What are the changes in heart rate and blood pressure during myocardial infarction?

Myocardial infarction refers to myocardial infarction. Changes in heart rate and blood pressure during myocardial infarction include heart rate first accelerating and then slowing down, blood pressure first increasing and then decreasing, etc.

1. Heart rate first accelerates and then slows down in the

early stage of myocardial infarction. In order to maintain normal blood supply demand, the heart will compensate for the acceleration of heart rate to compensate for the influence caused by ischemia, so that heart rate will accelerate. With the further development of myocardial infarction, the heart conduction system is damaged, resulting in slow electrical signal conduction and heart rate will slow down.

2. Blood pressure first increases and then decreases in the

early stage of myocardial infarction. In order to compensate for the necrosis of myocardial cells, the body will start the compensatory mechanism, so that blood pressure will increase to maintain normal blood supply demand. With the development of myocardial infarction, due to myocardial ischemia and cardiac conduction system damage, the heart's ability to pump blood will be weakened, resulting in blood pressure drop, or even shock.