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This randomized controlled trial assesses whether microenvironment theory-based nursing improves prognosis compared with routine care alone. From January 2022 to December 2024, 106 SAP patients were assigned to control or observation groups. Results show faster postoperative recovery, reduced depression and anxiety, lower disease severity, and fewer complications with the microenvironment nursing 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|\n\nSubmit a Manuscript: [https://www.f6publishing.com](https://www.f6publishing.com) World J Gastrointest Surg 2025 December 27; 17(12): 113611  \nDOI: 10.4240/wjgs.v17.i12.113611 ISSN 1948-9366 (online)  \nORIGINAL ARTICLE  \nRandomized Controlled Trial  \nEffect of microenvironment theory-based nursing on prognosis in intensive care unit patients with postoperative severe acute pancreatitis  \nHuan Liu, Min-Jian Gu, Kua-Xin Xu, Xiao-Hui Yang  \nSpecialty type: Gastroenterology and hepatology  \nProvenance and peer review:  \nUnsolicited article; Externally peer reviewed.  \nPeer-review model: Single blind  \nPeer-review report’s classification Scientific Quality: Grade B  \nNovelty: Grade B  \nCreativity or Innovation: Grade C  \nScientific Significance: Grade C  \nP-Reviewer: McCormack V, PhD, France  \nReceived: September 9, 2025  \nRevised: October 11, 2025  \nAccepted: November 11, 2025  \nPublished online: December 27, 2025  \nProcessing time: 106 Days and 23.1 Hours  \nHuan Liu, Department of Nursing, The Fourth Affiliated Hospital of Soochow University (Suzhou Dushu Lake Hospital), Suzhou 215131, Jiangsu Province, China  \nMin-Jian Gu, Kua-Xin Xu, Xiao-Hui Yang, Department of Critical Care Medicine, The Fourth Affiliated Hospital of Soochow University (Suzhou Dushu Lake Hospital), Suzhou 215131, Jiangsu Province, China  \nCorresponding author: Xiao-Hui Yang, Associate Chief Nurse, Department of Critical Care Medicine, The Fourth Affiliated Hospital of Soochow University (Suzhou Dushu Lake Hospital), No. 9 Chongwen Road, Industrial Park, Suzhou 215131, Jiangsu Province, China.  \n[yxhxiaohui135@163.com](yxhxiaohui135@163.com)  \nAbstract  \nBACKGROUND  \nPatients with postoperative severe acute pancreatitis (SAP) in the intensive care unit (ICU) face complex challenges arising from physiological and microenvironmental imbalances, psychological stress, and the interaction of multiple environmental factors. Traditional nursing models inadequately address this integrated microenvironment, highlighting the need for microenvironment theory-based nursing interventions to optimize outcomes.  \nAIM  \nTo evaluate the impact of a microenvironment theory-based nursing intervention model on the prognosis of patients with postoperative SAP in the ICU.  \nMETHODS  \nBetween January 2022 and December 2024, 106 patients with SAP who were admitted to ICU of the Fourth Affiliated Hospital of Soochow University (Suzhou Dushu Lake Hospital) were randomly assigned to two groups: (1) A control group (n = 53, routine care); and (2) An observation group (n = 53, routine care plus microenvironment theory-based nursing). Postoperative recovery, psychological distress, disease severity, and complication rates were compared between groups.  \nRESULTS  \nThe observation group had significantly shorter postoperative flatus, defecation, and hospital stay compared with the control group (P \u003C 0.05) . The Hamilton  \n WJGS  [https://www.wjgnet.com](https://www.wjgnet.com) 1 December 27, 2025  Volume 17  Issue 12   \nLiu H et al. Microenvironment nursing improves postoperative SAP prognosis  \nDepression Rating Scale (17-item) and Hamilton Anxiety Rating Scale (14-item) scores in the observation group were significantly lower than those in the control group (P \u003C 0.05) . The observation group had a lower Acute Physiology and Chronic Health Evaluation II score (P \u003C 0.05) compared with the control group. The postoperative complication rates were 5.66%(3/53) and 18.87%(10/53) in the observation group and control group, respectively (P \u003C 0.05) .  \nCONCLUSION  \nIn patients with SAP, the microenvironment theory-based nursing intervention model facilitated postoperative recovery, alleviated depression and anxiety, reduced disease severity, and decreased postoperative complications.  \nKey Words: Severe acute pancreatitis; Intensive care unit; Microenvironment theory; Nursing intervention; Prognosis  \n©","cbCaifLmKVu36m6s","https://ap.wps.com/l/cbCaifLmKVu36m6s","pdf",422158,"English","# Abstract\n## Background\n## Aim\n## Methods\n## Results\n## Conclusion\n## Key Words\n# Introduction","[{\"question\":\"What patient population was studied in this randomized trial?\",\"answer\":\"The study enrolled patients with postoperative severe acute pancreatitis (SAP) admitted to the intensive care unit (ICU).\"},{\"question\":\"What intervention was compared against routine care?\",\"answer\":\"The observation group received routine care plus microenvironment theory-based nursing, while the control group received routine care only.\"},{\"question\":\"Which outcomes improved in the microenvironment theory-based nursing group?\",\"answer\":\"Compared with routine care, the intervention group showed shorter postoperative recovery times, lower depression and anxiety scores, reduced disease severity, and lower postoperative complication rates.\"}]","Effect of microenvironment theory-based nursing on prognosis in intensive care unit patients with postoperative severe acute pancreatitis - Randomized Controlled Trial | PDF",1790566091]