Nuchal translucency and cystic hygroma colli in screening for fetal major congenital heart defects in a series of 12 910 euploid pregnancies

Abstract

NT measurement during the first trimester is potentially useful for screening for fetal major CHD. Screening performance is consistent whether NT values are expressed as MoMs, percentiles or absolute values. The incidence of major CHD seems to be higher in cases of cystic hygroma colli.