A myocardial infarction is a heart attack. There is no specific numerical basis for when heart failure occurs after stenting for myocardial infarction, and whether or not heart failure occurs varies from person to person. Myocardial infarction is a relatively common acute cardiovascular disease, and stenting is also a common treatment, stenting can support the occluded blood vessels or residual narrow blood vessels to restore blood flow. If the patient’s procedure is successful and he or she follows the doctor’s instructions and cooperates with the treatment, heart failure may not necessarily be triggered. If the patient still has diastolic or systolic dysfunction after the procedure, it may lead to heart failure. However, there is no accurate value to support whether or when heart failure will occur after stenting for myocardial infarction, and patients should follow up regularly after stenting and pay attention to rest and regular medication.