Clinical Characteristics and Hemodynamics at Time of Inclusion
| Characteristic | Mean ± SD (n = 26) | Range |
| Age (y) | 48 ± 18 | 26–73 |
| Mean right atrial pressure (mm Hg) | 8 ± 6 | 0–27 |
| Pulmonary capillary wedge pressure (mm Hg) | 9 ± 3 | 2–14 |
| Mean pulmonary arterial pressure (mm Hg) | 52 ± 14 | 34–91 |
| Cardiac output (L⋅min−1) | 5.1 ± 1.3 | 2.8–7.6 |
| Heart rate (bpm) | 77 ± 14 | 56–102 |
| Pulmonary vascular resistance (dyne⋅s⋅cm−5) | 704 ± 317 | 313–1,419 |
| Stroke work index (mm Hg⋅mL⋅m−2) | 1,258 ± 428 | 325–2,063 |
| RV ejection fraction (%) | 33 ± 17 | 11–66 |
| 6-min walk distance (m) | 448 ± 125 | 93–637 |
Eleven patients were in NYHA class II and 15 were in class III.