NPPB and myocardial infarction: The improvement degree of IMA, NT-proBNP, Lp(a), and SFRP5 was higher in both the groups A and B compared to group C. The improvement degree of IMA, NT-proBNP, Lp(a), and SFRP5 levels was higher in group A compared to group B. It shows that dapagliflozin may improve the serum level of cardiac function markers in myocardial infarction patients who undergone PCI, and dapagliflozin combined with metoprolol sustained-release tablets is more effective.