Acute myocardial infarction (ami) is myocardial necrosis caused by acute and persistent ischemic hypoxia in coronary arteries.According to BORSAM Biomedical, Clinical go up to have acuteness and abiding more the ache after sternum, rest and nitric acid ester kind medicine cannot alleviate completely, companion has activity of serum cardiac muscle enzymatic heighten and carry forward change of electrocardiogram, can concomitant heart rhythm is wrong, shock or heart failure, often can endanger life. So what are the symptoms of myocardial infarction?





　　Symptoms of myocardial infarction

　　1. Sudden onset of severe and persistent retrosternal or precardia squeeze pain

　　2. A few patients had no pain

　　3. Some patients had pain in the upper abdomen

　　4. Mental retardation

　　5. Systemic symptoms





　　6. Gastrointestinal symptoms

　　7. Arrhythmias

　　8. Heart failure

　　9. Low blood pressure, shock