Nutrition support in surgical patients on continuous renal replacement therapy        ZHU Ran，MA Xiao-chun. Department of Critical Care Medicine, the First Affiliated Hospital of China Medical University, Shenyang 110001, China
Corresponding author: MA Xiao-chun, E-mail：xcma2972@sina.com
Abstract    Acute kidney injury（AKI） which often occurrs in perioperative surgical patients may lead to death and result in therapy dilema. Patients with AKI have always protein-energy malnutrition and need appropriate nutrition support. Continuous renal replacement therapy (CRRT) makes it possible to bring nutrients and fluid to patients but also affects the metabolism of AKI patients. Nitrogen intake should be enough to get positive nitrogen balance and some micronutrients and agents, such as l-carnitine, glutamine, intralipid and so on, are also indispensible. Oral or enteral nutrition is the first choice. Parenteral nutrition is always necessary to fullfil the aim of nutrition.