
How to detect early myocardial infarction
I've had some heart problems before and was taking medication previously. Recently, I've been experiencing intermittent chest pain, and I'm worried it might be a heart attack. I'd like to know what's the best way to detect a heart attack?

Methods for detecting early myocardial infarction:
1. Clinical symptoms: The main symptoms of early myocardial infarction include sudden chest pain, chest tightness, palpitations, and sweating. These symptoms may be accompanied by decreased blood pressure, dizziness, weakness, nausea, and other signs. The appearance of these symptoms should raise concern, especially when symptoms persist or worsen.
2. Electrocardiogram (ECG): After a myocardial infarction occurs, the ECG may show abnormal changes in the ST-T segments, such as ST-segment elevation or depression, and T-wave inversion.
3. Cardiac enzyme tests: Elevated levels of cardiac enzymes, particularly troponin, which has high myocardial specificity and sensitivity, are an important basis for diagnosing myocardial infarction.
4. Imaging examinations: Such as cardiac ultrasound and cardiac MRI, which can assess myocardial motion and detect abnormal findings such as reduced or absent myocardial activity, helping to further confirm the diagnosis of myocardial infarction.
Immediate medical attention should be sought whenever symptoms suggestive of myocardial infarction occur.