Perioperative drinking management to promote postoperative gastrointestinal function recovery in gynecological patients: a randomized controlled trial

INTERVENTION: Research Group 1:Preoperative carbohydrate load 200ml;Research Group 2:Preoperative carbohydrate load 200ml and postoperative early water intake;Control group:Regular preoperative prohibition of drinking for 8‐10 hours, and after the first exhaust after surgery, return to a fluid diet; CONDITION: postoperative gastrointestinal function recovery PRIMARY OUTCOME: the time to first flatus;the time to first feces;I‐FEED scores;Bristol III‐IV;the time to the first liquid diet; SECONDARY OUTCOME: VAS scores;inflammation;postoperative hospital stay; INCLUSION CRITERIA: Elective gynecological surgery under general anesthesia; ASA I‐III; The age is from18 to 70; No cognitive impairment in communication; Volunteer to participate in this study and sign informed consent form.