Practical Geriatrics ›› 2021, Vol. 35 ›› Issue (7): 676-679.doi: 10.3969/j.issn.1003-9198.2021.07.004

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Effect of electroacupuncture on intraoperative cerebral oxygen saturation and postoperative delirium in elderly patients with fragile brain function undergoing hip replacement

LI Xue-fei, ZHENG Man, ZHAN Wei-fang, WANG Wei, ZOU Rong   

  1. Department of Anesthesiology, Affiliated Hospital of Nanjing University of Traditional Chinese Medicine, Nanjing 210029, China
  • Received:2020-07-14 Online:2021-07-20 Published:2021-08-02

Abstract: Objective To investigate the effect of electroacupuncture on intraoperative cerebral oxygen saturation and postoperative delirium in the elderly patients with fragile brain function undergoing hip replacement. Methods A total of 60 elderly patients with fragile brain function receiving hip repalcement surgery under general anesthesia were randomly divided into electroacupuncture group (EA group) and non-electroacupuncture group (C group),with 30 cases in each group. EA group received electroacupuncture from 30 min before induction of anesthesia to 30 min before the end of surgery, while no intervention was performed on the C group. Regional cerebral oxygen saturation (rSO2) was recorded before anesthesia induction (T0), after tracheal intubation (T1), at the beginning of operation (T2), 30 min and 1 h after beginning(T3, T4), and at the end of operation (T5). The mean rSO2(rSO2mean), minimum rSO2 (rSO2min) and maximum declining percentage compared with baseline values (rSO2%max) was calculated.The extubation time, Ricker sedation-agitation scale (RSAS) score and the residence time of postanesthesia care unit (PACU) were recorded. Postoperative delirium and postoperative recovery quality questionnaire (QoR-15) were evaluated 1 d, 2 d and 3 d after surgery. Results Compared with C group, rSO2 at T1-T5, rSO2mean and rSO2min was significantly increased in EA group (P<0.05), while rSO2%max was significantly decreased (P < 0.05); The incidence of delirium in EA group was significantly decreased 1 d after surgery (P<0.05); The extubation time as well as the residence time of PACU was significantly shortened (P<0.05), and RSAS score was significantly reduced in EA group (P<0.05); QoR-15 score was significantly increased on 1 d, 2 d and 3 d after surgery in EA group(P<0.05). Conclusions Electroacupuncture can improve intraoperative rSO2 in the elderly patients with fragile brain function undergoing hip replacement, reduce the incidence of postoperative delirium, improve the quality of recovery, and accelerate the quality of postoperative recovery, which may be due to the improvement of cerebral oxygen metabolism.

Key words: electroacupuncture, aged, fragile brain function, cerebral oxygen saturation, postoperative delirium

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