Coronary heart disease, or coronary heart disease for short, is a disease caused by the buildup of cholesterol-based lipids under the inner lining of the coronary arteries, which leads to thickening of the walls of the coronary arteries, narrowing of the lumens, slowing of the blood flow, and insufficient blood supply to the heart muscle. The areas where lipids accumulate under the intima are called plaques or lesions. Most patients with coronary artery disease will have chest pain in the early stage, however, chest pain symptoms are not fully equivalent to angina pectoris, the characteristics of angina pectoris are as follows: 1, pain site: mainly in the upper part of the body of the sternum or the middle part of the sternum can be followed by waves of precordial area, the size of the range of the hand, or even across the forehead, the boundaries of which are not clear. It often radiates to the left shoulder, the inner side of the left arm up to the ring finger and little finger, or to the neck, pharynx or jaw. 2, the nature of the pain: chest pain is often pressure, tightness or tightness, there can also be a burning sensation, the onset of the patient is often involuntarily stop the original activity, until the symptoms are relieved. 3, pain triggers: often triggered by physical activity or emotional excitement, satiety, cold, smoking, tachycardia, shock, etc. can also be triggered. 4.Pain duration: the pain gradually worsens after the appearance of pain, and then gradually disappears within 3-5 minutes, usually relieved after stopping the original activity that induced the symptoms. 5, sublingual nitroglycerin can be relieved within a few minutes. In angina attacks such as electrocardiography often have abnormal changes, but most patients in chest pain attacks can not be timely electrocardiography. Therefore, the reliability of angina pectoris should be further evaluated with the help of ambulatory electrocardiography and/or exercise testing. All of the above are non-invasive tests, the shortcoming of which is that the reliability of the diagnosis is poor. The current “gold standard” for the diagnosis of coronary artery disease is selective coronary angiography. Selective coronary angiography, or coronary angiography for short, can clearly show the location of lesions and the severity of stenosis in the coronary arteries, and based on the results of the angiogram, it can help to formulate the next step in the treatment plan, such as deciding what kind of treatment plan to take medication, intervention, or surgery. This makes it very important for your doctor to recommend that you have a coronary angiogram. In the case of plaque in the coronary arteries, we can intervene to remove the narrowing of the diseased area and restore blood flow. One of these interventions is percutaneous transluminal coronary angioplasty, or PTCA, which, like coronary angiography, establishes arterial access by puncturing the femoral artery or radial artery and placing an arterial sheath. A guide catheter is placed into the opening of the diseased coronary artery, and a metal wire is inserted into the catheter across the lesion, and then a catheter with a balloon at the end is sent along the wire to the lesion so that the balloon covers the lesion, and the balloon covers the lesion. A catheter with a balloon at the end is then passed along the guidewire to the lesion so that the balloon covers the diseased segment of the blood vessel. The balloon is then inflated, squeezing the lesion against the vessel wall, thus enlarging the lumen diameter of the lesion, and a stent can be placed to improve blood flow to the diseased vessel, if necessary. If the lesion of the coronary artery is more diffuse, or the lesion of the coronary artery intervention of the risk is large, the benefit is small, that is to say, should not be interventional therapy or the expected postoperative effect of the case can be accepted surgical treatment (such as coronary artery bypass grafting, CABG), although compared with the interventional therapy, surgical treatment of the trauma of the larger, the patient suffers from the pain of the patient is more, however, CABG is still an important means of treatment of coronary artery disease. Although it is more invasive and painful than surgical treatment, CABG is still an important treatment for coronary artery disease. Regardless of the treatment you take, medication is fundamental. The significance of drug therapy lies in two aspects: one: how to make the existing coronary artery disease will not aggravate, such as strict control of your risk factors (hypertension, diabetes mellitus, hyperlipidemia, etc. drug treatment); two: how not to the existing coronary artery disease and the adverse consequences of coronary artery disease that is the secondary prevention of coronary artery disease, such as the occurrence of acute myocardial infarction, cardiac insufficiency, sudden death and so on. At present, there have been many advances in the field of coronary heart disease treatment, there is enough evidence on the treatment of coronary heart disease medication to make an objective evaluation, as long as you can reasonably use drug therapy, I believe you will be lifelong benefit.