ECG characteristics
| Patients with HCM | Healthy non-athletes | Healthy athletes | |
|---|---|---|---|
| N | 45 | 110 | 276 |
| LVH (Sokolow-Lyon criteria) | 67.4 (30) | 7.3 (8) | 15.9 (44) |
| Inverted T waves | 62.8 (28) | 0 (0) | 9.4 (26) |
| T wave inversions in V1–V4 | 25.6 (12) | 0 (0) | 8.7 (24) |
| T wave inversions in inferior leads | 51.2 (23) | 0 (0) | 2.9 (8) |
| T wave inversions in lateral leads | 23.3 (10) | 0 (0) | 1.1 (3) |
| Left-axis deviation | 23.3 (10) | 0.9 (1) | 0 (0) |
| LA enlargement | 23.3 (10) | 0.9 (1) | 0.7 (2) |
| ST-segment depression | 25.6 (12) | 0 (0) | 0.4 (1) |
| Ectopy | 9.3 (4) | 0.9 (1) | 1.4 (4) |
Data are presented in percentage (absolute numbers).
HCM, hypertrophic cardiomyopathy; LA, left atrium; LVH, left ventricular hypertrophy.