Table 2 Respiratory function parameters of the preterm infants pre- and post-surfactant administration.
From: Volumetric capnography pre- and post-surfactant during initial resuscitation of premature infants
Pre-surfactant | Post-surfactant | p value | |
|---|---|---|---|
End-tidal CO2 (mmHg) | 43.2 (29.6–51.7) | 33.1 (27.0–44.0) | 0.044 |
Expired tidal volume (ml/kg) | 9.4 (7.5–13.4) | 6.3 (4.3–10.1) | <0.001 |
Anatomical dead space (ml/kg) | 5.2 (4.1–6.4) | 4.1 (2.7–5.5) | 0.001 |
Maximal PIP (cm H2O) | 26.9 (24.7–27.9) | 26.6 (23.2–28.1) | 0.383 |
Presence of alveolar plateau (%) | 134 (74.4) | 100 (55.6) | 0.004 |
Non-normalised SIII (mmHg/ml) | 1.58 (0.76–3.09) | 2.44 (1.22–5.23) | 0.005 |
Normalised SIII for tidal volume (mmHg) | 18.89 (9.32–29.08) | 24.86 (16.04–31.18) | 0.006 |
Normalised SIII for PemeanCO2 (ml−1) | 0.08 (0.03–0.20) | 0.16 (0.06–0.43) | 0.003 |
Expiratory time (ms) | 572 (437–675) | 499 (410–591) | 0.051 |
