Abstract
Purpose: To evaluate the efficacy of acupressure wristbands in the prevention of postoperative nausea and vomiting (PONV).
Methods: Two hundred ASAI - II patients undergoing elective endoscopic urological procedures were included in a randomized, prospective, double blind, placebo-controlled study. Spherical beads of acupressure wristbands were placed at the P6 points in the anterior surface of both forearms in Group 1 patients (acupressure group, n=100) whereas, in Group 2(control group, n=100) they were placed inappropriately on the posterior surface. The acupressure wristbands were applied 30 min before induction of anesthesia and were removed six hours postoperatively. Anesthesia was induced with thiopental and maintained with nitrous oxide and oxygen, fentanly, isoflurane and vecuronium. The tracheas were extubated on the operation table after patients received neostigmine and atropine. Post operative nausea and vomiting were evaluated separately as none, mild, moderate or severe at the time of patient’s arrival in PACU, then at six hours and twenty-four hours after surgery by a blinded observer.
Results: In the acupressure group, 25 patients had PONV compared with 29 patients in the control group (P=NS).
Conclusion: Application of acupressure wristbands at the P6 of both forearms 30 min before induction of anesthesia did not decrease the incidence of PONV in patients undergoing endoscopic urological procedures.
Résumé
Objectif: Évaluer l’efficacité de bracelets d’acupression utilisés pour la prévention des nausées et des vomissements postopératoires (NVPO).
Méthode: Deux cents patients, ASA I – II, devant subir une intervention urologique endoscopique planifiée ont participé à l’étude randomisée, prospective et à double insu contre placebo. Des bracelets de billes d’acupression ont été placés aux points P6 de la face antérieure des deux avant-bras des patients du Groupe 1 (groupe d’acupression, n=100) tandis que dans le Groupe 2, (groupe témoin, n=100), ils l’ont été, de façon inappropriée, sur la face postérieure. On les a appliqués 30 min avant l’induction de l’anesthésie et retirés six heures après l’opération. L’anesthésie comportait du thiopental, à l’induction, et du protoxyde d’azote, de l’oxygène, du fentanyl, de l’isoflurane et du vécuronium. L’extubation trachéale a eu lieu à la salle d’opération après l’administration de néostigmine et d’atropine. Un observateur objectif a évalué les nausées et les vomissements postopératoires comme absents, légers, modérés ou sévères au moment où le patient est arrivé à la salle de réveil, puis six et vingt-quatre heures après l’opération.
Résultats: Dans le groupe d’acupression, 25 patients ont eu des NVPO, comparativement à 29 patients du groupe témoin (P=NS).
Conclusion: L’application de bracelets d’acupression en P6 aux deux avant-bras, 30 min avant l’induction de l’anesthésie, n’a pas diminué l’incidence de NVPO chez des patients qui subissent une intervention urologique endoscopique.
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Agarwal, A., Pathak, A. & Gaur, A. Acupressure wristbands do not prevent postoperative nausea and vomiting after urological endoscopic surgery. Can J Anesth 47, 319–324 (2000). https://doi.org/10.1007/BF03020945
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DOI: https://doi.org/10.1007/BF03020945