[Bigeminal pregnancy complicated with twin-to-twin transfusion].

Twin-to-twin transfusion syndrome is one of the complications during bigeminal pregnancy usually seen between 17 and 31 weeks of gestation. The most typical symptoms of twin-to-twin transfusion are ascites, hydropericardium and generalized hydrops of donors fetus. Characteristic is also difference of body weight over 15% and hemoglobin level more than 5 g/dl between twins. The mortality rate of donors is very high approaching 50%. In this case report we found some features of twin-to-twin transfusion: time of delivery--33 weeks of gestation, mode of delivery--cesarean section, generalized hydrops of the donor. The clinical status of donors was critical--Apgar score 1-1-1. The hemoglobin level was extremely low--3.2 g/dl. The rescue treatment was not successful and donors twin died. Clinical problems of second twin was also common: polycythaemia, hypoglycaemia and hyperbilirubinaemia.