The appropriate understanding of conversion to open surgery in laparoscopic colorectal surgery        ZHANG Zhong-tao, YANG Yun, FENG Zhe-wen. Department of General Surgery, Beijing Friendship Hospital, Capital Medical University, National Clinical Research Center for Digestive Diseases,Beijing 100050,China
Corresponding author: ZHANG Zhong-tao, E-mail：zhangzht@
ccmu.edu.cn
Abstract    Laparoscopic conversion to open surgery has become a topic that cannot be ignored when surgeons make surgical plans and communicate with patients and their family members. From the perspective of ensuring the safety and benefits of patients, appropriate and timely selection of converting laparoscopic surgery to open surgery can reduce the risk of potential clinical complications and adverse oncological outcomes. In laparoscopic colorectal surgery, when there are oncological factors such as late tumor stage and huge tumor that are difficult to be resected by laparoscopy; Objective factors such as anatomical variation, tumor location, obesity, and abdominal adhesion; Subjective factors such as insufficient skills of the operator and unclear anatomy; In case of uncontrollable bleeding, side injury, subcutaneous emphysema, carbon dioxide retention, gas embolism, and difficult reconstruction, the surgeon should immediately convert to open surgery. All the operations and applications of technology should first ensure patient safety and the interests of the patient as the center; if a patient's life safety is threatened, or performers think laparoscopic operation risk is greater than the open operation, resolute conversion to open surgery should be done.