What are the harms of myocardial ischemia?

Myocardial ischemia is a relatively common disease in heart disease, after myocardial ischemia, the heart can not complete its work normally, and in severe cases, it will also pose a certain threat to the patient's life, so patients with myocardial ischemia must be carried out as soon as possible**, so what is the harm of myocardial ischemia?I'm going to talk to you today.

1. Angina pectoris, arrhythmia. Oxygen is one of the indispensable substances of human cardiomyocytes, oxygen can be delivered to all cells in the body through the blood, but once there is myocardial ischemia, it is likely to lead to myocardial hypoxia, myocardial hypoxia, and in severe cases, it will cause patients angina, decreased heart function and arrhythmia.

2. Myocardial infarction. Myocardial infarction is one of the more common hazards of myocardial ischemia, irreversible damage will occur half an hour after the myocardium stops supplying blood, which can cause the death of cells in the ischemic central area of the infarction, and the harm will be more serious, and even cardiogenic shock and heart failure may occur.

3. Cardiometabolic disorders. Myocardial ischemia not only causes metabolic dysfunction of the heart, but may also lead to other complications, such as damage to myocardial metabolites due to decreased production of high-energy phosphate compounds.

4. Acidosis. Myocardial ischemia will hinder the body's oxygen metabolism to a certain extent, acid metabolites will increase, and the obstruction of blood flow will make these acidic substances unable to be removed in time, resulting in a decrease in the pH value of the myocardium and acidosis.

5. Pulmonary congestion. Myocardial ischemia not only causes some damage to the diastolic function of the heart, but also causes poor diastolic and contractile problems, resulting in ventricular filling, which in turn causes pulmonary congestion.

To sum up, the harm of myocardial ischemia to the human body is still relatively serious, not only will lead to myocardial infarction, but also may cause angina, arrhythmia and other complications, so patients with myocardial ischemia must go to the hospital in time, and in daily life, they should also develop a regular diet, which can play a certain role in preventing myocardial infarction.

The main harm of myocardial ischemia in clinical practice is that it will cause patients to have more typical symptoms. For example, angina pectoris is often the most common clinical manifestation of myocardial ischemia, it is often in a clear trigger, such as emotional agitation, overwork, in these prerequisites and in the case of occurrence, the patient has chest tightness or even chest pain, typical myocardial ischemia often lasts 15 minutes to 30 minutes, and the patient can quickly relieve the symptoms at rest. Once such typical symptoms of myocardial ischemia appear, patients should be reminded to actively seek medical attention, clarify the nature and extent of their heart disease, and take the correct way.

If there is long-term and chronic myocardial ischemia, it will cause cardiac remodeling, that is, heart enlargement and heart failure, causing patients to have more serious clinical manifestations, such as dyspnea, chest tightness, edema of both lower limbs, loss of mobility, etc. Therefore, if there are symptoms of myocardial ischemia, you should actively seek medical attention and do not delay for a long time to cause more serious clinical recovery.

The condition of myocardial ischemia may lead to cardiac diseases, myocarditis, heart disease, coronary heart disease, and arrhythmia, which are very harmful to the human body, and may affect the safety of people's lives in serious cases.

Myocardial ischemia is very harmful to the body, and may cause symptoms such as myocarditis, heart disease, cardiogenic disease, coronary heart disease, angina, and sinus arrhythmia.

Myocardial ischemia, if not timely and effective, leads to many serious consequences:

First, various arrhythmias. These include frequent premature contractions, tachycardia, atrial fibrillation, atrioventricular block of the heart, and more.

Second, myocardial infarction can occur. Because patients with coronary heart disease do not have timely and effective **, resulting in plaque rupture, platelets in the blood can accumulate on the plaque, thus forming thrombosis, resulting in avascular necrosis of the myocardium.

Third, it can cause cardiac insufficiency, that is, heart failure. Because long-term myocardial ischemia leads to the weakening of the contractility of the heart, or even the expansion of the heart, heart failure will gradually form in the later stage.

1 Oxygen is essential for the activity of cardiomyocytes, and oxygen is delivered to cells through the blood. Therefore, once ischemia, it will immediately cause myocardial hypoxia. The direct consequence of hypoxia is that the aerobic metabolism of myocardial cells is weakened, and the production capacity is reduced, so that the necessary energy for heart activity is insufficient, causing angina, arrhythmia, cardiac function decline and other discomforts.

2. During myocardial ischemia, due to the obstruction of aerobic metabolism, the increase of acidic metabolites, and the failure of blood flow, these acidic metabolites cannot be removed in time, so that the pH of the myocardium decreases rapidly, and acidosis occurs.

