Retired master Zhang recently morning exercise, often feel a kind of unexplainable chest discomfort, rest for a while to return to normal, but also did not take it seriously, one day ran into the old friend Zhao master, a question only to know that Zhao master last month due to acute myocardial infarction hospitalized, almost with the old guys “goodbye”, chat, master Zhang also put their own recent forging. The chest discomfort felt to tell the old Zhao, Zhao listened to advise Master Zhang to go to the hospital to find a specialist to take a look, because he had a similar symptom before myocardial infarction, the doctor said it was called “angina”, Master Zhang thought in his heart, I just a little chest discomfort, but also tolerable, rest on it, and there is no pain, let alone what “angina”. The first time I saw it, I was in the middle of a fight. But a thought of the old Zhao’s situation, can not help but be a little afraid, take the time to go to the hospital to find a doctor to see, made a copy of the electrocardiogram, did not find any big problem, but the doctor still recommended that Master Zhang be hospitalized for a good examination and treatment, Master Zhang in accordance with the advice of the doctor was hospitalized, and made a “coronary angiography” examination, not made do not know, a made The doctor diagnosed “coronary angina” and gave “stenting” and other positive and effective The doctor diagnosed “coronary angina” and gave positive and effective treatment such as “stenting”, and Master Zhang’s disease was soon relieved. So, why did the doctor diagnose angina when Master Zhang did not have angina of the heart? In fact, medical angina is a manifestation of myocardial ischemia, the most common type of coronary heart disease, and it is not what many people think of as “angina of the heart” – a site-limited, unbearable colic – but rather an often less descriptive anterior chest discomfort that lasts for several minutes. The discomfort is often less easily described as an uncomfortable sensation in the anterior chest lasting several minutes. Due to different cultural and social backgrounds, patients’ descriptions of angina vary widely, with typical symptoms ranging from tightness and pressure-like sensations, often accompanied by anxiety or a sense of near death, to burning or dull pain, to chest tightness and tightness, to generalized chest discomfort. However, the common feature is that each attack usually lasts no more than 3-5 minutes, rarely more than 15 minutes, and is rapidly relieved by rest or nitroglycerin. As the weather gets colder, the number of attacks of coronary angina and myocardial infarction gradually increases. Experts suggest that patients with these conditions should pay attention to keeping warm, avoid emotional excitement and exertion, and go to a regular hospital in a timely manner when their condition changes, so as not to delay their condition and cause adverse consequences.