Laryngeal electromyography in movement disorders: preliminary data

Arquivos de neuro-psiquiatria
Paulo A T KimaidLuiz A L Resende

Abstract

This study describes preliminary laryngeal electromyography (LEMG) data and botulinum toxin treatment in patients with dysphonia due to movement disorders. Twenty-five patients who had been clinically selected for botulinum toxin administration were examined, 19 with suspected laryngeal dystonia or spasmodic dysphonia (SD), 5 with vocal tremor, and 1 with Gilles de la Tourette syndrome (GTS). LEMG evaluations were performed before botulinum toxin administration using monopolar electrodes. Electromyography was consistent with dystonia in 14 patients and normal in 5, and differences in frequency suggesting essential tremor in 3 and Parkinson tremors in 2. The different LEMG patterns and significant improvement in our patients from botulinum toxin therapy has led us to perform laryngeal electromyography as a routine in UNICAMP movement disorders ambulatory.

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Citations

May 27, 2009·Otolaryngology--head and Neck Surgery : Official Journal of American Academy of Otolaryngology-Head and Neck Surgery·Andrew BlitzerGayle E Woodson
Feb 15, 2011·Journal of Clinical Neuroscience : Official Journal of the Neurosurgical Society of Australasia·Fabiano Bleggi GavazzoniLineu Cesar Werneck
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