Coronary artery bypass grafting (CABG) is the most effective method to treat severe coronary artery disease, but the traditional surgical method requires extracorporeal circulation and median sternotomy, which is more damaging, in order to overcome its shortcomings gradually emerged minimally invasive bypass technology, and achieved the same efficacy as conventional coronary artery bypass grafting, the method is characterized by non-stop heartbeat and small incision, fast recovery and significant reduction of complications. There are two main methods of minimally invasive bypass grafting, one is non-stop bypass grafting with median open heart (OPCABG) and the other is small incision direct coronary artery anastomosis (MIDCABG). OPCABG, commonly known as nonstop cardiac bypass, is suitable for the treatment of multiple vascular lesions and significantly reduces surgical trauma and associated complications because it does not require the use of extracorporeal circulation, but still requires a median sternal incision. MIDCABG is truly minimally invasive in the narrow sense, not only does it not require extracorporeal circulation and is performed directly under the beating heart; it also no longer requires incision of the sternum, generally requiring only a very small incision between the ribs and almost no sternal complications, so it greatly reduces the trauma to the patient. However, this technique is currently limited to single-branch lesions (a few are applied to two-branch lesions); and this procedure is very difficult and requires high surgical skills, which our cardiac surgery department has now pioneered in the province. Minimally invasive bypass also has many limitations, firstly, the small incision is only suitable for a small number of patients with single-branch lesions; secondly, because the anastomosis is performed with the heart beating, the quality of the anastomosis may be inferior to that of the surgery under stoppage; in addition, the number of bypass branches is not large enough and incomplete. Since it is not suitable for all bypass patients, an experienced surgeon is needed to determine the surgical plan according to the specific condition. Reducing surgical trauma and improving efficacy are the goals of medicine. With the development of robotics and the invention and continuous improvement of related surgical instruments, minimally invasive coronary artery bypass grafting will develop toward smaller incisions and less trauma, eventually reducing surgical trauma to the limit and making coronary artery bypass grafting less traumatic, safer and easier. For more articles, please click: coronary artery bypass grafting website http://www.cabg120.com