However, our study also had several strengths, including a period of follow-up longer than other studies, deep and systematical evaluation of associations of the risk scores, biomarkers and atrial remodeling with the recurrence of AF, which allowed us to recognize the usefulness of BNP as a predictor of recurrence after ablation treatment of atrial fibrillation and at the same time to recognize the attention at that time. Here, NPPB is linked to atrial fibrillation.