• J Spinal Cord Med · Jul 2014

    Randomized Controlled Trial

    The effect of repetitive transcranial magnetic stimulation on refractory neuropathic pain in spinal cord injury.

    • Bilge Yılmaz, Serdar Kesikburun, Evren Yaşar, and Arif Kenan Tan.
    • J Spinal Cord Med. 2014 Jul 1;37(4):397-400.

    ObjectiveTo investigate the analgesic effect of repetitive transcranial magnetic stimulation (rTMS) on intractable neuropathic pain in patients with spinal cord injury (SCI).DesignA single center, prospective, randomized, double-blinded, controlled study.SettingSCI rehabilitation unit of university rehabilitation center.ParticipantsSeventeen patients with SCI and chronic neuropathic pain who met the inclusion criteria recruited between April 2010 and January 2012.InterventionsTen daily treatment sessions of real or sham rTMS (30 trains of 10-Hz stimuli for a duration of 5 seconds; a total of 1500 pulses at intensity equal to 110% of the resting motor threshold) was applied over vertex using a figure-of-8-shaped coil.Outcome MeasuresPain was assessed with visual analog scale (VAS) at baseline and 10 days, 6 weeks and 6 months after the treatment. Patients' satisfactions obtained using a 5-point Likert scale at 6 months.ResultsBoth real and sham rTMS provided a significant reduction in the VAS scores (real rTMS group, P = 0.004; sham rTMS group, P = 0.020). Post hoc analysis revealed the significant difference was at 10 days and 6 weeks compared to baseline in the real rTMS group and only at 10 days compared to baseline in the sham rTMS group. Comparison of VAS scores and patient satisfaction did not show any significant difference at each assessment point (P > 0.05).ConclusionOur results demonstrated analgesic effect of rTMS on intractable neuropathic pain in SCI was not superior to placebo. However, middle-term (over 6 weeks) pain relief by rTMS is encouraging and suggests the need for future studies with a larger sample size.

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