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Ventral intermediate thalamotomy for hemiballismus

G I Jallo1, M Dogali

  • 1Department of Neurosurgery, New York University Medical Center, New York, USA.

Stereotactic and Functional Neurosurgery
|January 1, 1995
PubMed
Summary
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This case report details a successful stereotactic thalamotomy for treating severe hemiballismus in a young female. The procedure significantly reduced involuntary flinging movements, improving the patient's quality of life.

Area of Science:

  • Neurosurgery
  • Movement Disorders
  • Neurology

Background:

  • Hemiballismus, characterized by violent, involuntary limb movements, can be debilitating.
  • Acquired hemiballismus can occur post-cardiac surgery, posing a therapeutic challenge.
  • Previous medical treatments for this patient were ineffective.

Observation:

  • A 13-year-old female presented with persistent left-sided hemiballismus following cardiac bypass surgery at age 8.
  • The involuntary flinging movements severely impacted her daily life, leading to a year of missed schooling.
  • Conservative management with various medications failed to control the symptoms.

Findings:

  • Stereotactic thalamotomy targeting the right ventral intermediate nucleus was performed under local anesthesia.

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  • The procedure resulted in immediate and significant reduction of hemiballistic movements.
  • Post-operative recovery was uneventful, with only minor residual finger and wrist movements.

    • Implications:

    • Stereotactic thalamotomy is a viable and effective treatment for drug-resistant hemiballismus.
    • This minimally invasive technique offers a precise approach to lesioning in deep brain structures.
    • Successful thalamotomy can dramatically improve functional outcomes and quality of life for patients with severe movement disorders.