Echographic findings at 6 months
| Variable | Total | RXT | NRXT | p Value |
|---|---|---|---|---|
| Ejection fraction (%) | 59.1±11.3 | 58±12.5 | 59.3±11.3 | 0.67 |
| Ejection fraction <35% | 5/141 (3.5%) | 0/18 (0%) | 5/123 (4.1%) | 1 |
| Aortic valve area (cm2) | 1.63±0.39 | 1.58±0.26 | 1.64±0.41 | 0.77 |
| Mean gradient (mm Hg) | 9.8±5.3 | 8.9±3.9 | 10±5.4 | 0.55 |
| Aortic regurgitation ≥2 | 12/141 (8.5%) | 0/18 (0%) | 12/123 (9.8%) | 0.36 |
| Mitral regurgitation ≥2 | 27/141 (19.1%) | 2/18 (11.1%) | 25/123 (20.3%) | 0.53 |
| Mitral stenosis | 24/141 (17.0%) | 10/18 (55.6%) | 14/123 (11.4%) | 0.00006 |
| Pulmonary artery pressure (mm Hg) | 39.2±13.1 | 36.8±11.4 | 40.2±14.5 | 0.44 |
| Pulmonary artery pressure ≥50 mm Hg | 31/138 (22.5%) | 4/18 (22.2%) | 27/120 (22.5%) | 1 |
NRXT, non-radiation-induced valvular disease; RXT, radiation-induced valvular disease.