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Movement Disorders

Ostrem JL, Racine CA, Glass GA et al.

University of California San Francisco, San Francisco, CA, USA.

 Neurology 2011;76:870–8.

Editor’s note: Globus pallidus internus (GPi) stimulation is now routinely used for the treatment of severe medication-refractory primary cervical dystonia, whereas subthalamic nucleus (STN) stimulation is used for the treatment of appropriate patients with advanced Parkinson’s disease. Although GPi stimulation consistently provides benefit to patients with cervical dystonia, some patients notice gait deterioration and mild motor slowing (bradykinesia) in previously unaffected parts of the body that does not appear to be the result of inadvertent stimulation of the corticospinal tract.

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