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Lower motor neurone dysarthria

Last reviewed dd mmm yyyy. Last edited dd mmm yyyy

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In this type of dysarthria there is failure of articulation due to muscular weakness resulting from:

  • lesions of the brainstem nuclei or cranial nerves numbered VII, IX, X or XII
  • progressive bulbar palsy
  • Guillan-Barre
  • myasthenia gravis
  • poliomyelitis
  • diphtheria

There is often wasting and fasciculation of the tongue. Palatal and lip movements may be impaired. There may be an associated problem with phonation.

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The content herein is provided for informational purposes and does not replace the need to apply professional clinical judgement when diagnosing or treating any medical condition. A licensed medical practitioner should be consulted for diagnosis and treatment of any and all medical conditions.

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