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Table 1 Respiratory and haemodynamic data

From: Low tidal volume pressure support versus controlled ventilation in early experimental sepsis in pigs

Variables

VCV

PSV

Group effect

Baseline

3 h

6 h

Baseline

3 h

6 h

FiO2 [%]

36 ± 1

47 ± 13

56 ± 18

36 ± 1

43 ± 11

52 ± 25

n.s.

Ppeak [cm H2O]

17 ± 2

23 ± 5

26 ± 6

16 ± 2

20 ± 4

25 ± 9

n.s.

Pmean [cm H2O]

9 ± 1

13 ± 3

15 ± 5

9 ± 1

10 ± 3

13 ± 6

n.s.

PEEP [cmH2O]

7 ± 1

10 ± 4

12 ± 5

7 ± 1

5 ± 2

9 ± 5

n.s.

ΔPes [cm H2O]

0 ± 0

0 ± 2

0 ± 1

0 ± 0

0 ± 1

0 ± 1

n.s.

Ptp [cm H2O]

7 ± 2

6 ± 1

6 ± 1

6 ± 1

7 ± 1

7 ± 1

n.s.

Vt [ml kg-1]

6.8 ± 2.1

5.3 ± 2.0

5.5 ± 2.1

6.2 ± 0.5

6.5 ± 0.6

7.1 ± 1.2

n.s.

RR [min-1]

36 ± 8

45 ± 5

46 ± 5

39 ± 5

39 ± 15

37 ± 10

p = 0.04

Cdyn [ml cm H2O-1]

32 ± 11

14 ± 8

14 ± 6

33 ± 14

14 ± 4

13 ± 4

n.s.

pH

7.38 ± 0.04

7.17 ± 0.09

7.25 ± 0.08

7.34 ± 0.06

7.21 ± 0.04

7.19 ± 0.11

n.s.

AaDO2 [mmHg]

42 ± 19

174 ± 86

229 ± 138

48 ± 26

167 ± 90

214 ± 158

n.s.

etCO2 [kPa]

5.5 ± 0.4

5.5 ± 0.5

4.7 ± 0.6

5.3 ± 0.3

6.2 ± 1.1

7.8 ± 4.5

p = 0.02

HR [min-1]

106 ± 20

141 ± 27

127 ± 25

103 ± 24

132 ± 22

127 ± 25

n.s.

MAP [mmHg]

96 ± 6

68 ± 11

73 ± 13

90 ± 10

66 ± 7

72 ± 14

n.s.

MPAP [mmHg]

26 ± 6

46 ± 5

38 ± 5

26 ± 4

43 ± 7

35 ± 10

n.s.

CVP [mmHg]

14 ± 3

14 ± 3

15 ± 1

14 ± 1

13 ± 1

14 ± 2

n.s.

CO [L min-1]

4.2 ± 0.7

3.1 ± 0.6

2.6 ± 0.6

4.2 ± 1.3

3.3 ± 0.8

3.2 ± 0.7

n.s.

SVR [dyn s cm-5]

1570 ± 313

1493 ± 484

1916 ± 417

1547 ± 405

1402 ± 397

1427 ± 185

n.s.

NA [μg kg-1 min-1]

0 ± 0

0.2 ± 0.3

0.3 ± 0.3

0 ± 0

0.1 ± 0.2

0.2 ± 0.3

n.s.

  1. Data are reported as mean ± SD. Group effects over time are analyzed by two-way-ANOVA and with Holm-Sidak procedure. No intergroup differences during baseline. n.s. = non-significant.
  2. FiO2: fraction of inspired oxygen; Ppeak: peak inspiratory pressure; Pmean: mean airway pressure; PEEP: positive end-expiratory pressure, ΔPes: difference of the esophageal pressure; Ptp: transpulmonary pressure; Vt: tidal volume; RR: respiratory rate; Cdyn: dynamic lung compliance; AaDO2: alveolar-arterial oxygen difference; etCO2: endtidal carbon dioxide; HR: heart rate; MAP: mean arterial pressure; MPAP: mean pulmonary arterial pressure; CVP: central venous pressure; CO: cardiac output; SVR: systemic vascular resistance; NA: noradrenaline dosage.