Metabolic disturbances caused by myocardial ischemia can also cause a significant decrease in the production of high-energy phosphate compounds, and the accumulation of metabolites that cause myocardial injury in the myocardium.

3. Myocardial ischemia can also impair the diastolic function of the heart. The combination of poor systolic and diastolic cardiac tends to increase ventricular filling pressure, causing pulmonary congestion.

4. Myocardial infarction is the necrosis of the myocardium due to severe and persistent ischemia, and it is generally believed that irreversible damage can occur after 20-30 minutes after the myocardium stops bleeding, and most of the cells in the central area of ischemia die. The larger the infarction, the more serious the consequences, and even lead to heart failure, cardiogenic shock and other symptoms.

The symptoms of myocardial ischemia are mainly chest tightness, chest pain, dyspnea and other symptoms, and the symptoms are obvious after activity. Long-term myocardial ischemia can cause coronary heart disease, myocardial infarction, heart failure and other risks, mainly rest more, do not drink, do not work, you can take drugs to nourish the myocardium, such as trimetazidine to improve myocardial ischemia.

1. Hypoxia.

Hypoxia is an essential substance for the activity of myocardial cells, which is transported to cells through the blood, and insufficient blood supply to the myocardium immediately causes hypoxia.

2. Aerobic metabolism is weakened.

The hypoxia caused by myocardial ischemia can directly lead to the weakening of the aerobic metabolism of myocardial cells, reduce the production capacity, and make the necessary energy for heart activity insufficient, causing angina, arrhythmia, and decreased cardiac function.

3. Affect the systolic function of the heart.

Myocardial ischemia, hypoxia, and lack of energy will affect the systolic function of the heart, according to research statistics, the myocardium stops contracting, and left ventricular failure usually occurs, and the myocardium cannot contract, there will be severe heart pump failure, and cardiogenic shock is prone to occur.

4. Impaired cardiastolic function.

Myocardial ischemia impairs diastolic function, which is mainly manifested by the coexistence of myocardial malcontraction and diastolic malfunction, and the increase of ventricular filling pressure, which can not only cause pulmonary congestion, but also cause complex substance metabolism disorders and myocardial dysfunction.

Suggestion: Hello, myocardial ischemia refers to a pathological state in which the blood perfusion of the heart is reduced, resulting in a decrease in oxygen supply to the heart, abnormal myocardial energy metabolism, and cannot support the normal work of the heart.

Decreased blood pressure, decreased blood supply to the aorta, and blocked coronary arteries can directly lead to a decrease in blood supply to the heart; Valvular heart disease, changes in blood viscosity, and lesions of the heart muscle itself can also reduce the blood supply to the heart. There is also a condition in which the blood supply to the heart is not reduced, but the oxygen requirement of the heart increases, which is a type of relative myocardial ischemia. The blood vessels that supply blood to the heart are called coronary arteries, and their openings are in the ascending aorta.

Therefore, clinical results show that the main and most common cause of myocardial ischemia is coronary artery stenosis. And the main cause of coronary artery stenosis is atherosclerosis.

Heart disease caused by coronary atherosclerosis is often referred to as coronary heart disease. Therefore, coronary heart disease is the "main culprit" of myocardial ischemia. In addition, congenital malformations of the coronary arteries, familial hypercholesterolemia, coronary artery spasm, X syndrome, Kawasaki disease, coronary artery inflammation or trauma can cause myocardial ischemia.

Figuring out the cause of the disease is beneficial to the disease. What are the causes of myocardial ischemia? Next, let's take a look at the causes of myocardial ischemia with the introduction of experts.

The causes of myocardial ischemia are as follows: (1) Drinking: Long-term drinking of high liquor has a damaging effect on the function of the heart, blood vessels, liver and other organs, causing 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 are also the cause of myocardial ischemia: long-term oral contraceptives can increase blood pressure, increase blood lipids, and abnormal glucose tolerance, while changing the coagulation mechanism and increasing the chance of thrombosis. (3) Eating habits:

Eating a diet high in calories, animal fats, cholesterol, and sugar is susceptible to coronary heart disease, and changes in the intake of trace elements are also causes of myocardial ischemia. The above is an introduction to the causes of myocardial ischemia, in fact, there are many reasons for myocardial ischemia, the above is only a part, I hope the above content can help you, if you have other questions about the causes of myocardial ischemia, please consult ** experts, experts will answer you in detail.