Assessment And Treatment Of Adductor Spasmodic Dysphonia

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Assessment and Treatment of Adductor Spasmodic Dysphonia Julia Mangum East Carolina University Assessment and Treatment of Adductor Spasmodic Dysphonia Adductor spasmodic dysphonia (ADSD) is a voice disorder due to central motor processing abnormalities which result in decreased control of the laryngeal muscles (Blitzer, 2010). The idiopathic disorder is characterized by involuntary spasms of the laryngeal muscles controlling vocal fold adduction (National Spasmodic Dysphonia Association, 2012). The dysphonic characteristics presented by patients with ADSD are described as strained, strangled, and effortful due to irregular adductions of the vocal folds and the occlusion of air through the vocal tract during phonation(Blitzer,2010; Cannito, Doiuchi, Murry &Woodson, 2012). Patients with muscle tension dysphonia (MTD) present with similar perceptual vocal characteristics however, treatment for the two disorders is quite different. Speech-language pathologists often have difficulty diagnosing and distinguishing between ADSD, a neurological disorder, and MTD, a functional voice disorder (Rees et al., 2007). Correct diagnosis is important and objective measures, such as spectral analysis, are more sufficient in distinguishing the two disorders(Rees et al., 2007). ADSD has a neurologic etiology but the exact cause is still unknown (Lee et al., 2003). Tanner et al. (2009) identified mumps, meningitis, tremor, cancer, and convulsive behaviors as factors that
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