Relief of primary cervical dystonia symptoms by low frequency transcranial magnetic stimulation of the premotor cortex: case report.

Arq Neuropsiquiatr

Laboratório de Neurociências e Comportamento, Departamento de Ciências Fisiológicas, Instituto de Ciências Biológicas, Universidade de Brasília, 70919-970 Brasília, DF, Brazil.

Published: September 2007

Objective: To evaluate the effect of low-frequency repetitive transcranial magnetic stimulation (rTMS) on the symptoms of a patient with primary segmental dystonia (PSD).

Method: 1200 TMS pulses at a frequency of 1Hz, over the premotor cortex, with an intensity of 90% of the motor threshold (MT), using an eight-shaped coil; a total of 5 sessions were carried out.

Results: A reduction of 50 percent in the neck subset of the Burke, Fahn and Marsden torsion dystonia scale (BFM) was observed in our patient.

Conclusion: The reduction in the BFM scale supports the concept that rTMS of the premotor cortex may reduce specific motor symptoms in PSD.

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Source
http://dx.doi.org/10.1590/s0004-282x2007000400030DOI Listing

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