Skip to main content

Table 1 Comparison of physiological parameters between nasal continuous positive airway pressure and neutrally adjusted ventilatory assist

From: Neurally adjusted ventilatory assist decreases work of breathing during non-invasive ventilation in infants with severe bronchiolitis

 

nCPAP

NAVA

p*

Ti/Ttot (%)

0.47 [0.45–0.49]

0.40 [0.37–0.45]

0.02

Respiratory rate (/min)

71 [64–84]

65 [57–80]

0.31

Mean airway pressure (cmH2O)

7.0 [6.9–7.1]

10.6 [9.4–11.9]

0.02

ΔEdi (μV)

19 [17–25]

16 [10–19]

0.03

Swing Peso (cmH2O)

14 [12–18]

8 [8–13]

0.01

Swing Pdi (cmH2O)

14 [13–15]

10 [9–10]

0.02

PTPeso/breath (cmH2O s)

4.7 [3.4–6.1]

2.1 [1.9–3.7]

0.02

PTPdi/breath (cmH2O s)

4.2 [3.9–4.4]

2.6 [2.5–2.8]

0.02

PTPeso/min (cmH2O s/min)

365 [237–429]

162 [139–226]

0.02

PTPdi/min (cmH2O s/min)

298 [256–354]

157 [151–199]

0.02

  1. Data are expressed as median [interquartile range]
  2. nCPAP nasal continuous positive airway pressure, NAVA neutrally adjusted ventilatory assist, PEEP positive end expiratory pressure, Ti inspiratory time, Ttot total time, Peso esophageal pressure, Pga gastric pressure, Edi electrical activity of the diaphragm, PTP pressure time product
  3. *Wilcoxon two-sample paired sign test