Likewise, we found no significant difference between BNP concentrations at baseline and those at one month in either the SR group (205.9 ± 99 vs. 182.2 ± 180.4 pg/mL respectively, p = 0.30) or the AF group (197 ± 139 vs. 182.5 ± 107.1 pg/mL respectively, p = 0.91). Here, NPPB is linked to atrial fibrillation.