The NT-proBNP levels determined in the acute phase of the disease were significantly higher in the group of deceased patients after 12 months than in the group of those who were alive a year after their myocardial infarction (14273 ± 16419 pg/mL versus 4547 ± 6468 pg/mL, p < 0.0001) (Figure 3). This evidence concerns the gene NPPB and myocardial infarction.