Biomarkers NT-proBNP (1054.20 ± 833.30 pg/mL vs. 58.31 ± 59.40 pg/mL; p < 0.001), ST2 (35.43 ± 15.89 ng/mL vs. 27.43 ± 10.95 ng/mL; p < 0.001) and Hs-Tn T (10.25 ± 6.11 ng/L vs. 8.42 ± 6.85 ng/L; p < 0.001) were also significantly related to the presence of AF. This evidence concerns the gene NPPB and atrial fibrillation.