• Pain management · May 2017

    Randomized Controlled Trial

    Efficacy of the topical 5% lidocaine medicated plaster in the treatment of chronic post-thoracotomy neuropathic pain.

    • Pasquale Sansone, Maria Beatrice Passavanti, Alfonso Fiorelli, Caterina Aurilio, Umberto Colella, Lorenzo De Nardis, Valerio Donatiello, Vincenzo Pota, and Maria Caterina Pace.
    • Department of Woman, Child, General & Specialized Surgery, University of Campania L. Vanvitelli, Naples, Italy.
    • Pain Manag. 2017 May 1; 7 (3): 189-196.

    AimTo assess the efficacy of the topical 5% lidocaine medicated plaster (Versatis®, Grünenthal GmbH, Aachen, Germany) in patients with post-thoracotomy neuropathic pain.Patients & MethodsPatients were randomized to receive the topical 5% lidocaine medicated plaster (n = 33) or non-medicated placebo plasters (n = 30) for 12 h every day for 8 weeks. Laser-evoked potentials (LEPs) were measured, and various questionnaires/scales completed.ResultsNumeric Rating Scale pain scores improved significantly (p < 0.01) more in topical 5% lidocaine medicated plaster than in placebo recipients. The same was true for N2 and P2 LEP latency and amplitude, and other parameters.ConclusionThe study included neurophysiological findings and confirmed the efficacy of the topical 5% lidocaine medicated plaster in patients with chronic post-thoracotomy neuropathic pain.

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