I. What is single-port thoracoscopic surgery? Thoracoscopic surgery, which I believe no one is unfamiliar with, is a procedure that usually uses one main operation hole, one observation hole or one or more secondary operation holes to complete open-heart surgery with the help of special thoracoscopic instruments instead of traditional surgical instruments. It has been widely used in clinical practice and is the symbol of minimally invasive thoracic surgery. As the name implies, single-port thoracoscopic surgery is a thoracoscopic surgery with only one operation hole, which concentrates the previous main operation hole, secondary operation hole and observation hole together to achieve a more minimally invasive and aesthetic operation. Second, the development of single-hole thoracoscopic surgery single-hole thoracoscopic operating environment for linear vision (inline vision), the thoracoscope vertically through the sagittal plane, so that the surgical instruments point directly to the target tissue, the lesion in the same coordinates of the plane of shadowing, representing an infinite number of points. The infinite extension of the diagonal is the advantage of single-port VATS in the shadowing plane, and this sagittal approach ensures the depth of view during surgery in a two-dimensional spatial display. single-port thoracoscopic technique was first reported by Migliore in 2003 and applied to the diagnosis and treatment of uncomplicated pleural-related diseases (e.g. benign and malignant nodules, pleural effusion and abscess thorax). in 2004 Rocco et al. first reported In June 2011, Gonzalez in Spain reported the first uniportal VATS lobectomy and systemic lymph node dissection, followed by the more complex and difficult uniportal VATS radical lung cancer surgery, and in March 2013, the first Asian uniportal VATS Forum was held, which started a new wave of uniportal thoracoscopic surgery in the Asian region. . Although it is an extension of traditional VATS, the operation concept returns to open surgery, and the process of handling the target area is almost the same as that of open chest surgery. The postoperative pain and chest wall sensory abnormalities are much less than the traditional two-hole or three-hole method, because the main cause of postoperative wound pain in traditional cVATS originates from the lower observation hole and the posterior auxiliary operation hole.