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This is a study of patients with spasmodic dysphonia to determine how best to measure the severity of the disorder in patients. It addresses which characteristics of speech are the best indicator of whether or not a particular treatment has benefited a person with spasmodic dysphonia. We hope to recruit 20 participants each at 2 different centers. The evaluation for each participant will be done on a two visits, one just before and another several weeks after treatment.
Full description
This is a study of changes in voice and laryngeal function with treatment recorded using the Spasmodic Dysphonia Diagnosis and Assessment Procedure (SD-DAP). Persons with adductor spasmodic dysphonia will complete a questionnaire on the Voice Handicap Index (VHI) and ratings of speech effort as well as have their speech recorded and receive a nasolaryngoscopy examination prior to their usual treatment with botulinum toxin injection into the laryngeal muscles for their voice disorder. They will return for re-examination several weeks later after their injection and repeat each of the examinations. The purpose is to determine which items on the SD-DAP are sensitive to changes in the severity of their voice disorder. The items that show sensitivity would be those that would be useful for assessing voice outcomes in clinical trials. Some of the questions this study is trying to answer are
Each participant in this study will be asked to do the following:
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Data sourced from clinicaltrials.gov
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