Clinically, the tightness in the throat can be caused by other factors besides myocardial ischemic disease. For example, patients with chronic pharyngitis may experience tightness in the throat; patients in a state of tension and anxiety may experience tightness in the throat. Eating spicy and irritating food in the course of daily life can cause congestion and edema in the mucous membrane of the throat, which can also lead to tightness in the throat. In order to diagnose whether the tightness of throat is caused by myocardial ischemia, we should analyze and judge the patient’s clinical symptoms, ECG, myocardial enzyme profile, cardiac ultrasound, coronary angiography and other related tests.