Details of echocardiograms performed by both neonatologist and cardiologist
| Paired scans | Single scan | |
|---|---|---|
| Values are expressed as number, or median (interquartile range). | ||
| *p<0.05, **p<0.001 compared with infants having a single scan. | ||
| PDA, Persistent ductus arteriosus. | ||
| Number of infants scanned | 38 | 44 |
| Total number of scans | 109 | 48 |
| Neonatologist | 53 | 24 |
| Cardiologist | 56 | 24 |
| Scans/infant | 2 (2–3)** | 1 (1–1) |
| Birth weight (g) | 1770 (1018–3232) | 1568 (1051–2958) |
| Gestation (weeks) | 34 (27–39) | 32 (27–38) |
| Age at first scan (days) | 2 (1–12) | 3 (1–29) |
| Clinical indication | ||
| Asymptomatic murmur | 13 | 16 |
| Cardiorespiratory symptoms (with murmur) | 7 | 5 |
| Cardiorespiratory symptoms (without murmur) | 9 | 10 |
| Antenatal diagnosis of cardiac defect | 5 | 5 |
| Family history of cardiac defect | 4 | 8 |
| Non-cardiac congenital malformation | 0 | 0 |
| Echocardiographic findings | ||
| Normal structure | 3* | 22 |
| Congenital structural abnormality | 20* | 10 |
| Haemodynamically significant PDA | 11* | 3 |
| Persistent pulmonary hypertension of the newborn | 3 | 6 |
| Left ventricular dysfunction | 1 | 3 |