Details of congenital structural abnormalities
| Abnormality | Comments |
|---|---|
| VSD, Ventricular sepatal defect; ASD, atrial sepatal defect; AVSD, atrioventricular septal defect; TGA, transposition of great arteries. | |
| Isolated ventricular septal defect (n=8) | 6 small muscular VSDs, 2 perimembranous VSDs (2 mm and 6 mm) |
| Isolated atrial septal defect (n=7) | Secundum ASDs, sizes ranging from 3.0 to 7.8 mm, one in baby with trisomy 21 |
| Pulmonary valve stenosis (n=4) | Mild (2), moderate (1), and severe (1) |
| Atrioventricular septal defect (n=3) | Complete AVSDs, one in baby with trisomy 21 |
| Hypoplastic left heart syndrome/hypoplastic aortic arch (n=3) | Hypoplastic arch with critical aortic stenosis (2), hypoplastic arch with critical aortic stenosis and VSD in baby with trisomy 18 (1) |
| Coarctation of aorta (n=1) | Coarctation of the aorta with small VSD |
| Ebstein’s anomaly (n=1) | Antenatal diagnosis confirmed postnatally |
| Transposition of the great arteries (n=1) | TGA with intact ventricular septum |
| Double inlet left ventricle with transposition of the great arteries (n=1) | Antenatal diagnosis confirmed postnatally, VSD also present |
| Complex congenital cyanotic heart defect (n=1) | Right atrial isomerism, complete AVSD, pulmonary atresia, total anomalous pulmonary venous drainage |