Bypass surgery is minimally invasive if it does not involve extracorporeal circulation. However, some of them require extracorporeal circulation and are traditional surgical procedures. The clinic should choose the appropriate surgical procedure according to the condition. Bypass surgery refers to coronary artery bypass grafting, which is minimally invasive if performed with the heart beating. Minimally invasive surgery is suitable for the elderly, liver and kidney insufficiency, ascending aortic atherosclerosis and other high-risk groups of extracorporeal circulation because of the light damage, small wounds, and fast recovery. However, because minimally invasive bypass surgery is technically demanding and difficult, and cannot remove ventricular wall aneurysms at the same time, there are certain limitations, and it must be performed under the operation of professional and experienced doctors. Minimally invasive surgery is not recommended for diffuse coronary artery calcification. It is recommended to consult your physician for specific surgical methods and to take active treatment under the advice of your physician.