Characteristics of 48 fetuses with congenital atrioventricular block
| Without CHD | With CHD | Total | |
|---|---|---|---|
| Data are median (range) or number of patients. | |||
| CHD, congenital heart defect; HR, heart rate. | |||
| Number of patients | 31 | 17 | 48 |
| Gestational age at referral (weeks) | 25.3 (13–36) | 26.5 (17–38) | 26 |
| Fetal hydrops | 2 | 5 | 7 |
| Positive maternal autoantibodies | 22 | 0 | 22 |
| Ventricular HR at referral (beats/min) | 60.3 (43–100) | 66.7 (51–100) | 62.6 |
| Atrial HR at referral (beats/min) | 139.8 (119–161) | 121.8 (60–161) | 133.4 |