Comparison between Essential Vocal Tremor and Dystonic Vocal Tremor Treated with Botulinum Toxin and Propranolol

摘要: Objectives:Determine and compare the response to treatment with intramuscular botulinum toxin oral propranolol on vocal tremors, essential dystonic.Methods:Randomized clinical trial between January 2012 September 2013. Fifteen patients tremor were divided into 2 groups: dystonic tremor. Both groups treated in thyroarytenoid muscle (15 units of Dysport unilaterally) (80 120 mg daily) at different times. Time “wash out” after injection 6 months months. Patients underwent self-assessment improvement, nasofibroscopy larynx, perceptual, acoustic analysis voice before each treatment. Data compared according type subjected statistical (significance level .05).Results:There was statistically significant improvement perceptual measure instability botuliu...