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Table 2 Noninvasive ventilation parameters

From: Neurally adjusted ventilatory assist (NAVA) allows patient-ventilator synchrony during pediatric noninvasive ventilation: a crossover physiological study

 

Initial conventional NIV period

NIV-NAVA period

Final conventional NIV period

NIV settings

NIV mode

3 CPAP, 5 PSV, 5 PCV

13 NAVA

3 CPAP, 5 PSV, 5 PCV

FiO2 (%)

35 (27-40)

30 (25-35)

33 (30-36)

Set respiratory rate (n/min)

14 (10-19)

–

14 (10-19)

PEEP (cm H2O)

6 (5-7)

6 (5-7)

6 (5-7)

Pressure support (cm H2O)

10 (7-12)

–

10 (7-12)

NAVA gain level (cm H2O/μV)

–

0.4 (0.3-0.6)

–

Measured respiratory parameters

Respiratory rate (per minute)

41 (31-64)

41 (31-61)

39 (29-63)

Mean airway pressure (cm H2O)

12.3 (8.8-14.8)

10.6 (8.1-14.2)

11.9 (9.2-14.1)

Peak EAdi (μV)

13.4 (6.8-35.1)

15.1 (10.0-27.9)

16.1 (7.2-34.4)

End-expiration EAdi (μV)

1.1 (0.3-3.3)

1.2 (0.8-2.8)

1.7 (0.3-3.3)

Mean EAdi (μV)

7.0 (2.2-16.2)

7.6 (6.2-11.4)

7.7 (2.3-16.6)

  1. All values expressed as median and interquartile values. NIV, noninvasive ventilation; CPAP, continuous positive airway pressure; PSV, pressure support ventilation, PCV, pressure control ventilation.