There is no accurate data on blood pressure and heart rate in heart attack, and there will be different changes in blood pressure and heart rate in different parts of heart attack. When myocardial infarction occurs, it often indicates that myocardial ischemia is more serious, and some patients will have reactive changes in blood pressure and heart rate, which are compensatory changes. The specific changes in heart rate and blood pressure after an infarction are related to the location of the infarction. In the case of an inferior wall myocardial infarction, there may be a decrease in blood pressure and a slowing of the heart rate, or even the occurrence of cardiogenic shock. In the case of anterior wall myocardial infarction, heart failure can be characterized by an increase in heart rate and a decrease in blood pressure. Changes in heart rate and blood pressure during myocardial infarction are influenced by a variety of factors, and there are no accurate clinical data. Myocardial infarction is a very serious disease, and after the onset of the disease, blood pressure and heart rate should be closely monitored, and rapid treatment should be given under the guidance of a physician.