Practice guidelines for whole-course perioperative nutritional management in adults (2026 edition)

The incidence of perioperative malnutrition in surgical patients is relatively high. Surgical trauma can further aggravate the malnutrition status, which is one of the key factors that increases postoperative complications and affects postoperative recovery. Developed by multidisciplinary domestic experts and scholars organized by the Chinese Society of Parenteral and Enteral Nutrition, "practice guidelines for the whole-course perioperative nutritional management in adults(2026 Edition)"complies with relevant domestic and international codes and adheres to the principles of scientization, standardization, transparency and institutionalization. This guideline is compiled on the basis of the nutritional and metabolic characteristics of surgical patients across preoperative, postoperative and post-discharge stages, as well as the core methodologies and standard procedures for formulating clinical diagnosis and treatment guidelines. It summarizes 18 clinical questions and 39 recommendations. The guideline intends to provide a reference for domestic surgeons to conduct perioperative medical nutritional therapy and benefit all surgical patients in need of nutritional intervention. It will be dynamically revised according to updated domestic and international evidence and research progress, so as to continuously promote the standardized application of perioperative medical nutritional therapy.

外科患者围手术期营养不良发生率较高，手术创伤可进一步加重营养不良状态，是增加术后并发症和影响术后康复的关键因素之一。中华医学会肠外肠内营养学分会组织国内多学科专家学者，遵循国内外相关规范，本着科学化、规范化、透明化和制度化的原则，基于术前、术后和出院后的围手术期不同阶段外科患者的营养代谢特点和临床诊疗指南制订的核心方法与标准流程编撰《成人围手术期全程营养管理应用指南（2026版）》。本指南归纳了18个临床问题，梳理了39条推荐意见，旨在为国内外科医师开展围手术期医学营养治疗提供参考，服务于需要营养治疗的各类外科患者，并将根据国内外相关证据和研究进展对指南进行动态修订，持续推动围手术期医学营养治疗的规范应用。.