Journal of Movement Disorders

Myung Jun Lee

4 Articles

Trends in Physiotherapy Interventions and Medical Costs for Parkinson’s Disease in South Korea, 2011–2020: Dong-Woo Ryu, Jinse Park, Myung Jun Lee, Dallah Yoo, Sang-Myung Cheon; J Mov Disord. 2024;17(3):270-281. Published online March 19, 2024; DOI: https://doi.org/10.14802/jmd.23269

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Abstract PDF Supplementary Material: Objective
Physiotherapy (PT), which is an effective strategy for managing Parkinson’s disease (PD), can influence health care utilization. We analyzed trends in health care utilization, PT interventions, and medical costs among patients with PD.
Methods
Using data from the Korean National Health Insurance Service from 2011 to 2020, we analyzed the number of patients with PD and their health care utilization and assessed the odds ratio (OR) for receiving regular PTs.
Results
Over 10 years, 169,613 patients with PD were included in the analysis. The number of patients with PD increased annually from 49,417 in 2011 to 91,841 in 2020. The number of patients with PD receiving PT increased from 4,847 (9.81%) in 2011 to 13,163 (14.33%) in 2020, and the number of PT prescriptions increased from 81,220 in 2011 to 377,651 in 2019. Medical costs per patient with PD increased from 1,686 United States dollars (USD) in 2011 to 3,202 USD in 2020. The medical expenses for each patient with PD receiving PT increased from 6,582 USD in 2011 to 13,475 USD in 2020. Moreover, regular PTs were administered to 31,782 patients (18.74%) and were administered only through hospitalization. Those patients in their 50s with disabilities demonstrated a high OR for regular PTs, whereas those aged 80 years or older and residing outside of Seoul had a low OR.
Conclusion
The PD burden increased in South Korea between 2011 and 2020, as did health care utilization and medical costs. A significant increase in medical expenses can be associated with increased PD incidence and PT interventions. Regular PT applications remain restricted and have barriers to access.

The Frequency of Korean Patients With Parkinson’s Disease Carrying GBA Mutations in a Subgroup With Age at Onset ≤ 55 Years Old: Jin Hwangbo, Myung Jun Lee, Sang Jin Kim, Jae‑Hyeok Lee; J Mov Disord. 2023;16(2):207-209. Published online March 7, 2023; DOI: https://doi.org/10.14802/jmd.22191

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Clinicogenetic Characterization of Patients with PD and Heterozygous GBA1 Variants in an Indian Cohort
Sneha D Kamath, Vikram V. Holla, Prashant Phulpagar, Nitish Kamble, Ravi Yadav, Babylakshmi Muthusamy, Pramod Kumar Pal
Movement Disorders.2024; 39(3): 628. CrossRef

Clinical Heterogeneity of Atypical Pantothenate Kinase-Associated Neurodegeneration in Koreans: Jae-Hyeok Lee, Jongkyu Park, Ho-Sung Ryu, Hyeyoung Park, Young Eun Kim, Jin Yong Hong, Sang Ook Nam, Young-Hee Sung, Seung-Hwan Lee, Jee-Young Lee, Myung Jun Lee, Tae-Hyoung Kim, Chul Hyoung Lyoo, Sun Ju Chung, Seong Beom Koh, Phil Hyu Lee, Jin Whan Cho, Mee Young Park, Yun Joong Kim, Young H. Sohn, Beom Seok Jeon, Myung Sik Lee; J Mov Disord. 2016;9(1):20-27. Published online January 25, 2016; DOI: https://doi.org/10.14802/jmd.15058

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Abstract PDF Supplementary Material

Objective
Neurodegeneration with brain iron accumulation (NBIA) represents a group of inherited movement disorders characterized by iron accumulation in the basal ganglia. Recent advances have included the identification of new causative genes and highlighted the wide phenotypic variation between and within the specific NBIA subtypes. This study aimed to investigate the current status of NBIA in Korea.
Methods
We collected genetically confirmed NBIA patients from twelve nationwide referral hospitals and from a review of the literature. We conducted a study to describe the phenotypic and genotypic characteristics of Korean adults with atypical pantothenate kinase-associated neurodegeneration (PKAN).
Results
Four subtypes of NBIA including PKAN (n = 30), PLA2G6-related neurodegeneration (n = 2), beta-propeller protein-associated neurodegeneration (n = 1), and aceruloplasminemia (n = 1) have been identified in the Korean population. The clinical features of fifteen adults with atypical PKAN included early focal limb dystonia, parkinsonism-predominant feature, oromandibular dystonia, and isolated freezing of gait (FOG). Patients with a higher age of onset tended to present with parkinsonism and FOG. The p.R440P and p.D378G mutations are two major mutations that represent approximately 50% of the mutated alleles. Although there were no specific genotype-phenotype correlations, most patients carrying the p.D378G mutation had a late-onset, atypical form of PKAN.
Conclusions
We found considerable phenotypic heterogeneity in Korean adults with atypical PKAN. The age of onset may influence the presentation of extrapyramidal symptoms.

