- Successful Pallidal Stimulation in a Patient with KMT2B-Related Dystonia
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Jun Kyu Mun, Ah Reum Kim, Jong Hyeon Ahn, Minkyeong Kim, Jin Whan Cho, Jung-Il Lee, Kyung Rae Cho, Jinyoung Youn
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J Mov Disord. 2020;13(2):154-158. Published online April 6, 2020
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DOI: https://doi.org/10.14802/jmd.19087
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- Although the KMT2B gene was identified as a causative gene for early-onset generalized dystonia, the efficacy of deep brain stimulation (DBS) in KMT2B-related dystonia has not been clearly elucidated. Here, we describe a 28-year-old woman who developed generalized dystonia with developmental delay, microcephaly, short stature, and cognitive decline. She was diagnosed with KMT2B- related dystonia using whole-exome sequencing with a heterozygous frameshift insertion of c.515dupC (p.T172fs) in the KMT2B gene. Oral medications and botulinum toxin injection were not effective. The dystonia markedly improved with bilateral pallidal DBS (the Burke-Fahn-Marsden Dystonia Rating Scale score was reduced from 30 to 5 on the dystonia movement scale and from 11 to 1 on the disability scale), and she could walk independently. From this case, we suggest that bilateral globus pallidus internus DBS can be an effective treatment option for patients with KMT2B-related generalized dystonia.
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Citations
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- The role of genetics in the treatment of dystonia with deep brain stimulation: Systematic review and Meta-analysis
Harini Sarva, Federico Rodriguez-Porcel, Francisco Rivera, Claudio Daniel Gonzalez, Samantha Barkan, Susmit Tripathi, Emilia Gatto, Pedro Garcia Ruiz Journal of the Neurological Sciences.2024; 459: 122970. CrossRef - GPi DBS treatment outcome in children with monogenic dystonia: a case series and review of the literature
Darko Chudy, Marina Raguž, Vladimira Vuletić, Valentino Rački, Eliša Papić, Nataša Nenadić Baranašić, Nina Barišić Frontiers in Neurology.2023;[Epub] CrossRef - KMT2B-Related Dystonia in Indian Patients With Literature Review and Emphasis on Asian Cohort
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Priyanka Dey Talukdar, Urmi Chatterji Signal Transduction and Targeted Therapy.2023;[Epub] CrossRef - GPi‐DBS for KMT2B‐Associated Dystonia: Systematic Review and Meta‐Analysis
Roopa Rajan, Kanwaljeet Garg, Arti Saini, Divya M. Radhakrishnan, Miryam Carecchio, Binukumar BK, Manmohan Singh, Achal K. Srivastava Movement Disorders Clinical Practice.2022; 9(1): 31. CrossRef - Dystonic Tremor in Adult-onset DYT-KMT2B
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Laura Cif, Diane Demailly, Jean-Pierre Lin, Katy E Barwick, Mario Sa, Lucia Abela, Sony Malhotra, Wui K Chong, Dora Steel, Alba Sanchis-Juan, Adeline Ngoh, Natalie Trump, Esther Meyer, Xavier Vasques, Julia Rankin, Meredith W Allain, Carolyn D Applegate, Brain.2020; 143(11): 3242. CrossRef
- The Effect of Globus Pallidus Interna Deep Brain Stimulation on a Dystonia Patient with the GNAL Mutation Compared to Patients with DYT1 and DYT6
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Jong Hyeon Ahn, Ah Reum Kim, Nayoung K. D. Kim, Woong-Yang Park, Ji Sun Kim, Minkyeong Kim, Jongkyu Park, Jung-Il Lee, Jin Whan Cho, Kyung Rae Cho, Jinyoung Youn
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J Mov Disord. 2019;12(2):120-124. Published online May 30, 2019
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DOI: https://doi.org/10.14802/jmd.19006
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- Objective
The aim of this study was to investigate the efficacy of globus pallidus interna deep brain stimulation (GPi-DBS) for treating dystonia due to the GNAL mutation.
Methods We provide the first report of a dystonia patient with a genetically confirmed GNAL mutation in the Korean population and reviewed the literature on patients with the GNAL mutation who underwent GPi-DBS. We compared the effectiveness of DBS in patients with the GNAL mutation compared to that in patients with DYT1 and DYT6 in a previous study.
Results Patients with the GNAL mutation and those with DYT1 had higher early responder rates (GNAL, 5/5, 100%; DYT1, 7/7, 100%) than did patients with DYT6 (p = 0.047). The responder rates at late follow-up did not differ statistically among the three groups (p = 0.278). The decrease in the dystonia motor scale score in the GNAL group was 46.9% at early follow-up and 63.4% at late follow-up.
Conclusion GPi-DBS would be an effective treatment option for dystonia patients with the GNAL mutation who are resistant to medication or botulinum toxin treatment.
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Citations
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- The role of genetics in the treatment of dystonia with deep brain stimulation: Systematic review and Meta-analysis
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Han-Joon Kim, Beomseok Jeon Journal of Neural Transmission.2021; 128(4): 539. CrossRef - The Efficacy and Predictors of Using GPi-DBS to Treat Early-Onset Dystonia: An Individual Patient Analysis
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- The Current Status of Deep Brain Stimulation for the Treatment of Parkinson Disease in the Republic of Korea
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Jung-Il Lee
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J Mov Disord. 2015;8(3):115-121. Published online September 10, 2015
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DOI: https://doi.org/10.14802/jmd.15043
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- Parkinson disease (PD) is a common neurodegenerative disease with an increasing prevalence in Korea. Deep brain stimulation (DBS) is a safe and effective surgical treatment option for this disease. The aim of this review was to provide an update regarding current DBS practices with respect to the treatment of PD in the Republic of Korea. The first DBS in Korea was performed in 2000; approximately 2,000 patients have undergone DBS for a variety of neurological disorders, the majority of whom were patients with PD. Approximately 150 new patients with PD receive DBS annually, and more than 20 centers perform DBS. However, DBS remains underutilized for many reasons, and the clinical case burden at many institutions is below the level presumed adequate for qualified practice. With a rapidly aging population and an evolving socioeconomic environment, the need for surgical intervention for PD is likely to increase significantly in the future. Many issues such as finances, education, and quality assurance must be resolved to cope with this need.
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