Patients who are suitable for heart bypass surgery Heart bypass surgery involves creating a channel between the proximal and distal ends of a narrowed coronary artery, allowing blood to bypass the narrow median and reach the distal end. Heart bypass surgery, commonly known as coronary artery bypass surgery, is internationally recognized as the most effective treatment for coronary heart disease. There are many risks associated with heart bypass surgery, including the patient’s age and physical condition, as well as the choice of surgical method. In general, the saphenous vein bypass can be used alone for people over 80 years old, while arterial bypass can be considered for people under 55 years old and an internal mammary artery plus the saphenous vein can be used for other ages. So are there risks associated with heart bypass surgery? The risk and benefit of heart bypass surgery depends on the patient’s specific situation, only if the benefit far outweighs the risk, then we take the risk, if the gain may not outweigh the loss, then we don’t do it. So which patients are suitable for heart bypass surgery? Indications ①: coronary angiography, stenosis of the main branch of the coronary artery more than 50% or lumen stenosis of the branch more than 75% of the diameter, the distal segment of the stenotic artery is patent and its diameter is above 1.5 mm. Indication ②: angina pectoris complicated by left ventricular wall tumor, or with ventricular septal defect or valve damage. Indication ③: After myocardial infarction, coronary angiography shows significant stenosis of the main branch of the coronary artery. Indication ④: Those who have severe angina pectoris and are incapacitated, and whose medical system treatment is ineffective. Patients with coronary artery disease must communicate with their doctors. The treating doctors are the most knowledgeable and it is only reasonable to listen to their opinions.