Published: 2017-06-24

MCMA acardiac twin: a trap?

Vinayachandran S., Vedhapriya Sudhakar


Acardiac twining or Twin Reverse Arterial Perfusion (TRAP) is a rare complication of monozygotic twin occurring due to retrograde perfusion of acardiac twin by structurally normal pump twin through abnormal arterio-arterial anastomosis in the placenta. Here we report a case of unexpected occurrence of acardiac twin diagnosed as monozygotic monoamniotic twin (MCMA) gestation with single foetal demise due to multiple anomalies, delivered vaginally suggesting a role for expectant management.


Acardiac twin, MCMA twin, TRAP sequence

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