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Table 4 Comparisons between VCV (test), PCV, and PSV in the restrictive lung model

From: Accuracy of the estimations of respiratory mechanics using an expiratory time constant in passive and active breathing conditions: a bench study

 

ΔP

PIF

PEF

Crs

RCexp

Rinsp

Rexp

(cmH2O)

(L/min)

(L/min)

(ml/cmH2O)

(ms)

(cmH2O/L·s)

(cmH2O/L·s)

VCV

17.29 ± 0.18

27.29 ± 0.35

79.37 ± 0.54

25.91 ± 0.21

226.23 ± 13.63

8.73 ± 0.49

13.07 ± 0.12

7.0 ml/kg

PCV

13.56 ± 0.09

32.99 ± 0.86

33.27 ± 1.28

24.02 ± 0.15

450.90 ± 2.68

24.64 ± 0.70

18.77 ± 0.18

5.0 ml/kg

PCV

18.61 ± 0.17

49.33 ± 0.99

45.00 ± 3.43

24.35 ± 0.25

458.16 ± 4.86

22.62 ± 0.48

19.82 ± 0.12

7.0 ml/kg

PCV

26.80 ± 1.21

62.09 ± 2.74

54.66 ± 3.73

24.41 ± 0.16

551.27 ± 7.03

25.87 ± 0.28

22.58 ± 0.13

10.0 ml/kg

PSV

5.46 ± 0.05

49.15 ± 0.12

45.14 ± 1.11

57.59 ± 0.54

295.31 ± 2.87

6.66 ± 0.07

5.47 ± 0.06

5.0 ml/kg

PSV

11.46 ± 0.09

70.44 ± 1.20

61.74 ± 3.21

36.46 ± 0.25

304.89 ± 0.53

9.75 ± 0.07

8.36 ± 0.06

7.0 ml/kg

PSV

18.64 ± 1.18

94.54 ± 3.19

79.66 ± 4.35

31.67 ± 0.33

316.04 ± 0.64

11.82 ± 0.10

10.52 ± 0.10

10.0 ml/kg

F

25751.725

11948.118

22445.061

14010.828

3032.487

3647.883

23177.344

ANOVA p-value

 < 0.0001

 < 0.0001

 < 0.0001

 < 0.0001

 < 0.0001

 < 0.0001

 < 0.0001

  1. VTE expiratory tidal volume, N.S not significant, ΔP driving pressure, PIF peak inspiratory flow, PEF peak expiratory flow, Crs respiratory system compliance, RCexp expiratory time constant, Rinsp inspiratory airway resistance, Rexp expiratory airway resistance
  2. P values (Student t test) are for comparisons between PSV, PCV, and VCV. Data are shown as means ± standard deviation and are the results of eight measurements/case
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European Journal of Medical Research

ISSN: 2047-783X

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