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Related Experiment Videos

Extrapyramidal dysfunction with cerebral arteriovenous malformations.

J Lobo-Antunes, M D Yahr, S K Hilal

    Journal of Neurology, Neurosurgery, and Psychiatry
    |March 1, 1974
    PubMed
    Summary

    Arteriovenous malformations are rarely linked to basal ganglia dysfunction. This study details four cases where these lesions caused abnormal involuntary movements like tremor and dystonia.

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    Area of Science:

    • Neurology
    • Neuroscience
    • Vascular Neurology

    Background:

    • Arteriovenous malformations (AVMs) are uncommon causes of basal ganglia dysfunction.
    • Basal ganglia dysfunction can manifest as various movement disorders.

    Purpose of the Study:

    • To investigate the clinical and angiographic features of patients with arteriovenous malformations affecting the basal ganglia.
    • To explore the potential mechanisms linking AVMs to basal ganglia dysfunction and movement abnormalities.

    Main Methods:

    • Case series review.
    • Clinical assessment of four patients with basal ganglia AVMs.
    • Angiographic analysis of lesion characteristics.

    Main Results:

    • Four patients presented with basal ganglia AVMs.
    • Abnormal involuntary movements were observed in all four patients.
    • Specific symptoms included contralateral limb tremor and head/neck dystonia.

    Conclusions:

    • Arteriovenous malformations can cause basal ganglia dysfunction and movement disorders.
    • Understanding the relationship between AVMs and basal ganglia circuitry is crucial for diagnosis and treatment.
    • Further research is needed to elucidate the precise mechanisms involved.

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