Limitations Fundamental limitations must be underlined. The study was a retrospective analysis. There was no comparison group (case-controlled patients without SVT). History of stroke/TIA at the time of EPSwasnotedbuttherewasnofurtherevaluation for stroke/TIA. History of AF at the time of EPS was used without any screening for asymptomatic AF in follow-up monitoring done only for symptoms of palpitations and in patients treated with ablation. Onthispoint,letusrecallthenotionof“silentAF” that is likely in patients with SVT. In the group of patients with paroxysmal SVT, asymptomatic arrhythmia events were significantly less frequent than symptomatic arrhythmia events.25 In a group of patients with paroxysmal AF, sustained asymptomatic AF occured far more frequently than symptomatic AF.25