Sonographic markers for early diagnosis of fetal malformations

Table 2 Classes of fetal cardiac anomalies

Complex CHD	Moderate CHD	Simple CHD
Transposition of the great arteries	Mild or moderate AS or aortic incompetence	Small VSD
Tetralogy of Fallot, Hypoplastic right heart	Moderate PS or incompetence	Small PDA
SV, DORV, Truncus arteriosus	Noncritical Coarc	Mild PS
Total anomalous pulmonary venous connection	Large ASD	BAV without AS or aortic incompetence
AVSD, Large VSD, Large PDA Critical or sever PS, Critical or severe AS, Critical Coarc	Complex forms of VSD	Small or spontaneously closed ASD

CHD: Congenital heart disease; AS: Aortic stenosis; VSD: Ventricular septal defect; PS: Pulmonary stenosis; PDA: Patent ductus arteriosus; SV: Single ventricle; DORV: Double outlet right ventricle; ASD: Atrial septal defect; BAV: Bicuspid aortic valves; AVSD: Atrioventricular septal defect.