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Related Experiment Videos

Transcutaneous nerve stimulation and itching

B Fjellner, O Hägermark

    Acta Dermato-Venereologica
    |January 1, 1978
    PubMed
    Summary

    Transcutaneous nerve stimulation (TNS) offers temporary relief for chronic itching in many patients. However, its effectiveness diminishes over time, suggesting limited long-term value for pruritus treatment.

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    Area of Science:

    • Neurology
    • Dermatology
    • Pain Management

    Background:

    • Chronic itching (pruritus) significantly impacts quality of life.
    • Transcutaneous nerve stimulation (TNS) is a non-invasive method explored for pain management.
    • The efficacy of TNS for diverse causes of chronic itching requires investigation.

    Purpose of the Study:

    • To evaluate the effectiveness and duration of TNS in alleviating chronic itching across various etiologies.
    • To assess the long-term response and potential decline in efficacy of TNS therapy for pruritus.

    Main Methods:

    • A cohort of 41 patients with chronic itching of diverse origins participated.
    • Initial treatment involved short TNS sessions (5-30 minutes).
    • A subset of 15 patients received repeated TNS sessions over 5-47 days.

    Main Results:

    • 63% of patients experienced amelioration of itching, with 20% reporting complete relief during initial trials.
    • Initial TNS effects often lasted for many hours after brief stimulation.
    • In patients receiving prolonged treatment, efficacy declined, with only 6 maintaining partial relief and none achieving complete resolution.

    Conclusions:

    • Transcutaneous nerve stimulation (TNS) provides short-term relief for chronic itching in a majority of patients.
    • The therapeutic effect of TNS appears to diminish with repeated or prolonged use.
    • TNS demonstrates limited long-term value as a treatment for chronic pruritus, potentially due to a declining placebo effect.

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