- Pallidus Stimulation for Chorea-Acanthocytosis: A Systematic Review and Meta-Analysis of Individual Data
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Weibin He, Chenhui Li, Hongjuan Dong, Lingmin Shao, Bo Yin, Dianyou Li, Liguo Ye, Ping Hu, Chencheng Zhang, Wei Yi
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J Mov Disord. 2022;15(3):197-205. Published online July 26, 2022
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DOI: https://doi.org/10.14802/jmd.22003
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- A significant proportion of patients with chorea-acanthocytosis (ChAc) fail to respond to standard therapies. Recent evidence suggests that globus pallidus internus (GPi) deep brain stimulation (DBS) is a promising treatment option; however, reports are few and limited by sample sizes. We conducted a systematic literature review to evaluate the clinical outcome of GPi-DBS for ChAc. PubMed, Embase, and Cochrane Library databases were searched for relevant articles published before August 2021. The improvement of multiple motor and nonmotor symptoms was qualitatively presented. Improvements in the Unified Huntington’s Disease Rating Scale motor score (UHDRS-MS) were also analyzed during different follow-up periods. A multivariate linear regression analysis was conducted to identify potential predictors of clinical outcomes. Twenty articles, including 27 patients, were eligible. Ninety-six percent of patients with oromandibular dystonia reported significant improvement. GPi-DBS significantly improved the UHDRS-motor score at < 6 months (p < 0.001) and ≥ 6 months (p < 0.001). The UHDRS-motor score improvement rate was over 25% in 75% (15/20 cases) of patients at long-term follow-up (≥ 6 months). The multiple linear regression analysis showed that sex, age at onset, course of disease, and preoperative movement score had no linear relationship with motor improvement at long-term follow-up (p > 0.05). GPi-DBS is an effective and safe treatment in most patients with ChAc, but no reliable predictor of efficacy has been found. Oromandibular dystonia-dominant patients might be the best candidates for GPi-DBS.
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Citations
Citations to this article as recorded by  - Clinical neurophysiology in the treatment of movement disorders: IFCN handbook chapter
Jean-Pascal Lefaucheur, Elena Moro, Yuichiro Shirota, Yoshikazu Ugawa, Talyta Grippe, Robert Chen, David H Benninger, Bahman Jabbari, Sanaz Attaripour, Mark Hallett, Walter Paulus
Clinical Neurophysiology.2024; 164: 57. CrossRef
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