As the temperature difference between morning and evening increases, Beijing is approaching its late autumn. There is a disease that is related to coldness, and 40% of the deaths of the nation each year are caused by it. In other words, two of every five people die every year are resulted from this desease, which is called myocardial infarction.

If you suddenly get chest tightness, chest pain or shortness of breath, you must not hesitate to quickly call 120 for help and go to the hospital as soon as possible, because "time is the heart muscle and time is life". Angina pectoris is a typical symptom of myocardial infarction. However, in fact, the painful part of acute myocardial infarction is mainly in the posterior sternum and anterior region. About 30% of patients with chest pain can spread under the xiphoid or to the upper abdomen, which can be easily misdiagnosed as stomach pain. In addition, some patients with acute myocardial infarction have no symptoms of chest pain, which means they are sufferring from painless myocardial infarction. In fact, many patients have aura symptoms before the heart attack, such as chest tightness or shortness of breath. If you pay attention to those symptoms, you can find electrophysiological changes early in an electrocardiogram.

Once the heart attack occurs, there is not much time left for life. In the treatment of myocardial infarction, it is necessary to unchoke the blocked blood vessels as soon as possible to reduce the time of cardiac ischemia and maximize the recovery of the myocardium. If a cardiac arrest occurs, the surrounding person should immediately perform cardiopulmonary resuscitation until the arrival of 120 ambulances. Then the patient should continue to be treated by medical staff.