Table 4.
Intergroup differences in hemodynamics.
| Group | T0 | T1 | T2 | T3 | T4 | T5 | |
|---|---|---|---|---|---|---|---|
| MAP (mmHg) | A | 103 ± 10 | 85 ± 8 | 86 ± 9 | 82 ± 8 | 86 ± 9 | 94 ± 10 |
| B | 101 ± 10 | 84 ± 8 | 84 ± 8 | 79 ± 5 | 84 ± 7 | 97 ± 9 | |
| HR (beats.min-1) | A | 72 ± 7 | 69 ± 8 | 67 ± 7 | 67 ± 8 | 71 ± 8 | 75 ± 8 |
| B | 70 ± 7 | 66 ± 7 | 69 ± 9 | 67 ± 7 | 69 ± 7 | 75 ± 8 | |
| CO (L.min-1) | A | 5.5 ± 0.4 | 3.9 ± 0.5 | 4.5 ± 0.4 | 4.4 ± 0.4 | 4.7 ± 0.4 | 5.0 ± 0.4 |
| B | 5.4 ± 0.5 | 3.6 ± 0.6 | 4.3 ± 0.4 | 4.2 ± 0.5 | 4.6 ± 0.5 | 4.8 ± 0.5 | |
| SVV (%) | A | 10.8 ± 1.0 | 12.6 ± 1.0 | 11.0 ± 1.1 | 10.0 ± 0.9b | 9.4 ± 0.9 | 9.2 ± 1.0 |
| B | 10.5 ± 0.9 | 12.1 ± 1.4 | 10.4 ± 1.0 | 9.3 ± 0.9 | 9.0 ± 1.0 | 9.2 ± 1.1 |
Values are expressed as mean ± SD for continuous variables and two independent samples t-test is used for inter-group comparisons.
Group A is the experimental group; Group B is the control group.
Two independent samples t-test bp < 0.01, Group A vs. Group B.
MAP, Mean Arterial Pressure; HR, Heart Rate; CO, Cardiac Output; SVV, Stroke Volume Variation; T0, after entering the operating room; T1, 10-min after intubation; T2, before ARM; T3, 20-min after the application of optimal PEEP; T4, at the end of one-lung ventilation; T5, at the end of surgery.