First, chest pain at night or at rest
Pain in the precordial region at rest or at night is a precursor to myocardial infarction.
Second, the symptoms of angina pectoris are aggravated.
If the symptoms of angina pectoris are aggravated, or chest pain is more frequent, heavier, wider and longer than before, and the symptoms of chest pain cannot be effectively relieved after taking nitroglycerin under the tongue, we should also be alert to the emergence of "myocardial infarction".
Third, chest pain with no obvious cause.
Although you used to suffer from angina pectoris, you can find obvious inducing factors, such as fatigue and excitement, but now you have chest pain symptoms in a quiet state without obvious inducing factors, accompanied by symptoms such as sweating, vomiting and nausea, and you need to see a doctor in time.
Fourth, suddenly flustered and oppressed.
When you have chest tightness, fatigue, palpitation, palpitation, shortness of breath or aggravated symptoms, you need to see a doctor immediately. This is a common precursor of myocardial infarction in many patients and needs special attention.
Five, pain in other parts related to fatigue
Physical pain is related to fatigue and excitement, including epigastric pain, toothache, jaw pain, left shoulder and arm pain, back pain, etc., which should also be paid attention to.
Everyone knows the precursors of myocardial infarction, so we should make necessary preparations at ordinary times in order to win valuable treatment time for patients when they come on.
Question 2: What does myocardial infarction mean? Myocardial infarction refers to acute myocardial infarction.
Acute myocardial infarction is myocardial necrosis caused by acute and persistent ischemia and hypoxia of coronary artery. Clinically, there is severe and persistent retrosternal pain, which can not be completely relieved by rest and nitrate drugs, accompanied by increased serum myocardial enzyme activity and progressive ECG changes, which may be complicated with arrhythmia, shock or heart failure, which is often life-threatening. This disease is the most common in Europe and America. In the United States, about 6.5438+0.5 million people have myocardial infarction every year. In recent years, there is an obvious upward trend in China, with at least 500,000 new cases and at least 2 million patients.
Question 3: What does myocardial infarction mean? Myocardial infarction refers to acute ischemic heart disease characterized by severe chest pain, fever, white blood cell count, progressive electrocardiogram and dynamic changes of myocardial enzymes on the basis of coronary artery disease, which leads to sudden and complete occlusion of coronary artery, sharp reduction or interruption of coronary blood supply, myocardial ischemia, injury and necrosis. Arrhythmia, shock or heart failure may occur, which is a serious type of severe coronary heart disease. Most of its basic lesions are coronary atherosclerosis, and a few are other lesions such as acute coronary embolism.
Question 4: What is myocardial infarction? I feel that myocardial infarction is caused by cardiac ischemia. The main symptoms are chest pain, sometimes reflected in the back, pale face and a lot of cold sweat.
Question 5: The harm of myocardial infarction What is myocardial infarction? Myocardial infarction refers to myocardial infarction, which is caused by coronary atherosclerosis, thrombosis and coronary artery branch occlusion, so that some myocardium loses blood supply and dies. Most of them occur after middle age. At the time of onset, there are serious and persistent symptoms such as chest pain, palpitation, asthma, weak pulse and hypotension, which are similar to angina pectoris. Taking nitroglycerin is ineffective and will have serious consequences.
The most typical symptoms of myocardial infarction are chest pain, weakness, sweating, dizziness, vomiting, unstable heartbeat, and sometimes myocardial infarction can lead to coma. Chest pain is the most common symptom, and patients generally describe it as a feeling of backlog and tension. Sometimes the chin, neck, arms, back and abdomen also hurt, especially the left arm or neck. Chest pain caused by myocardial infarction is often longer than 30 minutes. About a quarter of myocardial infarction has no symptoms, especially in the elderly and diabetic patients. They often feel weak. About half of patients with myocardial infarction have premonitory symptoms such as angina pectoris before onset.