chirurgie. Chiang MH 1995

Date: 1995
Auteurs: Chiang MH, Wong JO, Chang DP, Dai YB, Chen CC, Lee SC, Chang CL
Titre: The effect of needleless electroacupuncture in general anesthesia during laparoscopic surgery. Acta Anaesthesiol Sin 1995 Jun;33(2):107-112
Mots clés: VB-34, GB-34, ST-36, E-36, Laparoscopic surgery, endoscopy, laparoscopy, surgery, Yang Ling Quan, Zu San Li, chirurgie, laparoscopie, endoscopie, chirurgie laparoscopique, coelioscopie, coelio-chirurgie, electroacupuncture
Contribution: article
Abstract: Three kinds of pain-relieving substances, namely, endorphins, enkephalins and dynorphins, can be released by stimulating the relevant acupoints with the dense-disperse mode of nerve stimulator. The neurochemical mechanisms of pain relief by acupoint stimulation have been widely studied and roved. In the present study, we investigated the modulatory effect of needleless electroacupuncture on the inhaled general anesthesia during laparoscopic surgery. METHODS: Forty gynecologic patients of ASA class I-II status, scheduled for elective laparoscopic surgery, were randomly allocated to study and control groups. Induction and intubation were performed in the same fashion and anesthesia was maintained with inhaled general anesthetics: 50% N2O in oxygen and isoflurane, which was adjusted to keep the hemodynamic changes within +/- 10% of their preoperated level. HANS (LY 257), a special nerve stimulator with 2 Hz and 100 Hz dense-disperse wave, was used to stimulate the bilateral Yang Ling Chuan (GB-34), Zusanli (ST-36) acupoints in patients of the study group during the surgery. RESULTS: We found that needleless electroacupuncture significantly lowered the volume concentration of isoflurane from 1.0 +/- 0.33% to 0.74 +/- 0.19% (p < 0.05) at 30 min after the start of operation. Furthermore, it also significantly shortened the recovery time from 11.4 +/- 3.3 min to 8.8 +/- 3.2 min (p < 0.05). CONCLUSIONS: Under general anesthesia, the application of needleless electroacupuncture can reduce the volume concentration of isoflurane and shorten the post-anesthetic recovery during laparoscopic surgery. 

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