T0

T1

p

PaO2 (mmHg) 200± 80 220 ± 85 0.311
PaCO2 (mmHg) 34.1 ± 3.6 34.5 ± 4.1 0.819
PcvO2 (mmHg) ScvO2 (%) 30.1 ± 4.8 53 ± 8 31.5 ± 5.0 58 ± 9  0.10 0.01
PcvCO2 (mmHg) 46.8 ± 4.4 44.6 ± 5.3 0.03
CVA-CO2 tension gradient (mmHg) 12.6 ± 3.0 10.2 ± 3.7 0.01
Data expressed in mean ± standard deviation; TO = before fluid therapy; T1 = after
fluid therapy. CVA-CO2 tension = central venous-arterial carbon dioxide tension.
Table 2: Arterial and central venous oxygen and carbon dioxide tension at T0.