Table 2.
Comparison of weaning parameters and lung mechanics values between groups.
| IPPB (n = 17) | IPPB + PEEP (n = 16) | Control (n = 17) | |
|---|---|---|---|
| Weaning profiles | |||
| V t (mL) | |||
| Pre | 240.4 ± 57.2 | 221.8 ± 157.4 | 293.9 ± 168.9 |
| Post | 292.5 ± 116.3∗ | 223.9 ± 110.3 | 243.9 ± 140.4∗ |
| RR (bpm) | |||
| Pre | 25.4 ± 10.9 | 24.2 ± 11.7 | 23.6 ± 8.0 |
| Post | 22.8 ± 6.6 | 23.1 ± 9.4 | 25.2 ± 6.5 |
| MV (L) | |||
| Pre | 6.6 ± 2.8 | 4.3 ± 1.4 | 6.6 ± 3.3 |
| Post | 6.1 ± 2.8 | 4.7 ± 2.9 | 5.8 ± 3.3 |
| RSBI | |||
| Pre | 111.3 ± 49.5 | 161.8 ± 71.2 | 102.2 ± 62.4 |
| Post | 87.5 ± 25.4 | 137.4 ± 93.2 | 135.9 ± 82.2 |
| MIP (cmH2O) | |||
| Pre | 33.8 ± 13.7 | 29.9 ± 15.0 | 38.0 ± 18.3 |
| Post | 36.9 ± 9.8 | 37.0 ± 16.5∗ | 40.6 ± 17.2 |
| Lung mechanics | |||
| Lung compliance (mL/cmH2O) | |||
| Pre | 48.2 ± 22.7 | 40.9 ± 22.4 | 34.4 ± 10.6 |
| Post | 55.4 ± 37.2 | 44.8 ± 24.8 | 33.9 ± 11.3 |
| Airway resistance (cmH2O/L/s) | |||
| Pre | 7.6 ± 4.7 | 9.7 ± 5.2 | 9.7 ± 4.7 |
| Post | 7.9 ± 6.1 | 8.8 ± 3.9 | 9.3 ± 6.5 |
V t: tidal volume; RR: respiratory rate; MV: minute volume; RSBI: rapid shallow breathing index; MIP: maximal inspiratory pressure.
All values are expressed as mean ± SD. ∗Within-group comparison, pre versus post, p < 0.05.