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Related Experiment Videos

[Bell's palsy].

S Prud'hon1, N Kubis2

  • 1Université Paris Diderot, Sorbonne Paris Cité, 75475 Paris, France; Service de physiologie clinique, hôpital Lariboisière, AP-HP, 75475 Paris, France.

La Revue De Medecine Interne
|April 4, 2018
PubMed
Summary

Bell's palsy, a common cause of facial paralysis, often resolves spontaneously. Early corticosteroid treatment improves recovery rates, while antiviral therapy shows no benefit. This condition can significantly impact quality of life.

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Area of Science:

  • Neurology
  • Ophthalmology

Background:

  • Idiopathic peripheral facial palsy, or Bell's palsy, is the most frequent cause of facial paralysis in adults.
  • While often benign, incomplete recovery can lead to significant psychosocial distress.
  • The leading hypothesis involves HSV-1 reactivation, causing nerve edema and compression within the petrosal bone.

Purpose of the Study:

  • To summarize the clinical presentation, diagnosis, and management of Bell's palsy.
  • To discuss potential complications and the role of electrodiagnostic studies.

Main Methods:

  • Clinical diagnosis based on characteristic symptoms and exclusion of other causes.
  • Assessment of recovery rates with and without corticosteroid treatment.
  • Review of evidence regarding antiviral therapy efficacy.
Keywords:
ElectroneuromyographyElectrophysiologyFacial nerveFacial palsyNerf facialPFÉlectroneuromyogrammeÉlectrophysiologie

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Main Results:

  • Approximately 75% of patients achieve spontaneous full recovery.
  • Oral corticotherapy initiated within 72 hours improves recovery rates.
  • No demonstrated benefit from adding antiviral treatment.

Conclusions:

  • Bell's palsy is primarily diagnosed clinically, requiring exclusion of central or secondary causes.
  • Prompt corticosteroid administration is crucial for enhancing recovery.
  • Electroneuromyography aids in assessing nerve damage, reinnervation, and complications like hemifacial spasms.