Demographics of included piglets
| Increase (n=16) | No change (n=7) | Decrease (n=7) | P values | |
| Age (days) | 2 (1–3.5) | 2.5 (2–4) | 3 (1.8–3) | 0.57 |
| Body weight (kg) | 1.9 (1.8–2) | 2 (1.9–2.2) | 2 (2–2.3) | 0.19 |
| Heart rate (bpm) | 219 (198–248) | 237 (219–248) | 228 (208–242) | 0.77 |
| Blood gas parameters before PPV | ||||
| PaO2 (mm Hg) | 23 (22–25) | 24 (18–28) | 20 (17–24) | 0.57 |
| PaCO2 (mm Hg) | 81 (64–87) | 67 (56–70) | 62 (56–92) | 0.54 |
| pH | 6.81 (6.61–6.97) | 6.88 (6.78–6.94) | 6.87 (6.73–6.96) | 0.93 |
| Base excess (mmol/L) | −22 (−27 to −17) | −23 (−25 to −20) | −22 (−24 to −20) | 0.91 |
| Lactate (mmol/L) | 14.1 (12.8–14.6) | 13.6 (12–14.6) | 14.2 (12.4–14.9) | 0.87 |
Data are presented as median (IQR).
PPV, positive pressure ventilation.