If the symptoms of chest tightness occur when the patient is lying down and get better when he sits up, the first thing to rule out is whether the patient is suffering from heart failure. Especially if the chest tightness is accompanied by shortness of breath, dyspnea and lower limb edema, it is highly considered to be caused by heart failure. It is recommended that patients undergo BNP and cardiac ultrasound examinations if necessary, which will help to further clarify whether the patient is suffering from heart failure. In addition, some patients may also be caused by psychosomatic factors, especially for the existence of anxiety disorders or vegetative nerve dysfunction, cardiac neurosis, may also appear this kind of uncomfortable symptoms, it is recommended that the patient can be appropriate to use some inhibition of sympathetic excitability of the drug, slow down the heart rate, for example, can be taken orally bisoprolol or bethanechol such as the drug. In addition, if necessary, you can also check the coronary artery CT, to clarify whether there is a serious narrowing of the coronary blood vessels.