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Hemichorea Neglect after Stroke.

Yosuke Aiba¹, Ryuji Sakakibara¹, Tsuyoshi Ogata¹

¹Neurology, Internal Medicine, Sakura Medical Center, Toho University, Sakura, Japan.

Case Reports in Neurology

|March 12, 2021

Summary

This summary is machine-generated.

A rare case of right hemichorea and neglect followed left thalamic infarction in a 74-year-old woman. Brain imaging revealed perfusion changes, suggesting de-afferentiation as a cause.

Keywords:

Hemichorea Neglect Striatum Stroke

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Area of Science:

Neurology
Neuroscience
Radiology

Background:

Thalamic infarction is a stroke affecting the thalamus, a key relay center in the brain.
Hemichorea is an involuntary, irregular, and jerky movement disorder affecting one side of the body.
Neglect is a neurological disorder where patients are unaware of one side of space.

Observation:

A 74-year-old Japanese woman experienced right hemichorea and neglect after a left thalamic infarction.
Neuroimaging demonstrated altered brain perfusion in both ipsilateral and contralateral areas.

Findings:

The observed symptoms and perfusion changes suggest a link between thalamic damage and subsequent movement and spatial awareness deficits.
De-afferentiation, a loss of sensory input, is hypothesized as the underlying mechanism for these neurological alterations.

Implications:

This case highlights the complex relationship between thalamic function and motor control, as well as spatial attention.
Understanding these mechanisms can inform future therapeutic strategies for stroke recovery and movement disorders.
Further research into thalamic connectivity and de-afferentiation is warranted to elucidate these neurological phenomena.