Information about the children who died (n = 277)
| Patient | Year of surgery | Age at surgery | Weight at surgery (kg) | Previous surgery | PH at time of surgery | Type of VSD and additional cardiac defects | Miscellaneous | Time from surgery to death (days) | Probable cause of death |
| 1 | 1993 | 4 months 10 days | 3.3 | – | Yes | Perimembranous VSD, PFO | Gestational weight 690 g at 30 weeks | 12 | PH, NEC, sepsis |
| 2 | 1990 | 5 months 25 day | 6.3 | – | Yes | Multiple (3) muscular VSD, persistent LSVC | – | 0 | PH, immediate p/o myocardial failure |
| 3 | 1988 | 10 months 23 days | 7.0 | – | Yes | Muscular VSD with extension to the inflow tract. ASD secundum, PDA | Down's syndrome | 6 | PH, sepsis? |
| 4 | 1986 | 8 months 14 days | – | – | Yes | Perimembranous VSD, straddling situation, aberrant right subclavian artery, left carotid from brachiocephalic trunk | – | 1 | PH, iatrogenic mitral regurgitation |
| 5 | 1986 | 1 year 3 days | – | – | Yes | Perimembranous VSD with extension to the outflow tract | – | 1 | PH |
| 6 | 1980 | 3 months 1 day | – | – | Yes | Perimembranous VSD, persistent LSVC, anomalous tricuspid valve | Musculoskeletal anomalies, anal stenosis | 1 | PH, AV block III, myocardial failure |
| 7 | 1980 | 2 years 3 months 4 days | – | PAB, closure of aberrant right sub-clavian artery | Yes | Perimembranous VSD with extension to the outflow tract | Down's syndrome | 0 | PH, myocardial failure, sepsis? |
| 8 | 1976 | 2 months 28 days | – | PAB | Yes | Perimembranous VSD with extension to the outflow tract, PFO | Partial APVR diagnosed postmortem | 0 | PH, AV block III, myocardial failure |
| 9 | 1978 | 11 months | – | – | Yes | Perimembranous VSD, ASD secundum, PDA, persistent LSVC anomaly and bicuspid aortic cusps | – | 2 | PH, digitalis intoxication |
| 10 | 1977 | 6 months 26 days | 7.0 | – | Yes | Perimembranous VSD (functional single ventricle), mitral regurgitation | – | 5 | PH, AV block III, brain death |
APVR, anomalous pulmonary venous return; ASD, atrial septal defect; AV, atrioventricular; LVSC, left superior vena cava; NEC, necrotising enterocolitis; PAB, pulmonary artery banding; PDA, persistent ductus arteriosus; PFO, persistent foramen ovale; PH, pulmonary hypertension; VSD, ventricular septal defect.