- Comparison of quantitative parameters according to conditions.
Parameters | T1 | T2 | T3 | T4 | T5 | P-values* |
---|---|---|---|---|---|---|
MP (J/min) | 6.57±1.3 | 7.17±1.25 | 7.77±1.36 | 7.64±1.51 | 7.1±1.48 | <0.001 |
6.57 (3.81-11.39) | 7.1 (4.38-11.05) | 7.52 (4.56-11.11) | 7.49 (4.58-15.52) | 6.91 (3.69-13.03) | ||
P peak (cmH2O) | 17.06±3.81 | 19.25±3.83 | 20.94±4.12 | 20.25±3.47 | 18.04±3.9 | <0.001 |
17 (11-30) | 19 (12-31) | 20 (12-31) | 20 (12-29) | 18 (9-27) | ||
P plateau (cmH2O) | 16.66±3.78 | 18.79±3.8 | 20.38±3.96 | 19.69±3.35 | 17.63±4.36 | <0.001 |
17 (10-30) | 18 (12-30) | 20 (11-30) | 20 (11-28) | 17 (8-32) | ||
DP (cmH2O) | 11.77±3.81 | 13.94±3.86 | 15.52±3.93 | 14.76±3.32 | 12.56±4.05 | <0.001 |
12 (5-27) | 13 (8-27) | 15 (6-25) | 15 (6-23) | 12 (3-24) | ||
C (ml/cmH2O) | 67.31±18.24 | 53.08±15.19 | 46.97±15.79 | 48.1±13.72 | 62.65±24.16 | <0.001 |
65 (22-113) | 51 (23-94) | 45 (22-136) | 45 (28-96) | 58 (25-150) | ||
TV (ml) | 499±18.08 | 497±23.06 | 501±24.55 | 502±49.8 | 509±44.9 | 0.66 |
497 (451-587) | 496 (375-572) | 499 (431-571) | 498 (441-683) | 500 (407-682) |
Values are presented as mean ± standard deviation and median (minimum-maximum).
↵* Friedman test.
P: pressure, MP: mechanical power, TV: tidal volume, DP: driving pressure, C: compliance, T1: 15th minute in the supine position, T2: 15th minute into the first prone position, T3: at the first hour in the prone position, T4: at the conclusion of the surgery in the final prone position, T5: in the final supine position, 15 minutes after return