Baseline demographic characteristics of patients included
| Characteristics | |
| Mean age yrs | 59.5 (27–82) |
| Female/male | 27/20 |
| Previous PEA | 8 (17) |
| WHO Class II/III/IV | 10/32/5 |
| 6MWT m | 291±116 |
| mPAP mmHg | 51±11.3 |
| TPR dyn·s·cm-5 | 1122±398 |
| CI L·min-1·m-2 | 2.1±0.5 |
| Long-term oxygen therapy | 11 (23) |
| Diuretic therapy | 30 (64) |
| Anticoagulation | 47 (100) |
Data are presented as mean (range), n, n (%) or mean±sd, unless otherwise indicated. PEA: pulmonary endarterectomy; WHO: World Health Organization; 6MWT: 6-min walk test; mPAP: mean pulmonary artery pressure; TPR: total pulmonary resistance; CI: cardiac index.