Table 2 Serial measurements and outcome of seven fetuses with paired measurements showing abnormal ePR and/or mPR.
| Pregnancy | Gestation (weeks) | Heart rate (bpm) | mPR (ms) | ePR (ms) | Final fetal rhythm | Outcome |
|---|---|---|---|---|---|---|
| 1 | 22.0 | 141 | 130 | 115 | CHB | Hydrops & IUD |
| 23.0 | 153* | 144 | 162 | |||
| 2 | 24.0 | 146 | 129 | 115 | 1° AVB | 1° AVB |
| 32.1 | 153 | 141 | 130 | |||
| 33.0 | 138 | 142 | 136 | |||
| 3 (Triplet 1) | 19.7 | 156 | 127 | 118 | SR | Normal ECG |
| 3 (Triplet 2) | 19.7 | 153 | 124 | 122 | SR | Normal ECG |
| 4 | 25.7 | 139 | 127 | 130 | 1° AVB | 1° AVB |
| 29.7 | 136 | 125 | 138 | |||
| 33.7 | 132 | 139 | 143 | |||
| 5 | 21.3 | 149 | 128 | 100 | SR | Normal ECG |
| 35.4 | 140 | 135 | 108 | |||
| 6 | 36.0 | 140 | 134 | 124 | SR | Normal ECG |
Values in bold are >95th centile.
*Second‐degree heart block with heart rate ranging from 45 to 159 during the observation period.
1° AVB, first degree heart block; CHB, complete heart block; IUD, intrauterine death; SR, sinus rhythm.