Table 4.
Transpulmonary pressure end of inspiration in the volume-controlled ventilation and pressure-controlled ventilation modes for all the ventilators and simulated scenarios
| VCV mode ventilators ICU | Palv - Pmus | PCV mode | Palv - Pmus | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Patient effort | No effort* | Pmus-5cmH2O | Pmus-5cmH2O/+5cmH2O | No effort* | Pmus - 5cmH2O | Pmus-5cmH2O/+5cmH2O | ||||||
| Ventilator RR | zero | 15 | 25 | 15 | zero | 25 | 15 | 25 | ||||
| SERVO I | Maximum | 26.1 | 27 | 27.4 | 26.3 | 28 | SERVO I | 26.4 | 27.4 | 29 | 26.3 | 29 |
| Median | 26.1 | 27 | 26.3 | 26.3 | 26.7 | 26.4 | 27.4 | 26.8 | 26.3 | 26.2 | ||
| Minimum | 26.1 | 27 | 26.3 | 26.3 | 24.6 | 26.4 | 27.4 | 26.5 | 26.3 | 25.8 | ||
| ESPRIT | Maximum | 24.2 | 24.7 | 25.9 | 24.7 | 25.6 | ESPRIT | 24.1 | 25.7 | 27.5 | 27.1 | 28.2 |
| Median | 24.2 | 24.7 | 24.9 | 24.7 | 24.5 | 24.1 | 25.7 | 24.3 | 27.1 | 26 | ||
| Minimum | 24.2 | 24.7 | 24.6 | 24.7 | 23 | 24.1 | 25.7 | 24.3 | 27.1 | 25.4 | ||
| DX 3012 | Maximum | 25.2 | 25.5 | 26.8 | 25 | 25.4 | DX 3012 | 26.8 | 27.4 | 29.8 | 26.4 | 28.4 |
| Median | 25.2 | 25.5 | 26.2 | 25 | 24.9 | 26.8 | 27.4 | 27 | 26.4 | 26.7 | ||
| Minimum | 25.2 | 25.5 | 25.3 | 25 | 24.1 | 26.8 | 27.4 | 26.7 | 26.4 | 26.4 | ||
| PB 840 | Maximum | 24.8 | 25 | 26 | 25 | 25.6 | PB 840 | 24.8 | 24.8 | 26 | 25 | 27.8 |
| Median | 24.8 | 25 | 24.8 | 25 | 24.6 | 24.8 | 24.8 | 24.3 | 25 | 25.7 | ||
| Minimum | 24.8 | 25 | 24.6 | 25 | 22.4 | 24.8 | 24.8 | 23.8 | 25 | 25.4 | ||
| SAVINA | Maximum | 25.3 | 27 | 27.5 | 25.6 | 28 | SAVINA | 26.5 | 26.5 | 27.6 | 25.6 | 27.4 |
| Median | 25.3 | 27 | 26 | 25.6 | 25.4 | 26.5 | 26.5 | 26.1 | 25.6 | 25.2 | ||
| Minimum | 25.3 | 27 | 25.3 | 25.6 | 25.4 | 26.5 | 26.5 | 25.5 | 25.6 | 25 | ||
| SAVINA AF | Maximum | 28.6 | 28.4 | 30.8 | 28.5 | 30.7 | - | - | - | - | - | |
| Median | 28.6 | 28.4 | 29.7 | 28.5 | 27.8 | |||||||
| Minimum | 28.6 | 28.4 | 27.8 | 28.5 | 27.4 | |||||||
Palv - Alveolar pressure at end-inspiration; Pmus - muscle pressure; VCV - volume-controlled ventilation; ICU - intensive care unit; RR - respiratory rate; PCV - pressure-controlled ventilation.
*
Absence of muscle effort: Pmus = zero. Inspiratory effort: Pmus =-5cmH2O, Expiratory effort: Pmus = +5cmH2O. The spontaneous respiratory rate of the patient was set at 20bpm.