95% of heart blood vessel blockage must be treated with surgical intervention. Surgical arterial bypass surgery can be chosen, but it is more damaging, and minimally invasive coronary stent implantation is usually recommended in clinical practice. 1. The blood vessels supplying the heart are called coronary arteries, which can be divided into left and right coronary arteries. Coronary artery disease can be diagnosed when the stenosis of the heart blood vessels is more than 50%, and the implantation of a stent is recommended when the stenosis of the heart blood vessels is more than 75%. 95% of the heart blood vessel blockage requires treatment, and stent implantation is recommended by the clinic at the present time. 2. 95% blockage of cardiac blood vessels far exceeds the compensatory range, and is prone to myocardial ischemia and hypoxia, leading to angina pectoris and myocardial infarction, the latter of which has a very high rate of death and disability, and needs to be solved by PCI (percutaneous coronary intervention). 3. Cardiac stenosis can lead to a series of long-term complications, such as arrhythmia, heart failure, cardiomyopathy, etc., which can no longer be treated by simple medication, and the implantation of a stent to open up occluded blood vessels can, to a certain extent, minimize the onset of appeal complications. Specific treatment should be in accordance with the doctor’s prescription.