| 6MWD | Six-Minute Walk Distance |
| BMI | Body Mass Index |
| BPA | Balloon Pulmonary Angioplasty |
| CTA | Computed Tomography Angiography |
| CTEPD | Chronic Thromboembolic Pulmonary Disease |
| CTEPH | Chronic Thromboembolic Pulmonary Hypertension |
| CO | Cardiac Output |
| ESC | European Society of Cardiology |
| FEV1 | Forced Expiratory Volume in One Second |
| LV | Left Ventricle |
| mMRC | Modified Medical Research Council |
| mPAP | Mean Pulmonary Artery Pressure |
| NYHA | New York Heart Association |
| PCWP | Pulmonary Capillary Wedge Pressure |
| PE | Pulmonary Embolism |
| PEA | Pulmonary Endarterectomy |
| PEmb-QoL | Pulmonary Embolism Quality of Life |
| PH | Pulmonary Hypertension |
| PPES | Post-Pulmonary Embolism Syndrome |
| PVR | Pulmonary Vascular Resistance |
| QoL | Quality of Life |
| RA | Right Atrium |
| RHC | Right Heart Catheterization |
| RV | Right Ventricle |
| RVPO | Residual Pulmonary Vascular Obstruction |
| SF-36 | Short Form 36 |
| SPECT | Single-Positron Emission Computed Tomography |
| TTE | Transthoracic Echocardiogram |
| TRV | Tricuspid Regurgitation Velocity |
| V/Q | Ventilation/Perfusion Scan |
| VD/VT | Dead-Space Fraction |
| VE/VCO2 | Ventilation as a Function of Exhaled CO2 |
| VO2 | Rate of Oxygen Use |
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