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Typical pantothenate kinase-associated neurodegeneration caused by compound heterozygous mutations in PANK2 gene in a Chinese patient: a case report and literature review
Yilun Tao, Chen Zhao, Dong Han, Yiju Wei, Lihong Wang, Wenxia Song, Xiaoze Li
Frontiers in Neurology.2023;[Epub] CrossRef
The first Vietnamese patient who presented late onset of pantothenate kinase-associated neurodegeneration diagnosed by whole exome sequencing: A case report
Van Khanh Tran, Chi Dung Vu, Hai Anh Tran, Nguyen Thi Kim Lien, Nguyen Van Tung, Nguyen Ngoc Lan, Huy Thinh Tran, Nguyen Huy Hoang
Medicine.2023; 102(43): e34853. CrossRef
Genetic mutation spectrum of pantothenate kinase-associated neurodegeneration expanded by breakpoint sequencing in pantothenate kinase 2 gene
Dahae Yang, Sanghyun Cho, Sung Im Cho, Manjin Kim, Moon-Woo Seong, Sung Sup Park
Orphanet Journal of Rare Diseases.2022;[Epub] CrossRef
Long-Term Outcomes of Deep Brain Stimulation in Pantothenate Kinase-Associated Neurodegeneration-Related Dystonia
Kyung Ah Woo, Han-Joon Kim, Seung-Ho Jeon, Hye Ran Park, Kye Won Park, Seung Hyun Lee, Sun Ju Chung, Jong-Hee Chae, Sun Ha Paek, Beomseok Jeon
Journal of Movement Disorders.2022; 15(3): 241. CrossRef
Psychiatric symptoms in an adolescent reveal a novel compound heterozygous mutation of the PANK2 gene in the atypical PKAN syndrome
Luz María González Huerta, Sorina Gómez González, Jaime Toral López
Psychiatric Genetics.2021; 31(3): 95. CrossRef
Rational Design of Novel Therapies for Pantothenate Kinase–Associated Neurodegeneration
Nivedita Thakur, Thomas Klopstock, Suzanne Jackowski, Enej Kuscer, Fernando Tricta, Aleksandar Videnovic, Hyder A. Jinnah
Movement Disorders.2021; 36(9): 2005. CrossRef
Atypical Pantothenate Kinase-Associated Neurodegeneration with variable phenotypes in an Egyptian family
Ali S. Shalash, Thomas W. Rösler, Ibrahim Y. Abdelrahman, Hatem S. Abulmakarem, Stefanie H. Müller, Franziska Hopfner, Gregor Kuhlenbäumer, Günter U. Höglinger, Mohamed Salama
Heliyon.2021; : e07469. CrossRef
Treatment Responsiveness of Parkinsonism in Atypical Pantothenate Kinase‐Associated Neurodegeneration
Jeanne Feuerstein, Caroline Olvera, Michelle Fullard
Movement Disorders Clinical Practice.2020;[Epub] CrossRef
Diagnostic and clinical experience of patients with pantothenate kinase-associated neurodegeneration
Randall D. Marshall, Abigail Collins, Maria L. Escolar, H. A. Jinnah, Thomas Klopstock, Michael C. Kruer, Aleksandar Videnovic, Amy Robichaux-Viehoever, Colleen Burns, Laura L. Swett, Dennis A. Revicki, Randall H. Bender, William R. Lenderking
Orphanet Journal of Rare Diseases.2019;[Epub] CrossRef
Intrafamilial variability and clinical heterogeneity in a family with PLA2G6-associated neurodegeneration
Jong Kyu Park, Jinyoung Youn, Jin Whan Cho
Precision and Future Medicine.2019; 3(3): 135. CrossRef
On the complexity of clinical and molecular bases of neurodegeneration with brain iron accumulation
C. Tello, A. Darling, V. Lupo, B. Pérez‐Dueñas, C. Espinós
Clinical Genetics.2018; 93(4): 731. CrossRef
Looking Deep into the Eye-of-the-Tiger in Pantothenate Kinase–Associated Neurodegeneration
J.-H. Lee, A. Gregory, P. Hogarth, C. Rogers, S.J. Hayflick
American Journal of Neuroradiology.2018; 39(3): 583. CrossRef
Parkinson’s Disease and Metal Storage Disorders: A Systematic Review
Edward Botsford, Jayan George, Ellen Buckley
Brain Sciences.2018; 8(11): 194. CrossRef
Atypical pantothenate kinase-associated neurodegeneration: Clinical description of two brothers and a review of the literature
S. Mahoui, A. Benhaddadi, W. Ameur El Khedoud, M. Abada Bendib, M. Chaouch
Revue Neurologique.2017; 173(10): 658. CrossRef
Clinical rating scale for pantothenate kinase‐associated neurodegeneration: A pilot study
Alejandra Darling, Cristina Tello, María Josep Martí, Cristina Garrido, Sergio Aguilera‐Albesa, Miguel Tomás Vila, Itziar Gastón, Marcos Madruga, Luis González Gutiérrez, Julio Ramos Lizana, Montserrat Pujol, Tania Gavilán Iglesias, Kylee Tustin, Jean Pie
Movement Disorders.2017; 32(11): 1620. CrossRef
Missions of <italic>Journal of Movement Disorders</italic>
Yun Joong Kim
Journal of Movement Disorders.2016; 9(1): 1. CrossRef

Neuroleptic Malignant Syndrome in a Patient with Corticobasal Degeneration: Myung Jun Lee, Chul Hyoung Lyoo, Myung Sik Lee; J Mov Disord. 2011;4(2):73-74.; DOI: https://doi.org/10.14802/jmd.11015

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Abstract PDF

Parkinson’s disease is a principal underlying disease of neuroleptic malignant syndrome (NMS) occurring in parkinsonian disorders, but NMS may occur in patients with progressive supranuclear palsy and multiple system atrophy. We report first patient with corticobasal degeneration (CBD) who developed NMS after abrupt reduction of antiparkinsonian medication and concurrent infection. It should be kept in mind that the prevention of infectious illness, which is common complication in parkinson-plus syndrome, is important, and dose reduction or withdrawal of anti-parkinsonian medications should be carefully performed even in the patients with CBD who are expected to be unresponsive to levodopa treatment.

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Diagnosis and Management of Progressive Corticobasal Syndrome
Claire Delpirou Nouh, Kyan Younes
Current Treatment Options in Neurology.2024; 26(7): 319. CrossRef

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