Abstract

The relationship between post-ablation excessive supraventricular ectopic activity (ESVEA), a new marker for new-onset atrial fibrillation (AF), and late AF recurrence is uncertain. We enrolled 469 patients with AF who underwent initial radiofrequency catheter ablation and 24-h Holter monitoring the day after. Early AF recurrence (n = 57; 12%) and ESVEA (n = 242; 52%) were noted. During a median follow-up of 25months, 152 (32%) patients experienced late AF recurrence. Patients with early AF recurrence or ESVEA were significantly more likely to experience late recurrence (p = 0.02). Even without AF, ESVEA was associated with late recurrence following AF ablation.

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