No blockage or myocardial infarction

Date: 2018-11-06
Times of browsing: 61

Myocardial infarction is an acute disease that causes the public to talk about it. It is a disease caused by persistent ischemia of the heart. The most common cause of ischemia is blockage of the coronary arteries that supply blood to the heart. However, other diseases may also cause myocardial infarction. They also have some precursors. It is necessary to recognize these precursors and to prevent and treat them.

Coronary artery spasm is a common disease. Most patients'spasms are short-lived, which can cause chest tightness to varying degrees, but can recover by themselves. However, when the coronary artery continues to spasm, it will lead to myocardial ischemia for a long time, resulting in myocardial infarction. There are many causes of spasms, and smoking is the most important factor. Therefore, patients who have experienced coronary artery spasm or suffered from coronary atherosclerosis must strictly stop smoking to avoid more severe spasmodic attacks.

Coronary microcirculation lesions may also lead to myocardial infarction. Some patients have no obvious abnormalities in coronary angiography, but often suffer from angina pectoris, probably due to microcirculation disorders. The causes of microcirculatory disturbance are complex, including microvascular dysfunction and microthrombosis. When microcirculatory disturbance is serious, it may cause local myocardial infarction. Similarly, microcirculation disorders can lead to angina pectoris attacks. If microcirculation pathological changes are confirmed by examination, systematic drug treatment should be carried out as soon as possible to prevent further development into myocardial infarction.

In addition, there are some patients with coronary artery stenosis, but not completely blocked, there will be myocardial infarction. Although the blood flow can pass partly, the heart is still in a high energy consumption state. The blood supply is far from meeting the needs of the heart, and myocardial infarction occurs. Heart rate acceleration, sudden onset of hypertension and rapid arrhythmia caused by heavy drinking will lead to sudden increase of cardiac load. Without treatment, it is difficult to alleviate in a short time, and it is easy to cause myocardial infarction. This has sounded an alarm for patients already suffering from coronary heart disease. If the diagnosis of coronary heart disease is confirmed, it is necessary to avoid the above situation, and early treatment of other heart diseases to prevent more serious damage to the heart caused by various diseases.

In addition, we need to avoid misunderstandings of "the greater the risk of vascular blockage, the greater the risk of myocardial infarction". The risk of myocardial infarction is not necessarily directly related to the size of the plaque, and the stability of the plaque is also one of the most critical factors to determine whether or not the occurrence of myocardial infarction. In some cases, although small plaques were found on coronary CT or angiography and no serious blockage was found in the blood vessels, myocardial infarction could easily occur if the plaques were unstable and easily ruptured.

The causes of myocardial infarction include myocardial bridge, coronary artery inflammation, etc. In these cases, mild chest tightness and chest pain will occur first. With the progress of the disease, myocardial infarction will occur. Therefore, once symptoms such as compressive pain and chest tightness occur in the anterior thoracic region, it is necessary to actively carry out examination and early intervention for diseases that can cause myocardial infarction, so as to prevent myocardial infarction in the future.

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