Table 3.

Major defects of heart and great arteries diagnosed postnatally

Case	Nuchal translucency thickness (mm)	Major abnormality of heart and great vessels
32	1.0	Tetralogy of Fallot
33	1.5	Large ventricular septal defect
34	1.5	Total anomalous pulmonary drainage
35	1.6	Tetralogy of Fallot
36	1.7	Tetralogy of Fallot
37	1.7	Transposition of great arteries
38	1.8	Transposition of great arteries, ventricular septal defect
39	1.9	Tetralogy of Fallot
40	1.9	Transposition of great arteries
41	2.0	Transposition of great arteries, ventricular septal defect
42	2.2	Tetralogy of Fallot
43	2.2	Tetralogy of Fallot
44	2.3	Ebstein’s anomaly
45	2.3*	Transposition of great arteries
46	3.0*	Large ventricular and atrial septal defect
47	3.0*	Ventricular septal defect, double outlet right ventricle, pulmonary stenosis
48	3.5†	Tetralogy of Fallot
49	3.8†	Large ventricular septal defect
50	4.5†	Transposition of great arteries

^*Thickness greater than 95th centile for gestational age. 

^†Thickness greater than 99th centile for gestational age.