Variable | Total population (N=77) |
SBT success (N1=49) |
SBT failure (N2=29) |
p |
---|---|---|---|---|
*Hb, g/dl | 9.5 (2.4) | 9.8 (2.2) | 8.9 (1.9) | 0.028 |
*FiO2 | 0.4 (0.1) | 0.4 (0.1) | 0.4 (0.1) | 0.958 |
*PaO2/FiO2 | 273.3 (145.3) | 280.1±95.7 | 292.4±90.1 | 0.601 |
*MIP, cm H20 | 40 (24) | 40 (22) | 40 (32) | 0.395 |
SaO2 start, % | 98 (1.5) | 98 (1.4) | 98 (1.7) | 0.675 |
SaO2 end, % | 97.7 (2) | 97.8 (2) | 97.5 (1) | 0.014 |
ScvO2 start, % | 75.6±8 | 76 ± 8.8 | 74.9 ± 6.6 | 0.573 |
ScvO2 end, % | 75.3±8.4 | 77.2 ± 7.8 | 71.9 ± 8.4 | 0.007 |
PaO2 start, mm Hg | 109.4±27.7 | 108.4±27.2 | 111.1±29 | 0.958 |
PaO2 end, mm Hg | 98±31 | 104.9±32 | 91.3±27.7 | 0.063 |
pH start | 7.43±0.04 | 7.42±0.05 | 7.43±0.04 | 0.680 |
pH end | 7.42±0.04 | 7.42±0.04 | 7.42±0.04 | 0.840 |
HCO3 start | 26.6±5.4 | 26.6±5.5 | 26.5±5.4 | 0.967 |
HCO3 end | 27.1±5.9 | 26.8±6.1 | 27.5±5.6 | 0.592 |
PaCO2 start, mm Hg | 40.9±9.5 | 41.2±10.2 | 40.5±8.5 | 0.744 |
PaCO2 end, mm Hg | 42.3±11.2 | 41.9±11.9 | 43±10.1 | 0.690 |
O2ER start | 22.7±8 | 22.3±8.8 | 23.3±6.6 | 0.611 |
O2ER end | 22.5±8 | 20.9±7.7 | 25.4±7.9 | 0.020 |
HR start, beats/min | 93.8±15.3 | 95.1±14.6 | 91.4±16.5 | 0.307 |
HR end, beats/min | 99.4±16.1 | 99.4±15.2 | 99.5±17.8 | 0.968 |
MAP start, mm Hg | 93.3±13.1 | 95.1±13.2 | 90.1±12.6 | 0.107 |
MAP end, mm Hg | 95.1±14.7 | 96.9±14.9 | 91.8±13.9 | 0.136 |
#f/Vt | 77.6±42.7 | 60±26.37 | 106.2±48.3 | <0.001 |