International seminar for experts on prenatal ultrasound diagnosis of congenital heart defects has started in Republican Clinical Hospital on the basis of Educational Center AMTEC KAZAN. The training is led by Professor, Director of Echo-cardiographic Department at Pediatric Cardio-vascular Center in Boston (USA) Mark Zilberman. Meeting of prenatal diagnostics doctors and pediatric cardiologists was held at the same site for the first time. Experts will discuss the problems of antenatal and postnatal life of children with heart defects within five days.