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Table 2 Gas exchange and hemodynamics parameters

From: Respiratory compliance but not gas exchange correlates with changes in lung aeration after a recruitment maneuver: an experimental study in pigs with saline lavage lung injury

 

Pre-recruitment maneuver

Post-recruitment maneuver

P-value

fractional change (%)

PaO2 (mmHg)

71 ± 21

94 ± 28

0.017

33.0 ± 23

PaCO2 (mmHg)

81 ± 20

81 ± 19

0.575

-

PvO2 (mmHg)

45 ± 10

49 ± 10

0.093

-

QVA/QT (%)

50.2 ± 9.9

39.3 ± 8.6

0.036

-20.8 ± 16

VD/VT (%)

84 ± 2.9

83.7 ± 3.4

0.31

-

HR (min-1)

85 ± 84

77 ± 21

0.025

-11.3 ± 9

MAP (mmHg)

80 ± 15

83 ± 24

0.498

-

QT (l min-1)

3.7 ± 0.2

3.4 ± 0.2

0.018

-9.6 ± 6

VO2 (ml min-1)

138 ± 39

141 ± 35

0.889

-

DO2 (ml min-1)

401 ± 118

412 ± 101

0.575

-

EVLWI (ml kg-1)

20.6 ± 7.9

21.1 ± 9.6

0.499

-

  1. Data are reported as mean ± SD. DO2, oxygen delivery; EVLWI, extravascular lung water index; HR, heart rate; MAP, mean arterial pressure; PaCO2, arterial carbon dioxide partial pressure; PaO2, arterial partial oxygen pressure; , mixed venous partial oxygen pressure; QT, cardiac output; QVA/QT, venous admixture; VD/VT, dead space fraction; VO2, oxygen consumption.