The effect of TEAS on the quality of early recovery in patients undergoing gynecological laparoscopic surgery: a prospective, randomized, placebo-controlled trial

Introduction In current study we assessed the effect of transcutaneous electrical acupoint stimulation (TEAS) on the quality of early recovery in patients undergoing gynecological laparoscopic surgery. Methods Sixty patients undergoing gynecological laparoscopic surgery were randomly assigned to TEAS (TEAS group) or control group (Con group). TEAS consisted of 30 min of stimulation (12-15 mA, 2/100 Hz) at the acupoints of Baihui (GV20), Yingtang (EX-HN-3), Zusanli (ST36) and Neiguan (PC6) before anesthesia. The patients in the Con group had the electrodes applied, but received no stimulation. Quality of recovery was assessed using a 40-item questionnaire as a measure of quality of recovery (QoR-40; maximum score 200) scoring system performed on preoperative day 1 (T0), postoperative day 1 (T1) and postoperative day 2 (T2); 100-mm visual analogue scale (VAS) scores at rest, mini-mental state examination (MMSE) scores, the incidence of nausea and vomiting, postoperative pain medications, and antiemetics were also recorded. Results: QoR-40 and MMSE scores of T0 showed no difference between two groups (QoR-40: 197.50 +/- 2.57 vs. 195.83 +/- 5.17), (MMSE: 26.83 +/- 2.74 vs. 27.53 +/- 2.88). Compared with the Con group, QoR-40 and MMSE scores of T1 and T2 were higher in the TEAS group (P < 0.05) (QoR-40: T1, 166.07 +/- 8.44 vs. 175.33 +/- 9.66; T2, 187.73 +/- 5.47 vs. 191.40 +/- 5.74), (MMSE: T1, 24.60 +/- 2.35 vs. 26.10 +/- 2.78; T2, 26.53 +/- 2.94 vs. 27.83 +/- 2.73). VAS scores of T1 and T2 were lower (P < 0.05) in the TEAS group (T1, 4.73 +/- 1.53 vs. 3.70 +/- 1.41; T2, 2.30 +/- 0.95 vs. 1.83 +/- 0.88); the incidence of postoperative nausea and vomiting (PONV), remedial antiemetics and remedial analgesia was lower in the TEAS group (P < 0.05) (PONV: 56.7% vs. 23.3%; incidence of remedial antiemetics: 53.3% vs. 23.3%; incidence of remedial analgesia: 80% vs. 43.3%). Conclusion The use of TEAS significantly promoted the quality of early recovery, improved MMSE scores and reduced the incidence of pain, nausea and vomiting in patients undergoing gynecological laparoscopic surgery.