What causes cardiac ischemia? What are the symptoms of ischemic heart disease?

Coronary heart disease is an ischemic heart disease that is often referred to as coronary heart disease in daily life, but ischemic heart disease is not directly equivalent to coronary heart disease. Ischemic heart disease is a common type of myocardial injury caused primarily by coronary artery disease, i.e. alterations in the coronary artery circulation. The most common is coronary arteriosclerosis, which is coronary heart disease.

In addition, it includes other coronary artery diseases such as inflammation, aneurysms, metabolic diseases, etc.

Most patients with ischemic heart disease have a clear history of coronary artery disease and myocardial infarction. The main clinical symptoms are angina pectoris or myocardial infarction. Patients with angina pectoris will gradually lessen or even disappear as the disease progresses.

In the end, they will only experience symptoms such as chest tightness, fatigue, or difficulty breathing. When ischemic heart disease progresses to a certain stage, patients develop heart failure and arrhythmias. Acute myocardial ischemia impairs the diastolic and systolic functions of the myocardium.

Symptoms such as difficulty breathing, fatigue, and weakness occur at night. In severe cases, discomfort such as loss of appetite, edema, and bloating can occur.

Patients who are bedridden for a long time will develop venous thrombosis of the lower extremities, and patients with normal or mild myocardial systolic function will develop restrictive ischemic heart disease. Dyspnea on exertion, as well as angina, should not be active and should not be accompanied by pulmonary edema. Many people experience tinnitus when they have ischemic heart disease.

This is usually caused by cerebral ischemia caused by coronary atherosclerosis. Many patients will have varying degrees of tinnitus. But this symptom is also easy to ignore.

You may think it's caused by an ear, nose and throat disorder.

Chest tightness and chest pain are typical of ischemic heart disease. When the nutrients and oxygen provided by the heart muscle cells are insufficient, the blood vessels are very narrow and the blood circulation is not smooth. When doing physical activity, the blood vessels do not provide enough oxygen, and chest pain moxibustion occurs.

This is even more pronounced when some older people are on stairs or doing physical activity. After ischemic heart disease, a lack of blood** may lead to symptoms such as dizziness and syncope. This is also due to insufficient blood supply to the brain, but it also needs to be differentiated from some cerebrovascular diseases.

The main symptoms of ischemic heart disease include: 1 Some patients have no symptoms, only on electrocardiogram, imaging examination, show myocardial ischemia. 2. Most patients show varying degrees of angina due to myocardial ischemia and hypoxia.

3 In addition to angina, other symptoms include: Abnormal heartbeat rhythm and significantly faster speed. Chest pain radiates all around and can affect the shoulders, neck, jaw and arms.

Difficulty breathing, especially during exercise. Nausea and vomiting. Covered in a cold sweat.

fatigue, weakness, etc.

Fatigue and weakness are common. Peripheral edema and abdominal distension are more common in complications with right-sided heart failure. Angina pectoris is one of the clinical symptoms of patients. Chest tightness, shortness of breath, paroxysmal dyspnea.

If you have symptoms such as chest tightness, palpitations, shortness of breath, palpitation, and pain in the precordial area, you should go to the hospital in time**.

There are symptoms of weakness in the limbs, symptoms of loss of appetite, symptoms of heart pain, symptoms of dizziness of the mind, and symptoms of lack of sleep.

In recent years, with the improvement of living standards, myocardial ischemia has shown a trend of younger people, and young people in their 20s have also experienced myocardial ischemia. Myocardial ischemia is divided into occult coronary heart disease, angina pectoris, myocardial infarction, ischemic cardiomyopathy, sudden death and so on.

The most common cause of myocardial ischemia is coronary atherosclerosis, followed by inflammation (rheumatism, syphilis, Kawasaki disease, and vasoangiitis obliterans, etc.), spasticity, embolism, connective tissue diseases, trauma, and congenital malformations. Epidemiological studies have found that important risk factors associated with atherosclerosis are hyperlipidemia, hypertension, diabetes, smoking, obesity, increased homocysteine, low physical activity, advanced age, and male sex.

A common cause of myocardial ischemia.

