CRP (2.3 ± 1.0 vs. 1.5 ± 1.0 pg/mL; p < 0.001) and BNP (92.3 ± 56.4 vs. 62.8 ± 40.6 pg/mL; p < 0.001) were higher in the new-onset AF group. Here, NPPB is linked to atrial fibrillation.