Discussion
hyperglycemia, infection, Skeletal muscle, depressed
HYPERGLYCEMIA, INFECTION, INSULIN RESISTANCE, DECUBITUS
Preoperative oral carbohydrate (POC) has been recognized as an important element of guidelines for ERAS, and received increasing attention from anesthesiologists [The published data [Bedside antrum ultrasonography is an accurate, quick and effective technology to evaluate the properties and volume of gastric contents [Anteroposterior (AP) and craniocaudal (CC) antral diameters in the right lateral decubitus (RLD) are measured to obtain the cross-sectional area of the antrum (CSA). Then the gastric volume can be calculated based on the formula of Perlas (2013) model [The results of GV exhibited no significant differences between two groups at the three time points: before oral administration (VPostoperative IR is a depressed state of glucose uptake and utilization by peripheral target organs and tissues, which result in abnormal metabolism of glucose, lipid and protein, and is associated with hyperglycemia reactions, infection and prolonged hospital stay [There are various mechanisms behind the alleviation of postoperative IR induced by POC. Shi et al. [The main components of EHR are maltodextrin, oligosaccharide malt and polyglucose. Maltodextrin [Skeletal muscle is one of the main target tissues of insulin. Insulin resistance disrupts both the amount and the timing of glucose into skeletal muscle [There are still limitations in the study. Firstly, a group that fasted before surgery, as a control to show the impact of preoperative fasting, was not set. Secondly, effects between glucose solution and enzyme-hydrolyzed rice flour solution were not compared. In addition, the similar research on other types of surgery needs to be further carried out.