Hunuk B, et al. - Through 434 consecutive patients with structurally normal hearts who underwent radiofrequency (RF)-pulmonary vein isolation (PVI) as index procedure for paroxysmal atrial fibrillation (AF), the researchers evaluated the early repolarization patterns (ERP) prevalence for paroxysmal atrial fibrillation (AF) ablation and its correlation with the AF recurrence. In 67 patients who were significantly younger, demonstrating longer PR-interval and lower heart rates, ERP was noticed. In contrast to the ones without an infero-lateral ERP, higher recurrence was observed in middle-aged patients with an infero-lateral ERP. Also, infero-lateral ERP could significantly predict recurrence. Hence, the prevalence of early repolarization patterns was more in the examined AF population than in the overall population. In the follow-up after RF-PVI in middle-aged patients, infero-lateral ERP in baseline ECG could guess the recurrence of AF. .