The BNP (3535.96 ± 3025.35 pg/mL) and BUN (7.20 ± 3.49 mmol/L) levels were increased in patients with pMIHF compared to those in patients with MI (BNP = 328.5 ± 299.842 pg/mL, BUN = 5.24 ± 2.15 mmol/L) (P < 0.05). This evidence concerns the gene NPPB and myocardial infarction.