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.
Dundee
J W
JW
Department of Anaesthetics, Queen's University of Belfast, Northern Ireland.
Ghaly
G
G
D015667:Acupuncture Analgesia; D000328:Adult; D000772:Anesthesia, Local; D005260:Female; D006801:Humans; D008012:Lidocaine / Q000009:adverse effects*; D009266:Nalbuphine / Q000008:administration & dosage; D011183:Postoperative Complications / Q000139:chemically induced*; D011229:Preanesthetic Medication; D011897:Random Allocation; D014839:Vomiting / Q000139:chemically induced*
D008012:Lidocaine; D009266:Nalbuphine