Hello! Thank you for asking on HCM! I understand your concern about this very important topic, when dealing with supraventricular arrhythmia. I would like to explain that as far as cardiac ablation is considered successful and no recurrences of arrhythmia will be present, then there is no need to continue on anticoagulation therapy (as the risk of cardio-embolic event is quite insignificant). But, it remains to be defined the probability of atrial arrhytmias (atrial fibrillation or flutter) recurrences. The best way to clarify this issue is to review all the predisposing factors (facing clinical and laboratory grounds) by your attending cardiologist or internist, like the presence of any cardiomyopathies, thyroid dysfunction, ischemic heart disease, any associated important valvular diseases, etc. Hope to have been helpful! Greetings! Dr. Iliri