Objective: Objective to study the effect of Danshen injection, Shen Fu Injection and Shenmai injection after myocardial infarction heart failure rat N-terminal pro brain natriuretic peptide (NT-proBNP) precursors, left ventricular ejection ejection fraction (LVEF) and myocardial pathological morphology, to measured syndrome preliminary exploration of TCM Syndrome Types in the rat model of congestive heart failure.Methods: 50 SD rats were fed for 1 week in the SPF animal laboratory.1 week later, according to the random number table method ra...