[Abstract]:Objective To evaluate the comfort of cesarean section and the effects of the postoperative blood sugar and the insulin resistance during the operation. Methods From March 2015 to July 2015 in the Genetal hospital of TianJin,40 patients who were going to get elective csection were selected and divided randomly into two groups: oral carbohydrate group(CHO group，n=20),oral placebo group (P group，n=20).Both groups used epidural anesthesia, and a routine preoperative fasting. 300mL carbohydrate drinks(it contains 14.1 grams of carbohydrates per 100ml of drink) was administrated orally 2 hours before anesthesia in oral carbohydrate group.Patients in oral placebo group were given an equal amount distilled waster instead of carbohydrate. The levels of blood glucose (BG)、 plasma insulin(INS)and glucagons were tested after 2 hours and after fetus delivery. According to levels of BG and INS, homeostasis model assessment (HOME)was applied to calculate the index of insulin resistance(HOMA-IR)and insulin sensistivty index(HOMA-ISI).After fetus delivery tested neonates blood glucose immediately. Meanwhile, compared the subjective comfort of the two groups patients.