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Effect of different concentrations of Desflurane combined with intravenous anesthesia on intraoperative cerebral oxygen metabolism and postoperative delirium in elderly hip fracture patients with mild cognitive impairment |
WU Zhenpang WANG Lixia ZUO Wenjie NIE Guangchen ZHEN Xingang JU Ying XIAO Jingkuan CHEN Ning |
Department of Anesthesiology, the Fifth Hospital of Harbin City, Heilongjiang Province, Harbin 150040, China
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Abstract Objective To observe the effect of different concentrations of Desflurane combined with intravenous anesthesia on intraoperative cerebral oxygen metabolism and postoperative delirium in elderly hip fracture patients with mild cognitive impairment (MCI). Methods A total of 90 elderly hip fracture patients with MCI admitted to the Department of Orthopedics, the Fifth Hospital of Harbin City from January to October 2022 were selected. They were divided into 1% Desflurane group (group D1), 3% Desflurane group (group D2), and 5% Desflurane group (group D3) by random number table method, with 30 cases in each group. All patients underwent robot-assisted proximal femoral intramedullary nail fixation under general anesthesia. The awakening time, extubation time, postanesthesia care unit (PACU) residence time, Propofol dosage, and the number of vasoactive drug users among three groups were compared; the cerebral blood flow/cerebral metabolic rate of oxygen (CBF/CMRO2) and jugular venous oxygen saturation (SjvO2) among three groups were compared immediately after induction (T1) and at suture (T2); the incidence of postoperative delirium among three groups within three days after operation was compared. Results There were statistically significant differences in awakening time, extubation time, PACU residence time, and Propofol dosage among three groups (P<0.05); the recovery time, extubation time, and PACU residence time in group D3 were shorter than those in group D1, and longer than those in group D2; and Propofol dosage was lower than those in group D1 and D2, and the differences were statistically significant (P<0.05). The recovery time, extubation time, and PACU residence time in group D2 were shorter than those in group D1, and Propofol dosage was lower than that in group D1, and the differences were statistically significant (P<0.05). At T1, there were no significant differences in CBF/CMRO2 and SjvO2 among three groups (P>0.05); at T2, there were significant differences in CBF/CMRO2 and SjvO2 among three groups (P<0.05); the CBF/CMRO2 and SjvO2 in group D3 were higher than those in group D1 and D2, and the CBF/CMRO2 and SjvO2 in group D2 were higher than those in group D1, and the differences were statistically significant (P<0.05). There was statistical significance in the number of postoperative delirium among three groups (P<0.05). Conclusion 3% Desflurane combined intravenous anesthesia can reduce the intraoperative brain metabolism in elderly hip fracture patients with MCI, which is conducive to early postoperative recovery and reduce the occurrence of postoperative delirium, and is worthy of clinical promotion.
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