Statistically significant differences were observed between the MACEs and non-MACEs groups concerning age, gender, diastolic blood pressure (DBP), smoking, drinking, hypertension, stroke, previous myocardial infarction, Killip classification, NT-proBNP, LDL, TGs, creatinine, expired myocardial infarction, left ventricular ejection fraction (LVEF), left circumflex artery (LCX), stenosis of other brunches, and inpatient days (p < .05). This evidence concerns the gene NPPB and myocardial infarction.