The threshold setting of gastric residual volume of ICU patients :a literature review / 肠外与肠内营养

Clinicians monitor the gastric residual volume(GRV) of critical ill patients to minimize or prevent side effect of EN.Nevertheless,recommendations about the threshold GRV in critically ill patients treated with EN are not uniform.Many recent clinical studies had demonstrated that increasing the limit of GRV was associated with the increase in the diet volume ratio of ICU patients receiving EN,and it was not associated with adverse effects in gastrointestinal complications.This review summarizes the influence factors of GRV monitoring to evaluate the feasibility and necessity of increasing the threshold of GRV.