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JMD : Journal of Movement Disorders


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Sung Jun Ahn 2 Articles
Asymmetric Parkinsonism With Progressive Nigrosomal Change Secondary to Kernohan’s Notch Phenomenon
Han-Kyeol Kim, Min Seok Baek, Sung Jun Ahn, Chul Hyoung Lyoo
J Mov Disord. 2022;15(2):184-186.   Published online March 16, 2022
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  • 112 Download
Clinical Features Indicating Nigrostriatal Dopaminergic Degeneration in Drug-Induced Parkinsonism
Seung Ha Lee, Han Kyeol Kim, Young Gun Lee, Chul Hyoung Lyoo, Sung Jun Ahn, Myung Sik Lee
J Mov Disord. 2017;10(1):35-39.   Published online December 27, 2016
  • 9,497 View
  • 157 Download
  • 8 Web of Science
  • 5 Crossref
AbstractAbstract PDFSupplementary Material
Patients with drug-induced parkinsonism (DIP) may have nigrostriatal dopaminergic degeneration. We studied the clinical features that may indicate nigrostriatal dopaminergic degeneration in patients with DIP.
Forty-one DIP patients were classified into normal and abnormal [18F] FP-CIT scan groups. Differences in 32 clinical features and drug withdrawal effects were studied.
Twenty-eight patients had normal (Group I) and 13 patients had abnormal (Group II) scans. Eight patients of Group I, but none of Group II, had taken calcium channel blockers (p = 0.040). Three patients of Group I and six of Group II had hyposmia (p = 0.018). After drug withdrawal, Group I showed greater improvement in Unified Parkinson’s Disease Rating Scale total motor scores and subscores for bradykinesia and tremors than Group II. Only hyposmia was an independent factor associated with abnormal scans, but it had suboptimal sensitivity.
None of the clinical features were practical indicators of nigrostriatal dopaminergic degeneration in patients with DIP.


Citations to this article as recorded by  
  • Comparative Olfactory Profiles in Parkinson’s Disease and Drug-Induced Parkinsonism
    In Hee Kwak, Young Eun Kim, Suk Yun Kang, Joong Seob Lee, Jeongjae Lee, Min Seung Kim, Dong A Yea, Hyeo-il Ma
    Journal of Movement Disorders.2024; 17(1): 64.     CrossRef
  • Retinal Thickness and Its Interocular Asymmetry Between Parkinson’s Disease and Drug-Induced Parkinsonism
    Wool Suh, Sung Uk Baek, Jungsu S. Oh, Seung Yeon Seo, Jae Seung Kim, You Mie Han, Min Seung Kim, Suk Yun Kang
    Journal of Korean Medical Science.2023;[Epub]     CrossRef
  • Gait abnormalities and non-motor symptoms predict abnormal dopaminergic imaging in presumed drug-induced Parkinsonism
    Whitley W. Aamodt, Jacob G. Dubroff, Gang Cheng, Betty Taylor, Stephanie Wood, John E. Duda, James F. Morley
    npj Parkinson's Disease.2022;[Epub]     CrossRef
  • Acute dopamine receptor blockade in substantia nigra pars reticulata: a possible model for drug-induced Parkinsonism
    Verónica Alejandra Cáceres-Chávez, Ricardo Hernández-Martínez, Jesús Pérez-Ortega, Marco Arieli Herrera-Valdez, Jose J. Aceves, Elvira Galarraga, José Bargas
    Journal of Neurophysiology.2018; 120(6): 2922.     CrossRef
  • Neuroimaging in Parkinson's disease: focus on substantia nigra and nigro-striatal projection
    Daniela Frosini, Mirco Cosottini, Duccio Volterrani, Roberto Ceravolo
    Current Opinion in Neurology.2017; 30(4): 416.     CrossRef

JMD : Journal of Movement Disorders