Types of congenital heart disease in major chromosomal anomalies
| Chromosomal anomaly | Total cases (n) | Type of congential heart disease (number of cases) |
|---|---|---|
| Trisomy 21 | 59 | Atrioventricular defect (41), ventricular septal defect (7), tetraology of Fallot (4), double outlet right ventricle (3), transposition of great arteries (1), dysplasia of tricuspid valve (1), mitral anomaly (1), tumour (1) |
| Trisomy 18 | 62 | Ventricular septal defect (27), atrioventricular defect (13), double outlet right ventricle (8), univentricular heart (3), truncus (3), ventricular septal defect + pulmonary stenosis (3), tetralogy of Fallot (1), transposition of great arteries (2), hypoplastic left ventricle (2) |
| Trisomy 13 | 18 | Truncus (4), double outlet right ventricle (4), pulmonary atresia + ventricular septal defect (3), tetralogy of Fallot (2), atrioventricular defect (2), univentricular heart (1), hypoplastic left ventricle (1), ventricular septal defect (1) |
| Turner syndrome | 6 | Hypoplastic left ventricle (1), tetralogy of Fallot (1), aortic coarctation (3), aortic stenosis (1) |
| Trisomy 22 | 1 | Tricuspid atresia + pulmonary atresia |
| Triploidy | 2 | Ventricular septal defect (2) |
| Klinefelter syndrome | 1 | Aortic coarctation |