Key result
Expectant management of TRAP sequence pregnancies achieves pump twin survival and normal 6-month development.
Why the study?
Twin Reversed Arterial Perfusion (TRAP) sequence is a rare complication in monochorionic twin pregnancies associated with high mortality for the pump twin without intervention.
Case Report (n=2)
No
TRAP sequence can be successfully diagnosed and managed even in low-resource settings to yield good perinatal outcomes.
Prenatal ultrasound detection of TRAP in two cases reinforces diagnostic awareness in monochorionic twins; leaves open optimal pump-twin management.
Twin Reversed Arterial Perfusion (TRAP) sequence is a rare complication of twin gestation unique to monochorionic twins, reported to occur in about 1% of all monochorionic pregnancies. In this condition, an acardiac twin, with an absent or non-functioning heart, is perfused by its co-twin (referred to as the “pump” twin) via placental anastomoses. It is associated with a high mortality for the pump twin without intervention. We report two cases of TRAP sequence diagnosed prenatally by ultrasound at the Korle Bu Teaching Hospital. We describe how this rare anomaly can be diagnosed and managed successfully even in a low resource setting to yield good perinatal outcomes.
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Swarray‐Deen et al. (2022) conducted a case report in Twin Reversed Arterial Perfusion (TRAP) sequence (n=2). Expectant management and delivery was evaluated on Survival and development of the pump twin. Expectant management and timely delivery of two pregnancies complicated by TRAP sequence resulted in the survival and normal development of both pump twins at 6 months.
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