What is the difference between myocardial infarction and angina pectoris?

Myocardial infarction is different from angina pectoris. First, angina pectoris pain is strangulated pain, pain duration is relatively short, generally no more than 10 minutes. Myocardial infarction performance is precordial pain, often more severe pain, duration is longer. In addition, angina pectoris is not accompanied by other symptoms, while myocardial infarction may be accompanied by arrhythmia, shock and other symptoms.