Table 2

Gas exchange and hemodynamics parameters

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
 -

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.

Henzler et al. Critical Care 2005 9:R471   doi:10.1186/cc3772