Table 3.
Changes of heart rate (HR), mean arterial pressure (MAP), cardiac index (CI), stroke volume index (SVI), horizontal (hCov) and vertical (vCoV) center of ventilation and GI over time—T0: before induction of anaesthesia; T1: 5 min after lateral positioning; T2: 90 min after lateral positioning
| PEEP | Pw | Pb | |||
|---|---|---|---|---|---|
| 0 | 5 | 10 | |||
| HR (bpm) | |||||
| T0 | 75.3 ± 15 | 72.6 ± 11.9 | 70.4 ± 9.8 | <0.01 | 0.67 |
| T1 | 75.5 ± 16.8 | 71.0 ± 11.5 | 74.8 ± 13.7 | ||
| T2 | 67.4 ± 11.3 | 64.3 ± 12.2 | 70.7 ± 9.2 | ||
| MAP (mmHg) | |||||
| T0 | 102.5 ± 17.1 | 103.1 ± 14.3 | 93.3 ± 9.3 | <0.01 | 0.06 |
| T1 | 81.6 ± 22.1 | 91.6 ± 14.9 | 84.7 ± 14.4 | ||
| T2 | 87.7 ± 14.5 | 86.8 ± 12.7 | 96.4 ± 14.7 | ||
| CI (L/min/m2) | |||||
| T0 | 3.2 ± 0.9 | 4.0 ± 1.5 | 2.9 ± 0.3 | <0.01 | 0.22 |
| T1 | 2.5 ± 0.5 | 3.0 ± 0.7 | 2.9 ± 0.6 | ||
| T2 | 2.1 ± 0.4 | 2.8 ± 0.6 | 2.9 ± 0.8 | ||
| SVI (ml/beat/m2) | |||||
| T0 | 42.5 ± 8.6 | 57.7 ± 17.4 | 42.9 ± 8.1 | <0.01 | <0.01 |
| T1 | 33.5 ± 4.4 | 43.5 ± 9.3 | 38.8 ± 6.1 | ||
| T2 | 31.9 s 3.4 | 43.3 ± 7.4 | 40.8 ± 7.7 | ||
| vCoV (%) | |||||
| T0 | 52.2 ± 6.1 | 50.4 ± 6.2 | 62.6 ± 38.6 | 0.21 | 0.25 |
| T1 | 48.2 ± 6.8 | 48.8 ± 3.4 | 53.2 ± 14.9 | ||
| T2 | 54.9 ± 21.0 | 47.5 ± 3.7 | 48.2 ± 3.7 | ||
| hCoV (%) | |||||
| T0 | 48.9 ± 13.8 | 48.1 ± 17.9 | 49.4 ± 7.9 | 0.43 | 0.37 |
| T1 | 46.1 ± 4.1 | 45.5 ± 7.9 | 51.7 ± 7.4 | ||
| T2 | 42.8 ± 5.7 | 46.6 ± 6.4 | 49.1 ± 7.5 | ||
| GI (%) | |||||
| T0 | 58.0 ± 20.6 | 63.2 ± 23.7 | 62.0 ± 26.8 | 0.39 | 0.19 |
| T1 | 60.7 ± 15.1 | 57.4 ± 9 | 48.3 ± 5.3 | ||
| T2 | 69.5 ± 23.1 | 59.0 ± 10.6 | 47.5 ± 17.1 | ||
Bold values indicate the statistically significant differences between groups
Values are expressed as mean and standard deviation
Two-factor repeated measures ANOVA. Pw—within group interactions, Pb—between groups interactions with post hoc Bonferroni correction