Table 3.
Ventilatory parameters and ventilation mode
| Parameter | Total (n = 50) | CMV (n = 28) | PSV (n = 16) | ACV (n = 3) | CPAP (n = 3) | pa |
|---|---|---|---|---|---|---|
| RR (breath/min) | 17.5 ± 4.5 | 16.9 ± 5.3 | 18.0 ± 3.1 | 20 ± 3.8 | 18.3 ± 4.2 | 0.399 |
| Vmin (l/min) | 9.4 ± 2.7 | 9.3 ± 3 | 9.7 ± 2 | 9.0 ± 1.8 | 9.2 ± 4.9 | 0.503 |
| Vt (ml/kg) | 8.1 ± 2.2 | 8.0 ±1.7 | 8.8 ± 3.1 | 7.1 ± 1.1 | 6.7 ± 0.8 | 0.116 |
| Ppeak (cmH2O) | 24.0 ± 11.7 | 24.4 ± 11.7 | 25.5 ± 13.2 | 20.6 ± 4.7 | 15.6 ± 6.6 | 0.108 |
| Pplateau (cmH2O) | 13.1 ± 8.7 | 14.3 ± 10.5 | 12.0 ± 5.8 | 13.0 ± 6.2 | 7.6 ± 0.5 | 0.123 |
| PEEP (cmH2O) | 2.1 ± 2.5 | 2.2 ± 2.4 | 2.0 ± 2.7 | 2.7 ± 2.5 | 1.3 ± 2.3 | 0.417 |
| SC (ml/cmH2O) | 79.3 ± 57.8 | 79.1 ± 59.3 | 79.3 ± 59.4 | 75.3 ± 77.6 | 85.4 ± 41.6 | 0.548 |
| DC (ml/cmH2O) | 32.0 ± 21.6 | 32.7 ± 24.7 | 30.4 ± 18.0 | 27.0 ± 8.9 | 39.3 ± 26.6 | 0.548 |
aMann-Whitney U test. CMV, controlled mechanical ventilation; PSV, pressure support ventilation; ACV, assisted/controlled ventilation; CPAP, continuous positive airway pressure; RR, respiratory rate; Vmin, minute volume; Vt, tidal volume; Ppeak, peak pressure; Pplateau, plateau pressure; PEEP, positive end-expiratory pressure; SC, static compliance; DC, dynamic compliance.