Establishment, Verification and Clinical Application of Chinese Version of Surgical Risk Assessment System

The research process is as follows: 1. Determine the collection index and the complications to be evaluated, and retrospectively collect the preoperative clinical data (including preoperative medical records, examination and examination results) of patients with postoperative complications of gastric and colorectal cancer in our hospital in the past ten years. Preliminary construction of surgical risk assessment system (gastrointestinal surgery) 2. Retrospective or prospective collection of gastric cancer and colorectal surgery cases (not included in the system) 3. The occurrence of postoperative complications was observed until 1 month after discharge. Compare the evaluation results of the system with the actual situation and feedback to further improve the system. 4. The same batch of patient data can be input into NSQIP to re-evaluate and predict the occurrence of patient complications, and then compare the results of the two systems. 5. The incidence of postoperative complications (number of cases and accuracy) of the two groups were counted respectively, and the accuracy and practicability of the evaluation of the two systems were compared to further improve the system.