipolar Cord 2010

With Twin Reversed Arterial Perfusion Sequence (TRAP), one twin, lacking a functioning cardiac system, receives blood from the normally developing twin called the “pump twin.”

Twin Reversed Arterial Perfusion Sequence and Bipolar Cord 2010

Due to significant cardiac risk to the pump twin, all Twin Reversed Arterial Perfusion Sequence (TRAP) sequence cases need to be evaluated with fetal echocardiography.

Twin Reversed Arterial Perfusion Sequence and Bipolar Cord 2010

Twin Reversed Arterial Perfusion Sequence (TRAP) is also associated with excess amniotic fluid, which may lead to premature rupture of the fetal membranes and preterm labor.

Twin Reversed Arterial Perfusion Sequence and Bipolar Cord 2010

No. If I become pregnant again, will I be at risk for a recurrence of Twin Reversed Arterial Perfusion Sequence?

Twin Reversed Arterial Perfusion Sequence and Bipolar Cord 2010

Although the initiating events are unclear, Twin Reversed Arterial Perfusion Sequence (TRAP) sequence is thought to result from communication between the blood vessels in the two fetal circulations as well as a cardiac problem in the recipient twin.

Twin Reversed Arterial Perfusion Sequence and Bipolar Cord 2010

Twin Reversed Arterial Perfusion Sequence (TRAP) is a rare complication of identical twinning.

Twin Reversed Arterial Perfusion Sequence and Bipolar Cord 2010

In addition, we have more recently performed five radiofrequency ablation (RFA) procedures for Twin Reversed Arterial Perfusion Sequence (TRAP) sequence, with one unexpected post-operative pump twin demise, but the remaining four pregnancies are ongoing and undelivered but reported to be doing well.

Twin Reversed Arterial Perfusion Sequence and Bipolar Cord 2010