Motor cortex electric stimulation for the treatment of neuropathic pain

Arquivos de Neuro-Psiquiatria

Walter J. Fagundes-pereyra²  Manoel Jacobsen Teixeira¹  Nicolas Reyns²  Gustavo Touzet²  Sérgio Dantas²  Emmanuelle Laureau¹  Serge Blond² 

[1] ,University of Lille Roger Salengro Hospital Department of NeurosurgeryLille,France

关键词: electric motor cortex stimulation;    neuropathic pain;    central pain;    peripheral pain;    treatment;    estimulação elétrica do córtex motor;    dor neuropática;    dor central;    dor periférica;    tratamento;   

DOI  :  10.1590/S0004-282X2010000600018

来源: SciELO

【 摘 要 】

OBJECTIVE: Motor cortex stimulation (MCS) is considered to be an effective treatment for chronic neuropathic pain. The aim of the present study was to assess the efficacy of MCS for treating neuropathic pain. METHOD: 27 patients with chronic neuropathic pain were operated. Electrodes were implanted with the use of an stereotactic frame. Electrophysiological evaluations (motor stimulation and somatosensory evoked potentials) were performed, with guidance by means of three-dimensional reconstruction of magnetic resonance images of the brain. 10 patients (37%) presented central neuropathic pain (post-stroke pain) and 17 others (63%) presented peripheral neuropathic pain (brachial plexus avulsion, phantom limb pain or trigeminal pain). RESULTS: In 15 patients (57.7%) the pain relief was 50% or more; while in ten patients (38.5%), more than 60% of the original pain was relieved. No differences were found in relation to central and peripheral neuropathic pain (p=0.90), pain location (p=0.81), presence of motor deficit (p=0.28) and pain duration (p=0.72). No major complications were observed. CONCLUSION: MCS was efficient for treating patients presenting chronic central or peripheral neuropathic pain.

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