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Table 2 Respiratory mechanics

From: Respiratory mechanics and lung stress/strain in children with acute respiratory distress syndrome

 

PEEP (cmH2O)

p value

4

12

Pathology

PEEP

V T

V T

8

10

12

8

10

12

Airway plateau pressure (cmH2O)

<0.001

<0.001

<0.001

 ARDS patients

18.6 ± 3.6

21.7 ± 4.3

23.4 ± 3.3

26.5 ± 2.7

29.2 ± 2.7

31.9 ± 2.6

   

 Control patients

13.3 ± 2.1

14.7 ± 2.7

16.0 ± 3.1

21.2 ± 2.3

22.7 ± 2.6

24.3 ± 3.3

   

Respiratory system compliance (ml/cmH2O)

<0.001

0.36

0.40

 ARDS patients

9.6 ± 4.6

9.9 ± 5.6

10.2 ± 4.4

9.0 ± 4.0

9.4 ± 4.2

9.6 ± 4.2

   

 Control patients

16.5 ± 3.4

17.9 ± 4.8

19.0 ± 6.9

16.0 ± 3.6

17.1 ± 4.3

17.6 ± 4.5

   

Lung compliance (ml/cmH2O)

<0.001

0.56

0.43

 ARDS patients

11.5 ± 6.0

11.6 ± 5.5

12.0 ± 5.5

10.2 ± 4.5

10.9 ± 5.1

11.3 ± 4.9

   

 Control patients

21.8 ± 4.6

23.8 ± 6.2

25.5 ± 8.0

22.4 ± 6.0

23.4 ± 8.3

24.2 ± 7.9

   

Chest wall compliance (ml/cmH2O)

0.49

0.60

0.63

 ARDS patients

76.3 ± 29.6

79.2 ± 35.0

74.5 ± 26.3

122.6 ± 113.0

81.4 ± 30.3

73.8 ± 52.1

   

 Control patients

99.5 ± 99.1

85.6 ± 55.8

98.2 ± 69.1

85.5 ± 61.6

90.1 ± 55.9

94.4 ± 69.1

   

End-expiratory lung volume (ml)

<0.001

<0.001

0.97

 ARDS patients

211.0 ± 116.1

216.5 ± 115.2

216.7 ± 117.7

346.2 ± 177.6

361.2 ± 185.6

374.2 ± 183.9

   

 Control patients

386.2 ± 156.6

384.7 ± 151.7

386.9 ± 156.4

619.2 ± 230.2

623.1 ± 219.9

622.1 ± 207.2

   
  1. ARDS acute respiratory distress syndrome
  2. Values are mean ± SD. Two statistical analyses are reported: a three-way analysis of variance to test the effects of the presence of the disease, the level of PEEP and the level of VT/IBW and a post hoc Bonferroni’s test analysis for the comparison between subgroups