Table 2. Ventilatory, hemodynamic, and gas exchange parameters measured within 30 min after initiation of a spontaneous breathing trial.a .
| Variable | Extubation success | Extubation failure | pb |
|---|---|---|---|
| (n = 90) | (n = 45) | ||
| SBP, mmHg | 138 ± 22 | 140 ± 16 | 0.411 |
| DBP, mmHg | 80 ± 11 | 81 ± 8.90 | 0.677 |
| HR, bpm | 89 ± 12 | 88 ± 12 | 0.838 |
| RR, breaths/min | 23 ± 8.90 | 25 ± 3.80 | 0.359 |
| Arterial blood gases, pH | 7.40 ± 0.31 | 7.40 ± 0.03 | 0.436 |
| PaCO2, mmHg | 40 ± 6.20 (5.37 ± 0.83) | 39 ± 5.47 (5.16 ± 0.73) | 0.177 |
| PaO2, mmHg | 117 ± 35 (15.60 ± 4.67) | 125 ± 31 (16.67 ± 4.13) | 0.243 |
| SaO2, % | 98 ± 1.51 | 98 ± 1.75 | 0.230 |
| PaO2/FiO2 | 346 ± 116 | 356 ± 112 | 0.507 |
SBP: systolic blood pressure; and DBP: diastolic blood pressure. aValues expressed as mean ± SD. bStudent's t-test.