Table 4 Tissue hemoglobin oxygen saturation parameters measured at day 1
Parameter | Total group (n = 43) | Survivors (n = 28) | Nonsurvivors (n = 15) | P-value |
|---|---|---|---|---|
SpO2 (%) | 99 (98 to 100) | 99 (97 to 100) | 100 (99 to 100) | 0.18 |
StO2 (%) | 82 (75 to 88) | 82 (75 to 87) | 82 (73 to 92) | 0.86 |
SvO2 (%) | 75 (68 to 83) | 76 (70 to 84) | 73 (68 to 77) | 0.22 |
ΔSpO2 - StO2 (%) | 17 (9 to 24) | 16 (9 to 22) | 18 (7.5 to 25) | 0.96 |
ΔStO2 - SvO2 (%) | 5 (-7 to 19) | 4.5 (-3 to 18.1) | 10 (-10.3 to 20.5) | 0.61 |
ΔStO2 - SvO2/StO2 | 0.06 (-0.1 to 0.2) | 0.05 (-0.04 to 0.2) | 0.14 (-0.1 to 0.2) | 0.69 |
ΔStO2 - SvO2/SvO2 | 0.08 (-0.03 to 0.3) | 0.05 (-0.03 to 0.3) | 0.18 (0 to 0.3) | 0.50 |
Occlusion slope (%/second) | -0.31 (-0.47 to -0.24) | -0.35 (-0.54 to -0.24) | -0.3 (-0.37 to -0.25) | 0.36 |
Reperfusion slope (%/second) | 2.79 (1.75 to 4.32) | 3.98 (2.25 to 6.04) | 1.88 (1.56 to 2.76) | 0.003 |