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  • Title: [Effect of high-frequency percutaneous stimulation on experimental pain].
    Author: Cruccu G, Fornarelli M, Fucito G, Inghilleri M, Visconti M.
    Journal: Boll Soc Ital Biol Sper; 1982 Jun 30; 58(12):761-5. PubMed ID: 6980655.
    Abstract:
    Ten healthy volunteers were submitted to an experimental pain test performed by electrical stimulation of one tooth, before and after 20 min high-frequency (300 Hz) electrical stimulation, for the purpose of relieving pain, delivered to the lip or to three other somatotopically non related areas. The stimulation of the lip only showed a statistically significant analgesic action. The effect was remarkable (31% of total pain relief) and of the same order of magnitude at any intensity level of the tooth stimulation, the threshold being affected too. It is concluded that a central inhibitory mechanism, activated by large afferents input, should subserve this kind of analgetic procedure.
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