Obviously the physical examination is normal but suddenly has a heart attack! The physical examination is a decoration, can't the heart attack be found?
Obviously, a few days ago, I just underwent a physical examination and there was no abnormality, but it didn't take long before I suddenly had a heart attack!
This situation sounds bizarre, but it is actually very common clinically. Many people trust the physical examination too much, believing that any disease will be exposed during the physical examination. As everyone knows, routine physical examination can indeed find some problems, such as hypertension, diabetes, high blood lipids, etc., but this can not be used as a basis for diagnosing myocardial infarction.
Moreover, even ecG, chest x-ray and other examinations related to heart health cannot detect myocardial infarction:
1. Electrocardiogram
When it comes to heart examination, the first thing that comes to mind is the electrocardiogram. But in fact, the ECG only records the electrical activity of the heart, it can detect part of the heart's ECG conduction, for the arrhythmia, myocardial ischemia, myocarditis and other diseases of clinical diagnosis has a certain special value, can provide a diagnostic basis.
However, it should be emphasized here that an abnormal ECG indicates that there may be a problem with the heart, and a normal ECG cannot ensure that the heart is normal, because the coronary arteries are narrowed or blocked, and sometimes they cannot be expressed by the ECG;
2. Chest x-ray
First of all, we must understand that the significance of chest x-ray is mainly to diagnose diseases of the chest cavity and lungs, in fact, it is not of great diagnostic significance to the heart, but it can only clarify the size of the heart shadow, whether there is lung congestion and other issues, and whether the coronary arteries are narrow, there is basically no significance of examination.
In clinical view, the examination items that can really find myocardial infarction are actually cardiac ultrasound, coronary CT angiography and so on. In particular, coronary CT angiography, which is often used as an important means to assess the degree of coronary stenosis, can effectively determine the location of coronary stenosis and the degree of blockage, so it is also the main way to predict the risk of myocardial infarction.
However, it is very unfortunate that even if you have performed the above two tests, it is only to judge the degree of blood vessel stenosis, the narrowing site, and the risk of myocardial infarction.
They are not sure that severe stenosis can cause myocardial infarction, and mild stenosis will not cause myocardial infarction. Because, the onset of acute myocardial infarction is uncontrollable and unconceivable!
We must clearly understand that the sudden onset of acute myocardial infarction is indeed based on excessive narrowing of the coronary veins and coronary heart disease. However, it is also related to the stability of plaques in the lining of blood vessels, also known as plaques of the arterial wall. Once these plaques fall off and rupture to form a blood clot, after embolizing the coronary arteries, regardless of the degree of coronary stenosis, it will cause myocardial infarction.
As for whether the nature of the plaque is stable, there is no good clinical examination method. Moreover, the plaque seems to be fixed, but it will be affected by a number of external factors to change, such as the patient's emotional overexcitement, extreme exertion, heavy smoking and alcoholism, etc., which may cause vasospasm, unstable plaque shedding, myocardial infarction.
Of course, it should be emphasized here that the physical examination is not meaningless. Only after the physical examination can everyone know whether they will have the risk of heart attack and do a good job in prevention in advance. In the clinical view, as long as there is a narrowing of blood vessels, three high diseases, coronary heart disease and other people, regardless of the degree of narrowing, we should start to prevent myocardial infarction.
There are two main aspects to the prevention of myocardial infarction, the first is the active control of primary diseases, especially in patients with hypertension who need to stabilize blood pressure. The second is the adjustment of life and diet, such as increasing the amount of exercise, actively losing weight, maintaining a light and healthy food intake, quitting smoking and alcohol, getting enough sleep, and having an optimistic and cheerful attitude, so as to minimize the risk of myocardial infarction.