Table 4.
Hemodynamic and STE parameters during inferior vena cava occlusion
| Relative change LV end-diastolic volume % | ||
|---|---|---|
| Preocclusion | 30–35 | |
| Invasive | ||
| Heart rate, bpm | 79 ± 12 | 82 ± 11 |
| End-systolic pressure, mmHg | 98 ± 9 | 82 ± 81 |
| End-diastolic pressure, mmHg | 7 ± 2 | 5 ± 2 |
| Stroke volume, mL | 18 ± 2 | 12 ± 31 |
| dP/dtmax, mmHg/sec | 3080 ± 550 | 2630 ± 5031 |
| dP/dtmax/EDV, mmHg/sec mL−1 | 81 ± 11 | 96 ± 101 |
| Tau, msec | 33 ± 6 | 36 ± 5 |
| b | 0.21 ± 0.02 | 0.19 ± 0.03 |
| c | 0.81 ± 0.23 | 0.83 ± 0.25 |
| β | 0.045 ± 0.013 | 0.048 ± 0.013 |
| 2D speckle tracking echocardiography | ||
| Apical rotation, ° | 5.8 ± 2.1 | 7.1 ± 2.91 |
| Basal rotation, ° | −2.8 ± 0.6 | −3.0 ± 0.7 |
| LV twist, ° | 8.6 ± 1.5 | 10.1 ± 2.31 |
| Apical diastolic rotation rate, °/sec | −68 ± 13 | −83 ± 121 |
| Basal diastolic rotation rate, °/sec | 35 ± 6 | 38 ± 8 |
Values are mean ± SD.
1
P < 0.05 versus Preocclusion.