Table 4.
Characteristics of all cases with WiPO and of all cases without WiPO
| Cases with WiPO | Cases without WiPO | P valuea | |
|---|---|---|---|
| (n = 75) | (n = 204) | ||
| Weight gain since admission (%) | 11 ± 15 | 6 ± 16 | 0.10 |
| Fluid balance over the last 24 h (mL) | 292 (−698 to 1023) | 300 (−453 to 1115) | 1.00 |
| Mechanical ventilation duration before SBT (days) | 11 ± 7 | 11 ± 10 | 0.68 |
| Left ventricular ejection fraction at baseline (%) | 61 ± 13 | 57 ± 11 | 0.76 |
| E/E' ratio of the mitral flow at baseline | 10.5 ± 4.3 | 8.8 ± 3.2* | <0.01 |
| ScvO2 at baseline (%) | 72 ± 6 | 72 ± 8 | 0.86 |
| Duration of SBT (min) | 48 ± 17 | 56 ± 11* | <0.01 |
Values are expressed as mean ± standard deviation or median (interquartile range)
aCases with at least one WiPO vs. cases without WiPO
SBT spontaneous breathing trial, ScvO2 oxygen saturation of the central venous blood, WiPO weaning-induced pulmonary oedema