Local anesthesia blocks the antiemetic action of P6 acupuncture.
The incidence of postoperative illness was monitored for 6 hours in 74 women premedicated with nalbuphine, 10 mg, and undergoing short gynecologic operations of similar duration under methohexitalnitrous oxide-oxygen anesthesia. Each patient received P6 acupuncture for 5 minutes at the time of administration of premedication. In random order the site of the acupuncture had been previously infiltrated with normal saline solution in half of the patients and 1% lidocaine in the remaining patients. Postoperative emetic sequelae occurred significantly more often in those who received lidocaine compared with the group that received saline solution. This demonstrates the ability of a local anesthetic administered at the point of stimulation to block the antiemetic action of P6 acupuncture in a manner similar to that shown by others for analgesia.[1]References
- Local anesthesia blocks the antiemetic action of P6 acupuncture. Dundee, J.W., Ghaly, G. Clin. Pharmacol. Ther. (1991) [Pubmed]
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