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[Avellis' syndrome in brainstem infarctions].

M Krasnianski1, S Neudecker, A Schlüter

  • 1Klinik und Poliklinik für Neurologie, Halle/Saale. sekretariat.neurologie@medizin.uni-halle.de

Fortschritte Der Neurologie-Psychiatrie
|December 9, 2003
PubMed
Summary

Avellis' syndrome, characterized by laryngeal hemiplegia, can result from brainstem ischemia. This syndrome specifically involves ipsilateral palatolaryngeal paresis and contralateral hemiparesis, as per its original description.

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Area of Science:

  • Neurology
  • Neuroscience
  • Clinical Medicine

Background:

  • Avellis described laryngeal hemiplegia in 1891, linking it to peripheral vagal/glossopharyngeal nerve lesions or brainstem infarctions.
  • This condition represents a classical brainstem syndrome with potential neurological implications.

Observation:

  • This study details two patients presenting with Avellis' syndrome attributed to brainstem ischemia.
  • Contemporary literature shows heterogeneity in defining Avellis' syndrome in brainstem lesions, often associating it with nucleus ambiguus lesions and varied neurological deficits.

Findings:

  • The study concludes that Avellis' syndrome, strictly defined, encompasses ipsilateral palatolaryngeal paresis combined with contralateral hemiparesis and/or hemihypesthesia.
  • This precise definition aligns with Avellis' original description of the brainstem syndrome.

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Implications:

  • Clarifying the diagnostic criteria for Avellis' syndrome improves understanding of brainstem stroke syndromes.
  • Accurate diagnosis aids in targeted neurological assessment and patient management for brainstem lesions.
  • This research highlights the importance of adhering to original clinical descriptions for rare neurological syndromes.