Chen Guangrui, Department of Traditional Chinese Medicine and Cardiology, Taihe County Hospital of Traditional Chinese Medicine: Severely narrowed coronary vessels generally have the following consequences: 1. angina attack, limiting the amount of activity and affecting the quality of life; 2. acute myocardial infarction, a more dangerous situation; 3. ischemic cardiomyopathy forms after a long time, with an enlarged heart and difficulty breathing or worse after activity. If the economic condition is still possible, hoping to achieve a higher quality of life, it is recommended that the blood vessel be put into a stent, but of course there are certain risks, as flying is not absolutely safe. If the operation is successful, the condition of myocardial ischemia will be improved. Of course, the disease is not cured after the stent is placed, the treatment of coronary heart disease still has a long way to go: long-term medication, diet control, control of underlying diseases, healthy lifestyle, etc.