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Related Experiment Videos

Painful ataxic hemiparesis.

J Bogousslavsky, F Regli, J Ghika

    Archives of Neurology
    |August 1, 1984
    PubMed
    Summary

    A thalamic infarct caused right hemiparesis, pain, and ataxia in a patient. This case suggests a new syndrome, "painful ataxic hemiparesis," linked to thalamic and adjacent internal capsule dysfunction.

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    Area of Science:

    • Neurology
    • Neuroscience
    • Clinical Medicine

    Background:

    • Thalamic infarcts can present with diverse neurological deficits.
    • Ataxic hemiparesis is a recognized syndrome, typically involving the pons or internal capsule.

    Observation:

    • A 68-year-old man presented with right hemiparesis, right-sided pain, and ataxia.
    • Neuroimaging revealed an isolated infarct in the left thalamus.
    • Associated findings included hyperactive reflexes and Babinski's sign, suggesting adjacent internal capsule involvement.

    Findings:

    • The patient's symptoms, particularly the presence of pain, distinguished this case from typical ataxic hemiparesis.
    • The study proposes that thalamic involvement, potentially with secondary effects on the internal capsule, underlies this presentation.

    Implications:

    • This case expands the clinical spectrum of thalamic infarction.
    • The proposed syndrome, "painful ataxic hemiparesis," highlights the importance of considering thalamic lesions in patients with unexplained hemiparesis and pain.
    • Further research may elucidate the precise mechanisms and prevalence of this syndrome.

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