Department of Nephrology Xiamen Branch Zhongshan Hospital Fudan University Xiamen 361015 Fujian Province China;
Department of Medical Oncology Zhongshan Hospital Fudan University Shanghai 200032 China;
Department of Nephrology Zhongshan Hospital Fudan University Shanghai 200032 China;
Department of Pancreatic Surgery Pancreatic Disease Institute Huashan Hospital Shanghai Medical College Fudan University Shanghai 200040 China;
Department of Nephrology Zhongshan Hospital Fudan University Shanghai 200032 China;
Gastrointestinal tumor; Acute kidney injury; Risk factors; Treatment; Preventive measures; Enhanced recovery pathways;