Monochorionic twin pregnancy complicated by right ventricular outflow tract obstruction (RVOTO) of one fetus without proof of a twin-twin transfusion syndrome

Aim: We present a case of monochorionic diamniotic (mo-di) twin pregnancy. At 26+0 weeks of gestation one fetus developed a right ventricular outflow tract obstruction (RVOTO) with severe cardiac insufficiency without characteristics of twin-twin transfusion syndrome (TTTS). Fetal echocardiography, Doppler parameters and outcome are described. Case report: A 36-year-old gravida 3, para 2 was referred to the tertiary center of perinatal medicine for laser therapy with suspected TTTS and premature rupture of the membranes (PROM). One fetus was slightly growth restricted (7th percentile), had a normal bladder and n…