Characteristics of women who embarked upon pregnancy during study period
| Successful live births (n=8) | Miscarriages only (n=6) | Unsuccessful conception (n=5) | |
|---|---|---|---|
| Age at PCC (mean), years | 26.1 | 28.2 | 29 |
| Underlying anatomy, tricuspid atresia/other | 3/5 | 4/3 | 1/4 |
| Age (first pregnancy or first miscarriage) (mean), years | 29 | 30.1 | N/A |
| Fontan type, TCPC/AP Fontan | 6/2 | 3/3 | 4/1 |
| Age at Fontan completion (mean±SD), years | 11.2 (5.7) | 8.2 (4.2) | 6.8 (3.7) |
| Prior thromboembolism | 0 | 0 | 2 |
| CARPREG score prior to pregnancy, 0/1/≥2* | 2/6/0 | 1/3/2 | 0/2/3 |
| Prior atrial arrhythmia | 6 | 3 | 3 |
| New York Heart Association Functional Class prior to pregnancy (NYHA 1/2/3/4) | 7/1/0/0 | 5/1/0/0/ | 4/1/0/0 |
| Oxygen saturations <92% prior to pregnancy | 1 | 5 | 3 |
| Haemoglobin (g/dL) at PCC (mean±SD) at PCC | 14.7(0.7) | 16.4(1.9) | 13.1(0.8) |
| Systemic ventricle morphology (left/right) | 6/2 | 4/2 | 5/0 |
| Systemic Ventricular Function Grade: good/mildly impaired/moderately impaired/poor | 7/1/0 | 6/0/0/0 | 5/0/0/0 |
*No patient had CARPREG score >2.
CARPREG, cardiac disease in pregnancy; PCC, preconception counselling; TCPC, total cavopulmonary connection.