Abstract
Chorea-acanthocytosis is a rare autosomal recessive disorder. To date, treatment is only symptomatic and supportive. Results from the few reports of chorea-acanthocytosis patients treated with deep brain stimulation (DBS) have been inconsistent. We present case reports for two patients with chorea-acanthocytosis who received DBS treatment and compare the outcomes with results from the literature. Both patients showed the typical clinical features of chorea-acanthocytosis with motor symptoms resistant to medical treatment. Chorea was significantly improved following low-frequency DBS treatment in both patients. However, dystonia was only mildly improved. Four chorea-acanthocytosis patients treated with DBS treatment have been reported in the literature. One patient had improvement with low-frequency DBS stimulation, while another two had improvement with higher-frequency DBS. One patient, however, did not improve with either low-frequency or high-frequency DBS. Bilateral DBS to the GPi can improve chorea and dystonia in some patients with intractable chorea-acanthocytosis. However, selection criteria for the most promising candidates must be defined, and the long-term benefits evaluated in clinical studies.
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Li, P., Huang, R., Song, W. et al. Deep brain stimulation of the globus pallidus internal improves symptoms of chorea-acanthocytosis. Neurol Sci 33, 269–274 (2012). https://doi.org/10.1007/s10072-011-0741-y
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DOI: https://doi.org/10.1007/s10072-011-0741-y