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To evaluate the effectiveness and safety of transcutaneous electrical acupoint stimulation (TEAS) for improving postoperative cognitive function in senior patients undergoing video-assisted thoracoscopic surgical (VATS).From January to December 2020, 97 participants were randomly assigned to the TEAS group (49 cases) and the control group (48 cases) by a random number table. The patients in the TEAS group received TEAS, at the bilateral Neiguan (PC 6) and Zusanli (ST 36) acupoints. The control group received sham TEAS. The stimulation was started from 30 min before surgery until the end of the operation. The primary outcome was the incidence of pstoperative cognitive dysfunction (POCD), diagnosed based on the changes in the Mini-Mental Status Examination (MMSE) and Montreal Cognitive Assessment (MoCA) scores. The secondary outcomes were plasma levels of S100β protein and neuron-specific enolase (NSE).The incidence of POCD on day 1 and 3 after surgery in the TEAS group was significantly lower than that in the control group [day 1 after surgery: 28.3% (13/46) vs. 52.3% (23/44), P=0.028; day 3 after surgery: 21.7% (10/46) vs. 40.9% (18/44), P=0.043]. Compared with baseline, the MMSE and MoCA scores decreased to various extents in both groups. The MMSE scores on day 1, 3, and 5 after surgery and MoCA scores on day 1, 3, 5, and 7 after surgery in the TEAS group were higher than those in the control group (all P0.05) in both groups. Compared with baseline, the plasma levels of S100β and NSE were significantly increased at 4, 8, 12, 24 h after surgery (all P0.05). Compared with the control group, the plasma levels of S100β and NSE were lower in the TEAS group at 4, 8, 12, and 24 h after surgery (all P0.05). No obvious adverse events were found during the trial.Application of TEAS in senior patients after VATS could reduce incidence of POCD and improve postoperative cognitive function. |
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