Abstract: Objective: To investigate the application effect of an intelligent early warning system in patients with Severe Acute Pancreatitis (SAP) complicated by intra-abdominal hypertension, and to provide a reference for the precise management of enteral nutrition in such patients. Methods: Sixty patients with SAP admitted to the general surgery ICU of a tertiary grade A hospital in Nanjing from July 2024 to April 2025 were selected by convenience sampling and randomly divided into a control group and an observation group using a randomized block design according to the month of admission, with 30 cases in each group. The control group received traditional manual intra-abdominal pressure monitoring, while the observation group received enteral nutrition guided by a dynamic intra-abdominal pressure intelligent early warning system. The feeding conditions, nutritional indicators and inflammatory indicators were compared between the two groups. Results: After intervention, the time to reach feeding targets [(5.67±1.27) days vs. (7.87±2.96) days], the feeding achievement rate on day 7 (90.00% vs. 53.33%), the feeding interruption rate (30.00% vs. 60.00%), and the incidence of feeding intolerance (23.33% vs. 53.33%) in the observation group were better than those in the control group (P<0.05). On day 7 after intervention, the total protein level was higher and the white blood cell count was lower in the observation group than those in the control group (P<0.05). Conclusion: The intelligent early warning system can improve the nutritional status and immune function of SAP patients with intra-abdominal hypertension, reduce the incidence of feeding intolerance, and improve the feeding effect.

Key words: Severe Acute Pancreatitis; intra-abdominal pressure; intelligent early warning system; enteral nutrition; feeding intolerance; risk warning