DOI: 10.36347/sjmcr.2015.v03i03.010

Pages: 209-211

Twin Reversed Arterial Perfusion is an unusual form of twin to twin transfusion syndrome (TTTS) occurring in monochorionic twin pregnancies. There is an artery to artery or vein to vein communication between both the twins. One twin is normal and the other twin has an absent cardiac structure which is haemodynamically dependent on the normal (pump twin). Since the acardiac twin has no well-developed organs above the umbilicus survival is difficult. The prognosis is bad for the pump twin with mortality ranging from 50-70%. Antenatal diagnosis with ultrasonography and Doppler verification of reversed flow in the umbilical cord of acardiac foetus confirms the diagnosis. Early intervention during the antenatal period by radiofrequency ablation of major blood vessel of acardiac foetus can save the pump twin from high output failure. We report a case of acardiac, acephalic twin with hydramnios because of its rarity.