Inconclusion,wenotedahigherprevalenceof stroke of 2.8% than in the general population, but a lower incidence of approximately one case per 1,000 person-years. The patients who had history of stroke were at risk of events as cardiovascular death or development of AF. Only advanced age and history of paroxysmal AF were identified as independentriskfactorsofstroke.Radiofrequency ablation of slow pathway or AP did not appear to reduce the risk of serious clinical events. At the light of these observations, we recommend a careful monitoring of elderly patients with SVT and without known other arrhythmias, even after ablation of their tachycardia