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Table 2 Timeline of diaphragm electrical activity (EAdi) and pressure transmission to the trachea with non-invasive neurally adjusted ventilator assist (NIV-NAVA)

From: Lung protection during non-invasive synchronized assist versus volume control in rabbits

 

Pre-ALI

Post-ALI

1 hour

2 hours

3 hours

4 hours

5 hours

6 hours

P-value (time)

EAdi peak, a.u.

22.1 (±10.6)

18.2 (±12.4)

15.6 (±4.8)

19.1 (±6.5)

18.0 (±7.3)

18.9 (±6.2)

21.1 (±9.9)

17.3 (±8.0)

NS

EAdi minimum, a.u.

5.2 (±1.7)

5.6 (±1.5)

4.5 (±1.8)

4.9 (±1.0)

4.8 (±1.2)

4.7 (±1.4)

5.6 (±3.7)

6.3 (±5.0)

NS

Relative peak EAdi, %

78.6 (±48.2)

60.3 (±35.5)

52.6 (±16.1)

63.9 (±19.7)

60.8 (±23.5)

64.5 (±23.6)

71.5 (±30.4)

61 (±35.4)

NS

Pressure transmission to trachea, %

85.8 (±59.1)

55.7 (±51.3)

69.5 (±43.1)

72.1 (±52.9)

68.9 (±42.8)

72.1 (±43.2)

66.8 (±40.8)

70.2 (±37.9)

NS

  1. Results are presented as mean (± SD). a.u., arbitrary units; ALI, acute lung injury; EAdi, diaphragm electrical activity; NS, not significant.