【摘要】 肿瘤相关性肌少症是恶性肿瘤患者常见的并发症，其以骨骼肌含量进行性减少、肌力下降及躯体功能下降为核心特征，显著影响患者生活质量、抗肿瘤治疗效果及生存预后。中国临床肿瘤学会（CSCO）肿瘤营养治疗专家委员会以及CSCO肿瘤支持与康复治疗专家委员会，组织全国专家，根据我国肿瘤相关性肌少症患者的诊疗现状、国内外发表的循证医学证据，结合专家经验和意见，制定本共识，通过系统阐述肿瘤相关性肌少症的定义、流行病学特征、发病原因及机制、筛查与诊断方法、营养及多模式管理防治策略及未来研究方向，旨在为临床实践提供规范化、个体化的诊疗参考，推动肿瘤患者的全周期管理。更多还原

【Abstract】 Cancer-related sarcopenia is a common complication in patients with malignant tumors,characterized by progressive loss of skeletal muscle mass,reduced muscle strength,and decline in physical function.It significantly impacts patients’ quality of life,the efficacy of anti-tumor treatments,and overall survival prognosis.The Expert Committee on Cancer Nutrition Therapy of Chinese Society of Clinical Oncology(CSCO) and the Expert Committee on Supportive and Rehabilitative Care in Oncology of CSCO,organized a national panel of national experts to develop this consensus,based on the current status of diagnosis and treatment of cancer-related sarcopenia in China,evidence from domestic and international publications,as well as expert experience and opinions.This consensus systematically elaborates on the definition,epidemiological characteristics,etiology and pathogenesis,screening and diagnosis methods,nutrition and multimodal management,prevention strategies and future research directions related to cancer-related sarcopenia.The aim is to provide standardized and individualized diagnosis and treatment guidance for clinical practice and to promote comprehensive,full-cycle management of cancer patients.更多还原