![]() Multiple sclerosis: Amidst 25% and 50% of patients with multiple sclerosis show with dysarthria at some stage during the continuity of their disease. ![]() Parkinson's disease: Estimation that dysarthria impacts approximately 70%–100% of patients post Parkinson's disease.Traumatic brain injury: Approximately 10%–65% of patients post traumatic brain injury have dysarthria.Stroke: Estimated that 8%–60% of patients with stroke present with dysarthria.Vascular Diseases: stroke (hemorrhagic or nonhemorrhagic), Moyamoya disease, anoxic or hypoxic encephalopathy, arteriovenous malformations.Trauma: traumatic brain injury, chronic traumatic encephalopathy, neck trauma, neurosurgical/postoperative trauma, skull fracture.Toxic/metabolic diseases: alcohol, botulism, carbon monoxide poisoning, central pontine myelinolysis, heavy metal or chemical toxicity, hepatocerebral degeneration, hypothyroidism, hypoxic encephalopathy, lithium toxicity, Wilson's disease.Other neurologic conditions: hydrocephalus, Meige syndrome, myoclonic epilepsy, neuroacanthocytosis, radiation necrosis, sarcoidosis, seizure disorder, Tourette's syndrome, Chorea gravidarum.Neoplastic diseases: central nervous system tumors cerebral, cerebellar, or brainstem tumors paraneoplastic cerebellar degeneration.Infectious diseases: acquired immune deficiency syndrome (AIDS), Creutzfeldt-Jakob disease, herpes zoster, infectious encephalopathy, central nervous system tuberculosis, poliomyelitis.Demyelinating and inflammatory diseases: multiple sclerosis, encephalitis, Guillain-Barré and associated autoimmune diseases, meningitis, multifocal leukoencephalopathy.Degenerative diseases: amyotrophic lateral sclerosis (ALS), Parkinson's disease, progressive supranuclear palsy, cerebellar degeneration, corticobasal degeneration, multiple system atrophy, Friedreich's ataxia, Huntington's disease, olivopontocerebellar atrophy, spinocerebellar ataxia, ataxia telangiectasia.Congenital: cerebral palsy, Chiari malformation, congenital suprabulbar palsy, syringomyelia, syringobulbia.The neurological damage that can result in dysarthria can be from : This may impact the muscles in one or several of the following areas: Mechanism of Injury / Pathological Process ĭamage to the nervous system causes hypotonicity in the muscles that create speech sounds. Dysarthria might co-exist with other neurogenic language, cognitive, and swallowing disorders. It is necessary to be aware that intelligence can be normal in some speakers with dysarthria. Dysarthria can negatively impact the comprehensibility of speech, realism of speech, or both. These anomalies are the result of one or several sensorimotor issues, including weakness or paralysis, incoordination, involuntary movements, or immoderate, declined, or inconstant muscle tone. 2 Mechanism of Injury / Pathological Processĭysarthria pertains to a category of neurogenic speech disorders distinguished by an anomaly in the strength, speed, availability, stableness, tone, or accuracy of movements necessary for breathing, phonatory, resonatory, articulatory, or prosodic features of speech creation.
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