Table 5 Haemodynamic variables before and at the end of SBT
P values | |||||||
|---|---|---|---|---|---|---|---|
Baseline | At the end of SBT | At the end of SBT vs. baseline | Succeeded SBT vs. failed SBT at baseline | Succeeded SBT vs. failed SBT at the end of SBT | Cases with WiPO vs. cases without WiPO at baseline | Cases with WiPO vs. cases without WiPO at the end of SBT | |
Heart rate (beats/min) | |||||||
Succeeded SBT (n = 155) | 91 ± 15 | 93 ± 16 | 0.093 | ||||
Failed SBT (n = 124) | 91 ± 15 | 101 ± 18 | 0.000 | 0.80 | <0.01 | ||
Cases with WiPO (n = 75) | 89 ± 15 | 102 ± 18 | 0.000 | ||||
Cases without WiPO (n = 49) | 93 ± 14 | 99 ± 17 | 0.011 | 0.10 | 0.37 | ||
Systolic arterial pressure (mmHg) | |||||||
Succeeded SBT (n = 155) | 134 ± 22 | 136 ± 22 | 0.214 | ||||
Failed SBT (n = 124) | 135 ± 23 | 144 ± 26 | 0.000 | 0.70 | <0.01 | ||
Cases with WiPO (n = 75) | 138 ± 23 | 152 ± 26 | 0.000 | ||||
Cases without WiPO (n = 49) | 130 ± 22 | 131 ± 22 | 0.716 | 0.06 | <0.01 | ||
Mean arterial pressure (mmHg) | |||||||
Succeeded SBT (n = 155) | 89 ± 13 | 88 ± 14 | 0.478 | ||||
ailed SBT (n = 124) | 90 ± 15 | 94 ± 18 | 0.002 | 0.87 | <0.01 | ||
Cases with WiPO (n = 75) | 92 ± 16 | 100 ± 18 | 0.000 | ||||
Cases without WiPO (n = 49) | 87 ± 15 | 87 ± 15 | 0.983 | 0.09 | <0.01 | ||
Diastolic arterial pressure (mmHg) | |||||||
Succeeded SBT (n = 155) | 67 ± 11 | 68 ± 12 | 0.764 | ||||
Failed SBT (n = 124) | 66 ± 12 | 69 ± 14 | 0.021 | 0.53 | 0.35 | ||
Cases with WiPO (n = 75) | 67 ± 12 | 72 ± 14 | 0.006 | ||||
Cases without WiPO (n = 49) | 65 ± 11 | 65 ± 12 | 0.30 | 0.01 | |||
Cardiac index (L/min/m2) | |||||||
Succeeded SBT (n = 40) | 3.4 ± 0.7 | 3.9 ± 1 | 0.000 | ||||
Failed SBT (n = 45) | 3.2 ± 0.7 | 3.6 ± 1 | 0.001 | 0.13 | 0.13 | ||
Cases with WiPO (n = 30) | 3.2 ± 0.7 | 3.8 ± 1 | 0.000 | ||||
Cases without WiPO (n = 15) | 3.1 ± 0.6 | 3.1 ± 1 | 1.000 | 0.79 | 0.02 | ||
Global end-diatolic volume (mL/m2) | |||||||
Succeeded SBT (n = 40) | 825 ± 254 | 880 ± 177 | 0.199 | ||||
Failed SBT (n = 45) | 815 ± 225 | 916 ± 287 | 0.002 | 0.88 | 0.59 | ||
Cases with WiPO (n = 30) | 849 ± 133 | 1032 ± 233 | 0.000 | ||||
Cases without WiPO (n = 15) | 632 ± 166 | 624 ± 187 | 0.718 | 0.01 | <0.01 | ||
Extravascular lung water (mL/kg) | |||||||
Succeeded SBT (n = 40) | 10 ± 5 | 11 ± 3 | 0.874 | ||||
Failed SBT (n = 45) | 11 ± 3 | 12 ± 4 | 0.020 | 0.91 | 0.09 | ||
Cases with WiPO (n = 30) | 11 ± 3 | 14 ± 4 | 0.030 | ||||
Cases without WiPO (n = 15) | 9 ± 5 | 10 ± 1 | 0.296 | 0.05 | 0.01 | ||