Key result
Expectant management of a mono-chorionic twin pregnancy complicated by TRAP sequence resulted in the successful preterm delivery of a healthy pump twin and an acardiac co-twin at 35 weeks of gestation.
Case Report (n=1)
This case report highlights the importance of early diagnosis and intensive monitoring in managing TRAP sequence to ensure the survival of the pump twin.
Supports expectant management in select TRAP cases; hypothesis-generating and should not yet change practice.
Twin reversed arterial perfusion sequence (TRAP), refers to a rare, unique complication of mono-chorionic twin pregnancy in which a twin with an absent or a nonfunctioning heart (acardiac twin) is perfused by its co-twin (pump twin) via placental arterial anastomoses. The acardiac twin usually has a poorly developed heart, upper body and head. The pump twin is at risk of heart failure and problems related to preterm birth. This case report presents an antenatally diagnosed mono-chorionic twin pregnancy, resulting in preterm delivery of a healthy, normal twin along with an acardiac co-twin.
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Maasoumeh Saleh (2017) conducted a case report in Twin reversed arterial perfusion (TRAP) sequence / Acardiac twin (n=1). Expectant management and primary caesarean section was evaluated on Fetal survival and delivery outcome. Expectant management of a mono-chorionic twin pregnancy complicated by TRAP sequence resulted in the successful preterm delivery of a healthy pump twin and an acardiac co-twin at 35 weeks of gestation.
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