Two-dimensional and M-mode echocardiographic right atrial and right ventricular dimensions on ARVC patients, athletes and untrained control subjects
| ARVC (n=40) | Athletes II (n=40) | Controls (n=40) | ARVC vs athletes | ARVC vs controls | Athletes vs controls | |
|---|---|---|---|---|---|---|
| RA1 (mm) | 47.9 (7.2) | 47.4 (6) | 43.6 (5.3) | 0.73 | 0.00001 | 0.003 |
| RA2 (mm) | 45.7 (8.1) | 45.1 (3.7) | 39.5 (6.3) | 0.671 | 0.0003 | 0.0001 |
| RVAd (cm2) | 25.7 (3) | 24.5 (3.2) | 19.3 (3.7) | 0.08 | 0.0001 | 0.0001 |
| RVAs (cm2) | 15.1 (2.8) | 13.7 (3.7) | 10.3 (2.3) | 0.06 | 0.00001 | 0.00001 |
| RVFAC (%) | 40 (7.9) | 44 (10) | 46 (5.7) | 0.05 | 0.0002 | 0.0017 |
| RVIT1 (mm) | 56.9 (6.9) | 54.5 (5.5) | 48.5 (5.7) | 0.08 | 0.00001 | 0.00001 |
| RVIT2 (mm) | 32.3 (6.3) | 31.8 (5.7) | 27.4 (5.3) | 0.6 | 0.0006 | 0.0002 |
| RVIT3 (mm) | 38.6 (5.6) | 36.1 (6.3) | 33.2 (9.1) | 0.06 | 0.002 | 0.103 |
| RVSAX (mm | 33.3 (6.4) | 30.6 (5.7) | 27.1 (6.9) | 0.498 | 0.015 | 0.0001 |
| RVLAX (mm) | 82.3 (8.9) | 79.9 (7.6) | 77.2 (11) | 0.198 | 0.025 | 0.205 |
| RVOT1 (mm) | 33.6 (4.7) | 29.1 (3.4) | 28.8 (6.6) | 0.00001 | 0.0003 | 0.799 |
| RVOT3 (mm) | 30.1 (4) | 29.4 (2.7) | 25.6 (3.4) | 0.361 | 0.00001 | 0.00001 |
| RVOT4 (mm) | 35.6 (6.8) | 30.1 (2.9) | 29.6 (5) | 0.00001 | 0.00001 | 0.585 |
| RVOT4/AO ratio | 1.13 (0.23) | 1.06 (0.1) | 1 (0.13) | 0.081 | 0.0026 | 0.0233 |
| RVEDV (ml m2) | 76 (11) | 72 (11) | 53.9 (8.3) | 0.10 | 0.00001 | 0.00001 |
| RVEF (%) | 52.9 (8) | 59.9 (4.5) | 61.8 (6.6) | 0.00001 | 0.00001 | 0.1365 |
| LVEDV/RVEDV ratio | 0.82 (0.16) | 0.97 (0.23) | 0.99 (0.17) | 0.0011 | 0.00001 | 0.65 |
| Hypereflective moderator band | 8 (20%) | 7 (17%) | 4 (10%) | 0.7306 | 0.030 | 0.364 |
AO, aortic root; RA, right atrium, RVAd, right ventricular end-diastolic area; RVAs, right ventricular end-systolic area; RVEDV, right ventricular end-diastolic volume; RVEF, right ventricular ejection fraction; RVFAC, right ventricular fractional area change; RVLAX, right ventricular long axis; RVSAX, right ventricular short axis; RVIT, right ventricular inflow tract; RVOT, right ventricular outflow tract.