Table 1. Baseline demographic and clinical characteristics of patients.
| Patient characteristics | n | % | Median | Range |
| Sex | ||||
| Male | 20 | 52 | ||
| Female | 18 | 48 | ||
| Median age (day) | 51 | 3-270 | ||
| <1 months | 18 | 47 | ||
| 1-6 months | 18 | 47 | ||
| >6 months | 2 | 6 | ||
| Median body weight (kg) | 3.5 | 2-10 | ||
| Median saturation (%) | 63 | 44-80 | ||
| Syndrome | ||||
| None | 33 | 87.0 | ||
| Down syndrome | 2 | 5.1 | ||
| Di George | 1 | 2.5 | ||
| Trisomy 18 | 1 | 2.5 | ||
| VACTERL | 1 | 2.5 | ||
| Diagnosis | ||||
| Tetralogy of Fallot | 27 | 71.0 | ||
| Double outlet right ventricle | 8 | 21.0 | ||
| Right atrial isomerism + complete atrioventricular septal defect + pulmonary stenosis | 2 | 5.2 | ||
| Ebstein anomaly | 1 | 2.6 | ||
| Prostaglandin E1 | 6 | 15 | ||
| Mechanic ventilation | 5 | 13 | ||
| Inotropic support | 3 | 8 | ||
| Pulmonary annulus | ||||
| Median size (mm) | 4.9 | 3.1-7 | ||
| Median Z score | -1 | +1 to -2 |