Relief of primary cervical dystonia symptoms by low frequency transcranial magnetic stimulation of the premotor cortex: case report.
OBJECTIVE
To evaluate the effect of low-frequency repetitive transcranial magnetic stimulation (rTMS) on the symptoms of a patient with primary segmental dystonia (PSD).


METHODS
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.


CONCLUSIONS
The reduction in the BFM scale supports the concept that rTMS of the premotor cortex may reduce specific motor symptoms in PSD.
Allam
Nasser
N
Laboratório de Neurociências e Comportamento, Departamento de Ciências Fisiológicas, Instituto de Ciências Biológicas, Universidade de Brasília, 70919-970 Brasília, DF, Brazil.
Brasil-Neto
Joaquim Pereira
JP
Brandão
Pedro
P
Weiler
Fernanda
F
Barros Filho
Jairo de
Jd
Tomaz
Carlos
C
D000328:Adult; D019054:Evoked Potentials, Motor / Q000502:physiology; D006801:Humans; D008297:Male; D009044:Motor Cortex / Q000502:physiology*; D009334:Neck Muscles / Q000503:physiopathology; D014103:Torticollis / Q000473:pathology / Q000503:physiopathology*; D050781:Transcranial Magnetic Stimulation