TABLE III.
Right Ventricular Function
| Measure | Baseline (Time 0) | Discharge (Time 1) | 30-Day Follow-Up (Time 2) | 6-Month Follow-Up (Time 3) | Repeated Measures ANOVA (P-Value) | Significant Paired t-Tests (P < 0.05) |
|---|---|---|---|---|---|---|
| RV area change (%) | 29.0 ± 8.4 | 29.9 ± 7.9 | 29.7 ± 9.2 | 29.0 ± 7.8 | 0.86 | None |
| RV dP/dt (mmHg/sec) | 569 ± 176 | 610 ± 249 | 695 ± 264 | 518 ± 395 | 0.52 | None |
| RV LS (%) | 15 ± 4 | 16 ± 3 | 15 ± 4 | 15 ± 3 | 0.30 | None |
| TV inflow peak E (cm/sec) | 75.5 ± 22.7 | 77.6 ± 22.5 | 75.6 ± 24.4 | 73.4 ± 19.3 | 0.77 | None |
| TV inflow peak A (cm/sec) | 50.4 ± 21.2 | 64.5 ± 27.9 | 51.2 ± 20.5 | 51.2 ± 22.0 | <0.01 | Time 0 versus 1 Time 1 versus 2, 3 |
| TV inflow peak E:A | 1.71 ± 0.78 | 1.37 ± 0.67 | 1.62 ± 0.66 | 1.67 ± 0.79 | 0.15 | Time 0 versus 1 |
| TDI: tricuspid E′ (cm/sec) | 9.9 ± 2.8 | 9.3 ± 2.3 | 8.9 ± 2.9 | 9.2 ± 3.5 | 0.42 | None |
| TDI: tricuspid A′ (cm/sec) | 6.5 ± 2.9 | 7.5 ± 3.1 | 7.4 ± 2.0 | 7.6 ± 2.7 | 0.15 | Time 0 versus 1 |
| TDI: tricuspid S (cm/sec) | 7.9 ± 2.1 | 8.9 ± 2.1 | 7.8 ± 1.7 | 7.9 ± 1.7 | <0.01 | Time 0 versus 1 Time 1 versus 2, 3 |
| Tricuspid E:E′ | 8.0 ± 3.1 | 9.3 ± 4.1 | 10.2 ± 6.3 | 8.6 ± 3.8 | 0.28 | None |
| TDI: septal E′ (cm/sec) | 8.7 ± 2.6 | 9.1 ± 3.0 | 8.0 ± 2.2 | 8.3 ± 2.1 | 0.02 | Time 1 versus 2, 3 |
| TDI: septal A′ (cm/sec) | 6.2 ± 2.3 | 7.3 ± 2.7 | 6.4 ± 1.9 | 6.6 ± 1.6 | <0.01 | Time 0 versus 1 Time 1 versus 2, 3 |
| TDI: septal S (cm/sec) | 6.3 ± 1.7 | 7.2 ± 2.3 | 5.8 ± 1.3 | 6.0 ± 1.0 | <0.01 | Time 0 versus 1 Time 1 versus 2, 3 |
Values are mean ± SD, P-values, or time points where differences in measures were statistically significant by paired t-test.
RV = right ventricular; RV dP/dt = rate of pressure rise in the right ventricle; RV LS = right ventricular longitudinal shortening; TDI = tissue Doppler imaging; TR = tricuspid regurgitation; TV = tricuspid valve.