Table 4.
Ventilatory parameters according to IAH definition
| Parameter | Total | IAH | Non-IAH | p valuea |
|---|---|---|---|---|
| RR (breath/min) | 17.6 ± 4.6 | 18.7 ± 3.2 | 17.4 ± 4.7 | 0.402 |
| Vmin (l/min) | 9.4 ± 2.8 | 10.1 ± 2.0 | 9.3 ± 2.8 | 0.243 |
| Vt (ml/kg) | 8.2 ± 2.3 | 8.2 ± 3.3 | 8.2 ± 2.2 | 0.540 |
| Ppeak (cmH2O) | 24.1 ± 11.7 | 20.7 ± 10.0 | 24.5 ± 12.0 | 0.370 |
| Pplateau (cmH2O) | 13.1 ± 8.8 | 12.5 ± 8.3 | 13.2 ± 8.9 | 0.858 |
| PEEP (cmH2O) | 2.1 ± 2.5 | 3.7 ± 2.5 | 1.9 ± 2.4 | 0.080 |
| SC (ml/cmH2O) | 79.4 ± 73.7 | 110.4 ± 84.6 | 75.1 ± 53.1 | 0.325 |
| DC (ml/cmH2O) | 32 ± 21.6 | 41.3 ± 24.4 | 30.7 ± 21.2 | 0.282 |
aMann-Whitney U test. IAH, intra-abdominal hypertension; 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.