| خلاصه مقاله | Introduction: Speech disorders such as voice, nasality and articulation difficulties at early stage of multiple sclerosis is prevalent and their therpy or intervention are important in MS patients.
Materials and Methods: We conducted a search in PMC, Science Direct and Neuroscience, PubMed databases. The present information is available reviewing the articles from 1996 to 2020 through the search of the resources.
Results: In approximately 41% of individuals with MS voice, articulation, and swallowing disorders are significant sequelae. The most prominent speech deviations in the patients studied were impaired control of loudness and harshness, noted to some degree in more than 70% of the patients. Articulation was defective to some degree in about half the patients. Articulation, voice, or resonance impairments secondary to neurologic disease, injury, or surgery are defined as a dysarthria. Darley et al's (1972) found 41% of the MS patients analyzed exhibited some speech disturbance in voice, articulation, or resonance. They reported the following speech symptoms in order of their frequency of occurrence such as impaired loudness control, voice harshness, defective articulation, impaired intonation or prosody, impaired pitch control. The speech-language pathologist will isolate the primary dysarthric consequences of the neurologic disorder within the major speech production systems, including respiration, phonation, articulation, resonance, and prosody, and will proceed to strengthen or maintain motor skills that facilitate functional verbal communication. When MS significantly involves the brain stem or cerebral pathways, speech rehabilitation may be warranted as an active, intensive program. For more severe patients, a short-term speech rehabilitation maintenance program may be necessary.
Conclusion: Because the multiple sclerosis exacerbations often remit for long periods of time, speech rehabilitation such as respiration, phonation, articulation, resonance, and prosody can be highly effective in managing the intervention episodes. Speech therapy and speech pathologist is essential for these patients. |