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Unilateral periocular spasm.

Clay Walker1

  • 1Clay Walker practices in family medicine at the Mayo Clinic in Phoenix, Ariz., and is an adjunct faculty member in the PA programs at Southern Illinois University in Carbondale, Ill., Rush University in Chicago, Ill., A.T. Still University in Mesa, Ariz., and Franklin Pierce University in Rindge, N.H. The author has disclosed no potential conflicts of interest, financial or otherwise.

JAAPA : Official Journal of the American Academy of Physician Assistants
|January 25, 2024
PubMed
Summary

Hemifacial spasm involves uncontrollable facial twitches, often caused by blood vessel compression. Botulinum toxin offers temporary relief, while surgery addresses the root cause with high success rates.

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Area of Science:

  • Neurology
  • Neurosurgery

Background:

  • Hemifacial spasm is characterized by involuntary, persistent contractions on one side of the face.
  • The primary cause is typically neurovascular compression of the facial nerve at the brainstem.

Purpose of the Study:

  • To summarize the diagnostic approaches and treatment options for hemifacial spasm.
  • To compare the efficacy and outcomes of botulinum toxin therapy and microvascular decompression.

Main Methods:

  • Diagnosis relies on clinical history, physical examination, electromyography (EMG), and magnetic resonance imaging (MRI).
  • Treatment strategies include pharmacotherapy with botulinum toxin and surgical intervention via microvascular decompression.

Main Results:

  • Botulinum toxin therapy demonstrates high effectiveness (85-95% success) for symptomatic relief with few adverse effects.
  • Surgical microvascular decompression offers a high average success rate (85%) by addressing the underlying cause.

Conclusions:

  • Both botulinum toxin and microvascular decompression are effective treatments for hemifacial spasm.
  • The choice of treatment depends on patient factors and treatment goals, balancing symptomatic relief with addressing the underlying pathology.