Parameter Mean value (range) or number (%)
Age (years) 45.78 ± 13.39
Body weight (kg) 67.83 ± 13.69
Male 57 (61.3%)
Preoperative symptoms
 Exertional dyspnea 84 (90.3%)
 Chest discomfort 67 (72.0%)
 Palpitation 17 (18.3%)
 Syncope/presyncope 16 (17.2%)
Medical therapy
 Beta-blocker 93 (100%)
 Calcium blocker 67 (72.0%)
Previous alcohol ablation 3 (3.2%)