Table 6.
Weaning parameters, oxygenation status, and ventilator modes before SBT based on the outcome of extubation
| Characteristics |
Successful extubation |
Extubation failure |
P value |
|---|---|---|---|
| ( n = 64) | ( n = 13) | ||
| Weaning parameters |
|
|
|
| Respiratory rate <30/min |
57 (89) |
13 (100) |
0.595 |
| Minute ventilation ≦10 L/min |
51 (80) |
12 (92) |
0.442 |
| Tidal volume ≧5 ml/kg |
47 (73) |
10 (77) |
0.999 |
| RSBI <105 /min/L |
59 (92) |
12 (92) |
0.999 |
| PImax ≦20 cmH2O |
60 (94) |
13 (100) |
0.999 |
| PaO2/FIO2 |
318 ± 115 |
319 ± 100 |
0.980 |
| Ventilator settings before SBT |
|
|
|
| PSV |
61 (95) |
12 (92) |
0.592 |
| PCV |
1 (2) |
1 (8) |
|
| SIMV |
1 (2) |
0 (0) |
|
| VCV | 1 (2) | 0 (0) |
Data are presented as mean ± standard deviation or number (%).
FIO2, fraction of inspired oxygen; PaO2, partial pressure of oxygen in arterial blood; PCV pressure-controlled ventilation; PImax, maximal inspiratory pressure; PSV, pressure-support ventilation; RSBI, rapid shallow-breathing index; SBT, spontaneous-breathing trial; SIMV, synchronized intermittent mandatory ventilation; VCV, volume-controlled ventilation.