Table 2

Cardiorespiratory parameters measured in the four groups of piglets before death

Cardiorespiratory parameters

Group

p value

Control

NVI

VNI

VI

Number of animals

5

6

6

8

pH

7.41 ± 0.04

7.38 ± 0.04

7.40 ± 0.27

7.40 ± 0.10

0.12

PaO₂/FiO₂ (mm Hg)

414 ± 82

385 ± 38

279 ± 130^a

208 ± 113^b,c

<0.001

PaCO₂ (mm Hg)

37 ± 6

41 ± 3

40 ± 7

44 ± 7

0.16

Ppeak (cm H₂O)

19 ± 1

NP

28 ± 14

37 ± 14

0.05

Pplat (cm H₂O)

15 ± 3

NP

20 ± 11

27 ± 10

0.07

Crs (ml/cm H₂O)

25 ± 7

NP

20 ± 6

16 ± 6^a

<0.05

MAP (mmHg)

116 ± 11

106 ± 11

92 ± 12^a

74 ± 24^b,c

0.001

^ap < 0.05 versus control; ^bp < 0.01 versus control; ^cp < 0.05 versus NVI. Data are expressed as mean ± standard deviation. Crs, respiratory compliance; MAP, mean arterial pressure; NP, not performed; NVI, non-ventilated-inoculated piglets; PaCO₂, arterial partial pressure of carbon dioxide; PaO₂/FiO₂, arterial partial pressure of oxygen/fraction of inspired oxygen; Ppeak, maximum peak airway pressure; Pplat, end-inspiratory plateau airway pressure; VI, ventilated-inoculated piglets; VNI, ventilated-non-inoculated piglets.

Sartorius et al. Critical Care 2007 11:R14   doi:10.1186/cc5680