Cardiac surgery is a high-risk surgery, in order to ensure the safety of patients, protect the legal rights of patients, ensure the smooth development of cardiac surgery, minimize medical errors and accidents, and improve medical quality, this plan is formulated. 1, the hospital set up a cardiac surgery leading group headed by President Li Dong, the overall leadership of the deployment of cardiac surgery work. 2, the department set up a cardiac surgery technology research group headed by Chen Minghui, director of the department, to operate on patients from surgical indications, preoperative preparation, surgical process to postoperative monitoring comprehensive management, to prevent errors or omissions. 3, the Department of thoracic surgery has established a comprehensive system of rules and regulations, all medical staff seriously study and resolutely implement: (1) strictly implement the first physician responsible system. (2) Strictly in accordance with the requirements of the “medical record writing standards” to write medical records. (3) Strict preoperative discussion of cardiac surgery patients, strict control of surgical indications and contraindications; (4) Preoperative confirmation of the integrity of surgical instruments and resuscitation equipment, in the best condition for use. (5) Communicate with patients and families about their condition, improve patients’ confidence in overcoming the disease, and let families understand the basic conditions of surgery and be able to understand the risks of surgery. (6) The surgical procedure is carried out in strict accordance with surgical specifications to ensure accurate surgical operation. Promptly consult and report any abnormalities during surgery. (7) Closely monitor the changes of the vital signs and the changes of the examination indexes after the operation to detect problems and deal with them in a timely manner. If necessary, ask the relevant departments to consult and give assistance.