Table 1.
Physiological variables during the two modes of mechanical ventilation, pressure-regulated pressure control (PRVC) and volumne control (VC)
| PRVC (n = 44) | VC (n = 44) | P | |
| PIP (cmH2O) | 20 (19-23) | 24 (23-27) | < 0.0001 |
| MAIP (cmH2O) | 10 (9-11) | 10 (9-11) | ns |
| PaO2 (mmHg) | 98 (93-111) | 96 (92-108) | ns |
| PaCO2 (mmHg) | 43 (40-46) | 43 (40-46) | ns |
| pH | 7.38 (7.11-7.65) | 7.38 (7.10-7.65) | ns |
| MAP (mmHg) | 76 (73-83) | 77 (74-84) | ns |
Values are means (95% confidence limits). PIP = peak inspiratory pressure; MAIP = mean airway pressure; PaO2 = partial pressure of arterial oxygen; PaCO2 = partial pressure of arterial carbon oxide; MAP = mean arterial blood pressure.