| SAVV | systemic atrio-ventricular valve |
| SAVVR | systemic atrio-ventricular valve regurgitation |
| TAPSE | tricuspid annular plane systolic excursion |
| MAPSE | mitral annular plane systolic excursion |
| EF | ejection fraction |
| FAC | fractional area change |
| GLS | global longitudinal strain |
| STE | speckle tracking echocardiography |
| NYHA | New York Heart Association |
| IVC | inferior vena cava |
| CPET | cardiopulmonary exercise test |
| VO2 max | maximum oxygen consumption |
| PLE | protein losing enteropathy |
| FALD | Fontan-associated liver disease |
| LSPS | liver stiffness-spleen size to platelet ratio |
| APRI | AST to platelet ratio index |
| FIB-4 | Fibrosis 4 |
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