NPPB and heart failure: Comparison of biochemical test data revealed that in NSTEMI patients, the AHF group had lower HDL-C levels compared with the non-AHF group, and higher levels of myocardial injury and heart failure markers (creatine phosphokinase, creatine kinase-MB, hydroxybutyrate dehydrogenase, and BNP), while there were no significant differences among the STEMI patients.