Weekly First-aid Topic: Take chest tightness and chest pain seriously
From:Beijing Municipal Health Commission

We have talked about a case of an old person having chest pain for nearly ten hours. What is chest pain that threatens people’s life?
Fatal chest pain includes acute myocardial infarction and unstable angina, aortic dissection, and tension pneumothorax. Acute myocardial infarction and unstable angina are difficult to distinguish by clinical symptoms alone. They must be distinguished by electrocardiogram and myocardial enzyme examination. If the patient feels compression, contraction, or the feeling of burning, knife cutting or heaviness in chest pain, the pain usually located behind the sternum, and can be radiated to the neck, lower jaw, upper abdomen, shoulder, back or left forearm. Some patients show difficulty in breathing, chest tightness, shortness of breath, etc.  Symptoms such as restlessness, cold sweat, nausea and vomiting, palpitation fear, the feeling of dying or blacking out, syncope, etc., are typical hints of myocardial infarction.: The pain of aortic dissection is characterized by sudden pain, pain in the front and back, transferring pain, the most serious pain in the onset, tearing pain, and a marked increase in blood pressure in the onset. Tension pneumothorax refers to a progressive exacerbation of dyspnea after trauma.
If you have symptoms such as chest tightness or chest pain, accompanied by shortness of breath, dizziness, sweating, etc., you must be alert. If the symptoms are not relieved in 15 minutes, you should call 120. Please remember two "120" principles in acute myocardial infarction. The two “120” means that calling 120 for immediate rescue and 120 minutes, the best time for treatment.