Baseline characteristics of included patients
| N | 39 |
| Age, years (IQR) | 42.5 (38.6–45.1) |
| Height, cm (SD) | 182.2 (8.6) |
| Weight, kg (SD) | 86.1 (11.4) |
| Male sex, n (%) | 32 (82) |
| Hypertension, n (%) | 3 (2 without treatment) (8) |
| Diabetes mellitus, n (%) | 0 (0) |
| Ischaemic heart disease, n (%) | 0 (0) |
| Paroxysmal atrial fibrillation, n (%) | 26 (67) |
| LV EDV, mL/m2 (SD) | 92.5 (14.7) |
| LV ESV, mL/m2 (SD) | 37.7 (7.8) |
| LV SV, mL/m2 (SD) | 54.9 (9.2) |
| LV EF (%) | 59.4 (5.0) |
| LV myocardial mass (diastole), g/m2 (SD) | 62.4 (11.0) |
| RV EDV, mL/m2 (SD) | 96.9 (17.2) |
| RV ESV, mL/m2 (SD) | 43.1 (9.1) |
| RV SV, mL/m2 (SD) | 53.7 (9.7) |
| RV EF (%) | 55.6 (4.4) |
Values are shown as mean (SD) or median (IQR).
EDV, end-diastolic volume; EF, ejection fraction; ESV, end-systolic volume; LV, left ventricle; RV, right ventricle; SV, stroke volume.