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Distribution of various types of congenital conotruncal defects in patients with CTD.
| Congenital conotruncal defect | Number of patients | Percentage |
|---|---|---|
| Tetralogy of fallot | 52 | 38 |
| Double outlet right ventricle | 25 | 18 |
| Pulmonary atresia | 18 | 13 |
| Transposition of great arteries | 16 | 12 |
| Single ventricle | 11 | 8 |
| Interrupted aortic arch | 6 | 4 |
| Persistent truncus arteriosus | 4 | 3 |
| Hypoplastic right heart syndrome | 2 | 2 |
| Co-arctation of aorta | 2 | 2 |
| Total | 136 | 100 |
