Demographic characteristics of the patients (n = 125)
| Female/male | 73/52 |
|---|---|
| Age (years) | 1.9 (2.1) |
| Weight (kg) | 9.0 (4.2) |
| Body surface area (m2) | 0.43 (0.15) |
| Heart failure | 109 |
| Cyanosis | 45 |
| Qp:Qs >1.5 | 66 |
| Inspired oxygen fraction | 0.27 (0.08) |
Values are given as mean (SD).
Qp:Qs, pulmonary to systemic flow ratio.