Reason for referral for fetal echocardiography
| Gestational age | ||
|---|---|---|
| 11–14 weeks | 15–33 weeks | |
| abns, abnormalities; CHD, congenital heart disease; NT, nuchal translucency; | ||
| Increased NT | 106 | 2 |
| Extracardiac abns | 7 | 33 |
| Suspected CHD | 0 | 12 |
| Known trisomy 18 | 0 | 7 |
| Miscellaneous | 1 | 6 |