Heart attack refers to acute myocardial infarction, heart failure refers to heart failure, the occurrence of disease without stenting, conservative treatment can be, but the effect is not as good as stenting, and insufficient blood supply to the heart tissue is more difficult to recover. Because myocardial infarction refers to the ischemic necrosis of the heart’s cardiomyocytes, which is a serious disease caused by coronary artery thrombosis and vascular obstruction. If a stent is implanted in time after the onset of the disease, it can effectively reduce the scope of myocardial necrosis, restore the patency of blood vessels, improve the myocardial blood supply, and protect cardiac function. Therefore, if there are conditions for stent implantation, the first choice is stenting. Myocardial infarction will affect the heart function, manifested as heart failure, the recovery of symptoms and the patient’s infarction area and the infarction occurs when the treatment has a great relationship, if the infarction area is large, conservative treatment may have a poor prognosis, the survival rate may be on the low side, and the treatment of timely and proper, the survival rate may be high. It is recommended to listen to the advice of the attending physician and choose the most suitable treatment after a comprehensive assessment of the situation.