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Demographic and clinical characteristics of patients
| Number of patients (n) | 19 |
| Age (mean±standard deviation, range) | 12±4 (1.5-17 years) |
| Gender, male | 14 |
| Weight (kg) | 44±21 |
| BSA (m2) | 1.2±0.4 |
| Symptomatic patients (n) | 14 |
| Palpitation | 5 |
| Chest pain | 1 |
| Syncope | 4 |
| Fatigue | 1 |
| Heart failure | 2 |
| Cardiac arrest | 1 |
| Asymptomatic patients | 5 |
| Follow-up period (mean±standard deviation, range) | 21.5±11 (7-50 months) |
