What are the symptoms of myocardial infarction?
In recent years, myocardial infarction (myocardial infarction), as an acute and severe cardiovascular disease, has received widespread attention. As the pace of life accelerates and work pressure increases, the incidence of myocardial infarction increases year by year, and it shows a trend of getting younger. Understanding the symptoms of myocardial infarction is crucial for early detection and timely treatment. This article will combine the hot topics and hot content on the Internet in the past 10 days to provide you with a detailed analysis of the symptoms of myocardial infarction and its related data.
1. Common symptoms of myocardial infarction

Myocardial infarction is a disease caused by ischemic necrosis of myocardium due to coronary artery obstruction. Symptoms vary, but the following are the most common:
| Symptoms | Description | incidence |
|---|---|---|
| chest pain | Severe, squeezing pain, often located behind the sternum or in the precordium, and can radiate to the left shoulder, left arm, or mandible | About 80%-90% |
| difficulty breathing | Feeling short of breath or struggling to breathe, especially when active | About 50%-60% |
| Nausea, vomiting | Patients may experience gastrointestinal symptoms due to vagus nerve irritation | About 30%-40% |
| sweating | Sudden cold sweat and clammy skin | about 50% |
| dizziness or fainting | Insufficient blood supply to the brain due to reduced cardiac output | About 10%-20% |
2. Be wary of atypical symptoms
It is important to note that not all patients with myocardial infarction develop the classic symptoms of chest pain. Some patients, especially the elderly, diabetic patients, or women, may present with atypical symptoms and are easily overlooked or misdiagnosed.
| crowd | Atypical symptoms | Things to note |
|---|---|---|
| elderly | Fatigue, confusion, abdominal pain | Easily mistaken for aging or other diseases |
| diabetics | Asymptomatic or mild discomfort | Neuropathy may mask pain |
| women | Back pain, fatigue, indigestion | Symptoms are more subtle and easily overlooked |
3. Emergency treatment of myocardial infarction
Once a myocardial infarction is suspected, the following measures should be taken immediately:
1.Call emergency number immediately: Time is the heart muscle, time is life. The golden time for treatment of myocardial infarction is usually within 6 hours after the onset.
2.keep quiet: Let the patient lie flat or adopt a comfortable position, and reduce activities to reduce myocardial oxygen consumption.
3.Take emergency medicine: If the patient has nitroglycerin prescribed by a doctor, he or she can take it under the tongue, but do not take aspirin on your own.
4.Be prepared for CPR: If the patient loses consciousness and stops breathing, cardiopulmonary resuscitation (CPR) should be started immediately.
4. Preventive measures for myocardial infarction
The key to preventing myocardial infarction is to control risk factors:
| risk factors | Control method | target value |
|---|---|---|
| high blood pressure | Take medication regularly and eat a low-salt diet | Blood pressure <140/90mmHg |
| Hyperlipidemia | Statins, diet control | LDL-C<2.6mmol/L |
| diabetes | Blood glucose monitoring, drug treatment | Glycated hemoglobin <7% |
| smoking | quit smoking | Quit smoking completely |
| Obesity | exercise, diet control | BMI<25kg/m² |
5. Recent hot topics about myocardial infarction
1.Sudden deaths among young people occur frequently: Recently, many cases of young people dying suddenly due to myocardial infarction have attracted social attention, reminding people to pay attention to heart health even if they are young.
2.Application of artificial intelligence in diagnosis of myocardial infarction: Many hospitals have begun to try to use AI technology to assist electrocardiogram analysis to improve the accuracy of early diagnosis of myocardial infarction.
3.Popularization of remote ECG monitoring equipment: The ECG monitoring function of wearable devices has become a new trend in health management, helping to detect abnormalities such as arrhythmia in a timely manner.
4.Seasonal disease characteristics: Data show that the incidence of myocardial infarction in winter is 30% higher than in other seasons, which may be related to temperature changes and blood pressure fluctuations.
Conclusion
Myocardial infarction is a life-threatening emergency, and understanding its symptoms is crucial for timely treatment. Regardless of whether it is typical chest pain or atypical symptoms, once suspicious symptoms appear, you should seek medical treatment immediately. At the same time, the risk of myocardial infarction can be effectively reduced by controlling risk factors and maintaining a healthy lifestyle. Remember: prevention is better than cure, and a healthy lifestyle is the best "heart protector".
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