Table II.
Changes of respiratory mechanics and hemodynamics at different time points for the patients in both group (x ± s)
| Item | Group D (n = 60) | Group C (n = 60) | P-value |
|---|---|---|---|
| Pplat [cm H2O]: | |||
| T1 | 17.6 ±1.6 | 17.9 ±1.9 | 0.330 |
| T2 | 19.2 ±2.8 | 19.9 ±3.8 | 0.219 |
| T3 | 18.1 ±2.7 | 18.3 ±2.0 | 0.379 |
| Ppeak [cm H2O]: | |||
| T1 | 18.8 ±2.6 | 19.1 ±2.8 | 0.558 |
| T2 | 20.8 ±4.0 | 21.9 ±3.6 | 0.155 |
| T3 | 19.9 ±3.2 | 20.8 ±3.4 | 0.117 |
| SVV (%): | |||
| T1 | 11.0 ±1.8 | 11.4 ±1.6 | 0.157 |
| T2 | 8.0 ±1.6 | 7.1 ±1.7 | 0.004 |
| T3 | 9.1 ±2.1 | 9.7 ±1.9 | 0.061 |
| CI [l/min/m2]: | |||
| T1 | 3.9 ±0.4 | 4.1 ±0.5 | 0.109 |
| T2 | 3.2 ±0.6 | 3.6 ±0.5 | < 0.001 |
| T3 | 3.5 ±0.5 | 3.7 ±0.4 | 0.023 |
| CVP [mm Hg]: | |||
| T1 | 8.9 ±1.4 | 8.5 ±1.3 | 0.081 |
| T2 | 9.4 ±1.6 | 10.3 ±1.8 | 0.003 |
| T3 | 8.7 ±1.8 | 9.3 ±2.3 | 0.047 |
| MAP [mm Hg]: | |||
| T1 | 78.4 ±8.7 | 76.6 ±10.4 | 0.292 |
| T2 | 69.9 ±9.0 | 74.0 ±10.2 | 0.024 |
| T3 | 67.8.2 ±8.5 | 75.5 ±9.4 | < 0.001 |
Ppeak – inspiratory airway plateau pressure, Pplat – inspiratory airway plateau pressure, Cdyn – dynamic lung compliance, CI – cardiac index, SVV – stroke volume variation, MAP – mean arterial pressure, CVP – central venous pressure.