The finding that aortopathy is common in newborns with bicuspid aortic valve suggests that the associated aortopathy represents a fetal malformation.
Among newborns in Copenhagen, the prevalence of BAV was 0.77%. Aortopathy was common in newborns with BAV, suggesting that it also represents a fetal malformation.
Sillesen et al. (Tue,) studied this question.