Auricular electroacupuncture (EA) increased plasma ACTH and beta-endorphin levels significantly in 10 patients receiving EA as an analgesic aid during surgery. Pre-treatment with iv hydrocortisone (200 mg) completely suppressed both ACTH and beta-endorphin release in response to EA without significantly affecting EA anaesthesia in 6 other patients and in a patient with Addison's disease.
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