1) Drinking: This is one of the causes of myocardial ischemia, long-term drinking of a large amount of high liquor has a damaging effect on the function of the heart, blood vessels, liver and other organs, resulting in myocardial ischemia, which can lead to alcoholic cardiomyopathy, liver cirrhosis, and hypertension; Moderate consumption of low-alcohol colored wines, such as wine, reduces the risk of coronary heart disease because drinking alcohol can increase HDL concentrations.

2) Oral contraceptives: This can also lead to myocardial ischemia, long-term oral contraceptives can increase blood pressure, increase blood lipids, abnormal glucose tolerance, and change the coagulation mechanism at the same time, increasing the chance of thrombosis. Therefore, this is also a major factor that leads to myocardial ischemia.

3) Dietary habits: eating a high-calorie, high-animal fat, high-cholesterol, high-sugar diet is prone to coronary heart disease, and other changes in the intake of trace elements are also the causes of myocardial ischemia.

1. Excessive strain and excessive myocardial blood consumption can cause relative ischemia of myocardium.

2. Volume insufficiency, systemic ischemia, can cause corresponding ischemia of myocardium.

3. The blood vessels supplying blood to the myocardium are not smooth, which can cause blood supply disorder ischemia of the myocardium.

4. Excessive aggregation of red blood cells, excessive blood viscosity and excessive impurities can cause myocardial blood circulation ischemia.

5. According to the different causes of myocardial ischemia, symptomatic treatment should be used to eliminate the causes.

It is a cardiovascular and cerebrovascular disease, which is caused by blockage of the blood vessel wall and poor blood flow.

Cardiovascular and cerebrovascular diseases refer to the general term for heart and brain diseases caused by various vascular problems, including cardiovascular diseases and cerebrovascular diseases.

Cardiovascular diseases are mainly coronary heart disease, which is manifested in various forms such as angina, myocardial infarction, and sudden cardiac death.

Cerebrovascular disease refers to the rupture of cerebral blood vessels, bleeding or thrombosis, commonly known as stroke, including cerebral hemorrhage, cerebral thrombosis, and cerebral embolism.

Myocardial ischemia is also related to poor vascular elasticity, 1 from the nutritional point of view, supplement some calcium, protein, vitamin B group and vitamin C, form collagen to increase blood vessel elasticity; 2 From the perspective of traditional Chinese medicine, it is to stay up late for a long time or live and work under great pressure, and seriously overdraft the body, resulting in insufficient qi and blood, and blood vessels lose elasticity. 3 From the perspective of Western medicine, it is caused by the "three highs" of cardiovascular and cerebrovascular diseases. In the final analysis, it is the above two reasons that lead to the formation of the third reason.

If the nutrition is sufficient, the qi and blood are sufficient, the body's metabolism will be normal, and the garbage will naturally be excreted from the body, so there will be no garbage piled up on the blood vessel wall, and there will be no blood vessel blockage and hardening. In this sense, shortness of heart and lack of blood will not be formed.

It is because the blood vessels (that is, the coronary arteries) of the heart are blocked, and the blockage is due to the following reasons:

1: Atherosclerosis (AS), or its rupture to form a thrombus, which blocks the blood flow to the heart**, resulting in myocardial ischemia.

2.Congenital malformations of the heart vessels (such as myocardial bridges) can cause arterial spasm under strenuous exercise or other triggers, and can also lead to poor blood supply to the heart, resulting in myocardial ischemia.

3.If the heart itself is faulty, it cannot drain blood to the blood vessels of the whole body, so the coronary arteries are relatively ischemic.

The atherosclerosis mentioned above is related to obesity, high blood pressure, high blood lipids, smoking, excessive alcohol consumption, and genetics. It is multifactorial.

It is mainly caused by coronary atherosclerosis and coronary spasm, the former is closely related to hypertension, smoking, hyperlipidemia, diabetes, high-salt diet, etc., causing coronary stenosis; The latter is generally functional, and the coronary artery structure is usually normal, but the reactivity changes, which can cause pain attacks when the body's oxygen demand increases. The former is general**: anti-myocardial ischemia, anti-platelet, control of blood lipids, blood pressure, blood sugar, light diet, quit smoking, exercise; The latter can be used with calcium antagonists.

Consult your attending physician for details.