Abstract: Objective: To evaluate the safety and feasibility of shortening preoperative fasting time in patients undergoing arthroplasty. Methods: A total of 107 patients who underwent arthroplasty from a hospital in Beijing were divided into control group (n=55) and experimental group (n=52) according to the time sequence. The control group was given guidance according to the traditional preoperative fasting method. The experimental group was fasted after 12:00 pm. on the 1st day before surgery, and 330 mL of Fructose drinks were orally administered 2 hours before the operation, and then abstained from drinking and eating. Objective measures (blood pressure, blood glucose, heart rate, exhaust time, urination time, etc) and subjective comfort (preoperative anxiety, thirst, hunger, nausea and vomiting) were recorded and compared between the two groups. And observe the occurrence of adverse reactions in patients. Results: There were no significant differences in postoperative blood pressure, heart rate, blood glucose, hunger, uresis duration, and nausea and vomiting between the two groups (P>0.05). The patients in the experimental group were better than the control group in terms of preoperative anxiety, postoperative thirst and exhaust time, and the difference was statistically significant (P<0.05). There were no serious adverse reactions occurred in either groups. Conclusion: It is safe and feasible to shorten the fasting time before arthroplasty, and it is helpful to reduce the symptoms of preoperative anxiety and thirst and shorten the postoperative exhaust time.

Key words: arthroplasty; preoperative; fasting water time