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Objective: To compare effects of desflurane and sevoflurane on cognitive function in elderly patients undergoing general anesthesia. Methods Eighty elderly patients undergoing general anesthesia under open surgery were enrolled in this study, ASA I ~ II, were divided into group A (desflurane group) and group B (sevoflurane group) randomly. Intravenous drugs included midazolam 0.03 mg / kg, sufentanil 0.5ug / kg, propofol 1-2mg / kg, vecuronium 0.1 mg / kg. All patients were treated with desflurane or sevoflurane to maintain anesthesia, with depth 1.2 ~ 1.4MAC. The mini-mental state examination (MMSE) scores were recorded before operation and 1h, 6h, 12h, 24h and 48h after operation. Results The MMSE scores of the two groups had no significant difference before operation but were significantly lower than those before operation (P <0.05). The MMSE scores of patients in group recovered at 12h after operation(P <0.05). Scores of group B returned in 24h after operation. Scores of group A were higher than group B at 1 h, 6 h and 12 h after operation, the difference was statistically significant. Conclusion The recovery time of cognitive function in elderly desflurane anesthesia patients was significantly less than that of sevoflurane

Effects of Devoflurane and Sevoflurane on Cognitive Function in Elderly Patients Undergoing General Anesthesia