Use of the Tei Index in the Conservative Management of TRAP Sequence Pregnancies Diagnosed during the Periviable Period: A Case Series

Abstract EN

Twin Reverse Arterial Perfusion (TRAP) Sequence is a rare complication of monochorionic pregnancies.

Without intervention, the viable pump twin in a case of TRAP Sequence may develop high output cardiac failure leading to an intrauterine fetal demise.

We present 3 cases of TRAP Sequence pregnancy diagnosed during the second or third trimesters of pregnancy.

There are minimal sonographic tools for the guidance of a fetal therapeutic interventional procedure during the second trimester or timing of delivery during the third trimester to reduce morbidity and mortality of a viable fetus.

Tei index may be a useful sonographic tool in the management of TRAP Sequence during the second or third trimester of pregnancy.