P025: Correlation between nuchal translucency and ductus venosus flow at 13-14 weeks scan

Fetal ductus venosus flow at 13–14 weeks' gestation is on of the best tests to identify fetuses with cardiac abnormality. Enlarged fetal nuchal translucency/NT/ is a well established ultrasonographic marker for aneuploidy screening. Our aim is to assess the incidence of reverse flow during atrial contraction at ductus venosus in fetuses with normal NT and correlation with cardial abnormalities. At 13–14 weeks' gestation were obtained ductus venosus Doppler flow velocity, during measurement of NT in 344 fetuses. The incidence of reverse flow was 13.5% of fetuses with increased NT/3 mm/ and 4.8% with normal NT. Among the fetuses NT was increased in/13/ 4.1%. There was no cardiac malformation observed in fetuses with normal NT, and cardial abnormality was found with increased NT. Our results suggest that the reversed flow in fetuses with normal NT is not associated with cardial malformations.