Table 1.
Baseline characteristics of the infants that underwent ductal ligation via posterolateral thoracotomy or via sternotomy.
| Characteristic | Posterolateral thoracotomy | Sternotomy | p-value |
|---|---|---|---|
| GA (weeks) | 26.7 (25.6–27.9) | 26.0 (24.9–26.0) | 0.80 |
| BW (gram) | 820 (640–960) | 800 (670–960) | 1.0 |
| PNA (days) | 17.5 (14–30) | 18 (15–24) | 0.62 |
| IVH > grade 1 | 0 | 0 | – |
| Baseline MABP (mmHg) | 32 (30–38) | 32 (28–33) | 0.33 |
| Baseline rcSO2 (%) | 68 (62–73) | 57 (52–65) | 0.05 |
| Baseline COx (ρ) | −0.38 (−0.52 to −0.10) | −0.01 (−0.14–0.07) | 0.003 |
| Duration of surgery (min) | 55 (33–80) | 84 (70–150) | 0.05 |
| Hemoglobin (<12 h before surgery) (mmol/l) | 7.9 (7.7–8.1) | 8.4 (7.4–8.9) | 0.41 |
| FiO2 baseline (%) | 37 (28–45) | 34 (28–38) | 0.56 |
| MAP baseline (cm H2O) | 6.8 (6.6–7.7) | 6.4 (6.1–7.7) | 0.41 |
MAP, mean airway pressure; FiO2, fractional inspired oxygen; IVH, intraventricular hemorrhage. Data are presented as median (range).