Why do myocardial infarction appear suddenly?

 1. The essence of myocardial infarction is acute vascular occlusion?

Why does myocardial infarction happen suddenly? Why didn't it progress gradually, and then myocardial infarction occurred over a long period of time? This requires understanding of the definition of acute myocardial infarction. The occurrence of acute myocardial infarction is a disease that causes the sudden occlusion of the coronary arteries of the heart due to various reasons, which in turn leads to myocardial ischemia, hypoxia and necrosis. Therefore, no matter whether the coronary arteries were smooth, narrowed, or have other lesions... they all happen after the acute vascular occlusion, and there needs to be myocardial necrosis caused by the vascular occlusion! It can be seen that neither of the two elements of myocardial infarction is missing. The first is the acute occlusion of the blood vessel, and the second is the myocardial necrosis due to the occlusion. Since it is an acute occlusion of blood vessels, it must happen suddenly.

2. Why does myocardial infarction have no signs in advance?

In fact, it is not that myocardial infarction has no signs in advance. On the contrary, most mural myocardial infarctions have signs. The textbooks of internal medicine clearly point out that more than half of myocardial infarctions will have signs. But for two reasons, we may not be aware of the signs of acute myocardial infarction. On the one hand, it may be because some patients do not understand the signs of myocardial infarction, so that they have misjudged the signs that have already appeared, and cannot recognize the signs of acute myocardial infarction. On the other hand, the signs that may have occurred are not too serious, so that the patient ignores them, and even does not even notice the signs!

3. Can myocardial infarction be predicted?

Many patients and their families have the idea that myocardial infarction is so terrible, and the prior signs may not always be recognized, so can myocardial infarction be predicted? I often give examples to family members and patients. Before a driver has a car accident, there is a high probability that he may still be happily listening to a song and humming, but the next second may be a car accident. The occurrence of acute myocardial infarction is similar to this one. Most patients with wall myocardial infarction cannot be predicted. Even patients with high cardiovascular risk can only speculate that the probability of myocardial infarction is relatively high, but still It is impossible to predict when the patient will have a myocardial infarction. Therefore, when an acute myocardial infarction will occur, it cannot be accurately predicted.

The occurrence and development of anything, including disease progression, is a process of quantitative change causing qualitative change, and the same is true for the occurrence of myocardial infarction. After coronary artery atherosclerosis gradually occurs, although we have no symptoms during this process, it does not mean that this process did not occur. So it seems that myocardial infarction comes suddenly, but behind every myocardial infarction is a long-planned plan.

Do you now understand why all myocardial infarctions happen suddenly?