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RV myocardial velocities (TDI echocardiography, mean ± SD).
| Parameter | PAH | Controls | P value |
|---|---|---|---|
| STDI tricuspid annulus (cm/s) | 7.4 ± 3.0 | 10.2 ± 1.8 | 0.01 |
| ETDI lateral tricuspid annulus (cm/s) | 4.7 ± 2.9 | 8.7 ± 1.8 | 0.01 |
| ATDI lateral tricuspid annulus (cm/s) | 8.7 ± 3.9 | 9.9 ± 2.2 | 0.01 |
| ETDI/ATDI ratio | 0.6 ± 0.2 | 0.9 ± 0.5 | 0.05 |
