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Periodic alternating nystagmus.

J R DiBartolomeo1, R D Yee

  • 1Department of Head and Neck Surgery, UCLA School of Medicine.

Otolaryngology--Head and Neck Surgery : Official Journal of American Academy of Otolaryngology-Head and Neck Surgery
|December 1, 1988
PubMed
Summary
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Periodic alternating nystagmus (PAN) is a specific eye movement disorder. Some cases of PAN may improve with baclofen treatment, offering a new therapeutic option.

Area of Science:

  • Neurology
  • Ophthalmology
  • Vestibular Science

Background:

  • Horizontal jerk nystagmus signals vestibular system dysfunction.
  • Periodic alternating nystagmus (PAN) is a distinct type of spontaneous nystagmus.

Observation:

  • PAN presents as nystagmus beating in one direction for 1-2 minutes, followed by a null phase.
  • The nystagmus then reverses direction for a comparable duration.
  • This condition can be congenital or acquired, often linked to vestibular-cerebellar disorders or vision loss.

Findings:

  • Recent case studies suggest baclofen therapy can be effective for certain forms of PAN.
  • Baclofen may offer a potential treatment avenue for patients with this specific nystagmus pattern.

Related Experiment Videos

Implications:

  • These findings could lead to new treatment strategies for periodic alternating nystagmus.
  • Further research into baclofen's efficacy in vestibular disorders is warranted.