To explore the current status of nutritional risk, nutritional support, and nutritional management in patients with gastrointestinal tumors in the perioperative period, to provide guidance for improving the quality of nutritional intervention.

Patients with gastrointestinal tumors admitted to the Department of Gastroenterology, the First Medical Center of PLA General Hospital from April 2021 to April 2022 were selected as the research objects. The nutritional risk screening form (NRS2002) was used and clinical information were collected to analyzed their nutritional risk and nutritional support.

A total of 684 subjects were included in this study, with an average age of (58.65±12.25) years old, 60.09% of them had normal body mass index, and 39.91% had abnormal body weight. In terms of body mass index, the top three clinical diagnoses of malnutrition risk were esophageal cancer (13.46%), gastric cancer (17.09%), and bowel cancer (18.06%). The average score of NRS2002 was (4.26±1.84), and 35.67% of the patients had NRS2002 score ≥3, mainly colorectal cancer, gastric cancer and esophageal cancer. A total of 266 patients (38.89%) received perioperative nutritional support, and 79.70% of them received parenteral nutrition. 71.72% of patients with NRS2002 score ≥3 received nutritional support, and 20.68% of patients with NRS2002 score < 3 received nutritional support. Patients with esophageal cancer (32.05%), gastric cancer (56.96%), bowel cancer (56.25%) and liver cancer (29.59%) were more likely to receive nutritional support. The level of nutritional indexes after nutritional support was higher than that before nutritional support (P< 0.05).

The malnourished risk of patients with gastrointestinal cancer in perioperative period is high. Nutritional support has a positive effect on improving the health status of patients. At present, although some patients with gastrointestinal cancer receive nutritional support during perioperative period, the overall nutritional support still needs to be improved.