Clinical and Hemodynamic Characteristics of Patients with PH of Various Causes
| Characteristic | Primary PH (n = 13) | Thromboembolic PH (n = 13) | PH of other cause (n = 4) |
|---|---|---|---|
| Mean pulmonary artery pressure (mm Hg) | 60.8 ± 19.1 | 48.6 ± 12.5 | 49.5 ± 24.8 |
| RV end-diastolic pressure (mm Hg) | 88.4 ± 30.3 | 78.9 ± 17.5 | 69.8 ± 29.5 |
| PAR (dyn × s × cm−5) | 1,302 ± 715 | 987 ± 469 | 1,002 ± 460 |
| Mean arterial blood pressure (mm Hg) | 93.8 ± 10.7 | 96.1 ± 13.7 | 94.3 ± 16.2 |
| Cardiac output (L/min) | 4.00 ± 1.80 | 4.12 ± 1.58 | 3.78 ± 1.33 |
| Heart frequency (beats/min) | 89.4 ± 12.2 | 83.1 ± 11.0 | 93.0 ± 9.8 |
| RV stroke work | 30.3 ± 12.0 | 28.2 ± 8.8 | 25.3 ± 19.2 |
| LV stroke work | 54.5 ± 28.9 | 66.6 ± 41.9 | 53.0 ± 29.8 |
| RV Tei index | 0.67 ± 0.19 | 0.77 ± 0.17 | 0.75 ± 0.22 |
| New York Heart Association class | 2.7 ± 0.5 | 2.8 ± 0.7 | 3.2 ± 0.5 |
| Walking distance within 6 min (m) | 384 ± 78 | 342 ± 145 | 242 ± 180 |
| Patients with right heart failure (n) | 8/13 | 7/13 | 2/2 |
Data are mean ± SD, with no significant differences, or number of patients.