Myocardial infarction, did not do bypass and stent, excuse me what treats myocardial infarction good

For patients with myocardial infarction, the treatment method is determined according to the condition. If the patient's myocardial infarction is mild, thrombolytic therapy can be used instead of surgery. If the myocardial infarction is severe and the stenosis area reaches more than 75%, cardiac stent surgery is required.