Table 2.
Respiratory status prior to the US scan
| NIPPV group (n = 20) | NIV-NAVA group (n = 20) | p value | |
|---|---|---|---|
| Postnatal systemic steroid, n (%) | 0 (0%) | 2 (10%) | 0.11 |
| Respiratory parameters at the scan | |||
| PIP median (IQR) | 16 (15.3–18) | 15.5 (13–18) | 0.41 |
| PEEP median (IQR) | 8 (7–10) | 9 (7–10) | 0.15 |
| MAP median (IQR) | 10.5 (10–12) | 12 (8.8–15.3) | 0.23 |
| FiO2 median (IQR) | 28.5 (22.3–33.8) | 27 (23–35.5) | 0.82 |
| NAVA level median (IQR) | NA | 1.7 (1.2–2) | NA |
| Edi peak median (IQR) | NA | 5.3 (4.2–7.7) | NA |
| Edi min median (IQR) | NA | 2.5 (1.03–3.9) | NA |
| RR (breath/min) median (IQR) | 37 (28.8–50) | 45 (38.3–57.5) | 0.13 |
| pH median (IQR) | 7.35 (7.25–7.43) | 7.25 (7.23–7.33) | 0.26 |
| pCO2 median (IQR) | 58 (40.3–67.5) | 53 (50–67.5) | 0.71 |
| RSS (resp severity score) median (IQR) | 2.7 (2.2–4.2) | 3.3 (2.1–5.6) | 0.49 |
| Duration of NIV-NAVA prior to the scan (Days) median (IQR) | NA | 1 (1–2.8) | NA |
| Duration of NIPPV prior to the scan (Days) median (IQR) | 10 (5.3–11) | 9.5 (5.3–15) | 0.74 |
| Total duration of NIV before the scan (Days) median (IQR) | 12.5 (10–17) | 12 (8–26.3) | 0.86 |
Data expressed as median (IQR) or as number (%)
IQR interquartile range, NIPPV non-synchronized non-invasive positive pressive ventilation, NIV-NAVA non-invasive neurally adjusted ventilatory assist, RR respiratory rate, RSS respiratory severity score