ACE and heart failure: There was a significant difference between survival and non-survival in age, gender, hypertension, diabetes, history of heart failure, chronic renal disease, heart rate, systolic blood pressure, diastolic blood pressure, Killip classification, fasting blood sugar, t-wave inversion ≥ 1 mm, bundle branch block bundle, ECG abnormal in inferior leads and anterior leads, cardiac catheterization, PCI, aspirin, GPRI, LMWH, beta-blocker, ACE inhibitor, statin, diuretics, oral hypoglycaemic agent, insulin, and Anti-arrhythmic agent (all variables with p-value < 0.0001).