Treatment
ICD implantation was performed in 20 of 22 (90.9%) from the symptomatic group, and 27 of 116 from the asymptomatic group (23.3%). An ICD was implanted in 20 of 27 (74.1%) of the asymptomatic patients due to a positive EPS. In the seven remaining asymptomatic patients, ICD had other reasons for indication, like family history of sudden cardiac death, anxiety or dubious syncope at initial evaluation.