A greater than 1 % absolute risk for having a child with congenital heart disease or a fetal arrhythmia are Indications for referral for fetal echocardiogram according to the guidelines by the American Heart Association .
The guidelines also outline the elements of the fetal echocardiographic examination, and provide guidance on In utero management of bradycardias and tachycardias .
Donofrio MT, et. al., Diagnosis and treatment of fetal cardiac disease: a scientific statement from the American Heart Association.Circulation. 2014 May 27;129(21):2183-242. PMID: 24763516