| CTEPH | chronic thromboembolic pulmonary angioplasty |
| BPA | balloon pulmonary angioplasty |
| PEA | pulmonary endarterectomy |
| 6MWT | six-minute walk test |
| NT-proBNP | N-terminal pro-B-type natriuretic peptide |
| mPAP | mean pulmonary artery pressure |
| CI | cardiac index |
| PVR | pulmonary vascular resistance |
| PAH | pulmonary arterial hypertension |
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