Laryngeal electromyography in movement disorders: preliminary data.
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.
Kimaid
Paulo A T
PA
Servicio de Neurologia, Faculdade de Ciências Medicas, Universidade de Estadual de Campinas (UNICAMP), Campinas, SP, Brazil.
Quagliato
Elizabeth M A B
EM
Crespo
Agrício N
AN
Wolf
Aline
A
Viana
Maura A
MA
Resende
Luiz A L
LA
D000328:Adult; D017677:Age Distribution; D000368:Aged; D018726:Anti-Dyskinesia Agents / Q000627:therapeutic use*; D001905:Botulinum Toxins / Q000627:therapeutic use*; D004552:Elder Abuse; D004576:Electromyography; D005260:Female; D006801:Humans; D007821:Laryngeal Muscles / Q000187:drug effects; D007830:Larynx; D008297:Male; D008875:Middle Aged; D009069:Movement Disorders / Q000150:complications / Q000188:drug therapy / Q000503:physiopathology*; D017678:Sex Distribution; D014832:Voice Disorders / Q000150:complications / Q000188:drug therapy* / Q000503:physiopathology
D018726:Anti-Dyskinesia Agents; D001905:Botulinum Toxins