Value Analysis Of Preoperative NRS2002 And PNI Nutritional Screening Methods In Predicting Postoperative Complications Of Gastrointestinal Tumors

Objective: 1.Describe the preoperative nutritional status of patients with digestive tract tumors,analyze the influencing factors of malnutrition,and provide evidence for preoperative nutritional intervention.2.To compare the differences in preoperative nutritional indicators,immune indicators,and prognosis between patients with malnutrition and those with good nutrition in digestive tract tumors,and to explore the impact of malnutrition on clinical outcomes after surgery for digestive tract tumors.3.To compare the predictive value of NRS2002 and PNI nutritional screening methods for postoperative complications of different gastrointestinal tumors,and to provide evidence for selecting appropriate nutritional evaluation methods for different tumors in clinical practice.Method: Select new cases of digestive tract tumors who were treated and operated in Anhui Provincial Cancer Hospital from February 2021 to May 2022,and use NRS2002 and PNI nutritional screening methods to conduct preoperative nutritional screening,analyze the preoperative nutritional status of patients with digestive tract tumors and the relationship between postoperative clinical indicators and clinical outcomes,and analyze the independent influencing factors of malnutrition by binary logistic regression.Kappa tested the consistency of the two nutritional screening methods,and compared the predictive value of the two methods for postoperative complications by the area under the working characteristic(ROC)curve(AUC).Result :(1)According to the NRS2002 scoring system,25.1% of patients with digestive tract tumors had nutritional risk before operation,according to the preoperative PNI score system,nutritional screening was carried out,and 21.4% of patients were at risk of malnutrition before operation.(2)The risk of malnutrition before nutrition screening in NRS2002 was related to age,combined basic disease,TNM stage,degree of differentiation and postoperative complications(P;The nutritional risk before PNI nutritional screening was related to gender,age,TNM stage,differentiation degree and postoperative complications(P<0.05),The results of binary logistic regression analysis showed that gender,age ≥ 65 years old,TNM stage and differentiation degree were independent influencing factors.(3)The area under the ROC curve(AUC)shows that NRS2002 has a high AUC value in the prediction of postoperative complications of gastric cancer and colorectal cancer,and PNI has a high AUC value in the prediction of postoperative complications of liver cancer and pancreatic cancer,while the two nutrition scoring systems have low predictive value in the prediction of postoperative complications of esophageal cancer.Conclusion : The proportion of preoperative malnutrition in patients with gastrointestinal tumors is high and has a certain degree of impact on prognosis.In predicting postoperative complications of gastric and colorectal cancer,the sensitivity and specificity of NRS2002 score is higher than PNI;The sensitivity and specificity of PNI was higher than NRS2002 score in predicting postoperative complications of liver cancer and pancreatic cancer;The predictive value of these two nutritional scoring systems in postoperative complications of esophageal cancer surgery is not high.