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Kim JG, Kim SH, Lee SU, Lee CN, Kim BJ, Kim JS, Park KW. Head-impulse tests aid in differentiation of multiple system atrophy from Parkinson's disease. J Neurol 2021; 269:2972-2979. [PMID: 34767067 DOI: 10.1007/s00415-021-10885-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Revised: 11/01/2021] [Accepted: 11/02/2021] [Indexed: 10/19/2022]
Abstract
The integrity of the vestibulo-ocular reflex (VOR) remains to be delineated in patients with parkinsonism. We aimed to define the findings of the VOR using head-impulse tests (HITs) and their differential diagnostic value in patients with Parkinson's disease (PD) and multiple system atrophy (MSA). From December 2019 to January 2021, 30 patients with PD and 23 patients with MSA (17 with cerebellar-type MSA and 6 with parkinsonian-type MSA) had a video-oculographic recording of HITs at two university hospitals in South Korea. Reversed (p = 0.034) and perverted (p = 0.015) catch-up saccades were more frequently observed in MSA than in PD during HITs. The gain difference between the ACs and the PCs were larger in MSA than in PD (p = 0.031), and positively correlated with the disease duration in patients with MSA (Spearman's coefficient = 0.512, p = 0.012). Multivariate logistic regression analysis showed that reversed (p = 0.044) and perverted (p = 0.039) catch-up saccades were more frequently associated with MSA than with PD during HITs. In conclusion, HITs aid in differentiation of MSA from PD, and may serve as a surrogate marker for the clinical decline.
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Affiliation(s)
- Jae-Gyum Kim
- Department of Neurology, Korea University Medical Center, 73 Goryeodae-ro, Seongbuk-gu, Seoul, 02841, South Korea
| | - Sung-Hwan Kim
- Department of Neurology, Korea University Medical Center, 73 Goryeodae-ro, Seongbuk-gu, Seoul, 02841, South Korea
| | - Sun-Uk Lee
- Department of Neurology, Korea University Medical Center, 73 Goryeodae-ro, Seongbuk-gu, Seoul, 02841, South Korea. .,Department of Neurology, Seoul National University College of Medicine, Seoul, South Korea.
| | - Chan-Nyoung Lee
- Department of Neurology, Korea University Medical Center, 73 Goryeodae-ro, Seongbuk-gu, Seoul, 02841, South Korea
| | - Byung-Jo Kim
- Department of Neurology, Korea University Medical Center, 73 Goryeodae-ro, Seongbuk-gu, Seoul, 02841, South Korea.,BK21 FOUR Program in Learning Health Systems, Korea University, Seoul, South Korea
| | - Ji-Soo Kim
- Department of Neurology, Seoul National University College of Medicine, Seoul, South Korea.,Dizziness Center, Seoul National University Bundang Hospital, Seongnam, South Korea
| | - Kun-Woo Park
- Department of Neurology, Korea University Medical Center, 73 Goryeodae-ro, Seongbuk-gu, Seoul, 02841, South Korea
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Jeong SH, Kim JS. Update on Nystagmus and Other Ocular Oscillations. J Clin Neurol 2021; 17:337-343. [PMID: 34184440 PMCID: PMC8242323 DOI: 10.3988/jcn.2021.17.3.337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Revised: 10/07/2020] [Accepted: 10/08/2020] [Indexed: 11/24/2022] Open
Abstract
This review reports on recent advances in understanding nystagmus and other involuntary eye movements. Advances in quantitative evaluations of eye movements using oculography, computational model simulations, genetics, and imaging technologies have markedly improved our understanding of the pathophysiology of involuntary eye movements, as well as their diagnosis and management. Patient-initiated capture of eye movements, especially when paroxysmal, and the online transfer of these data to clinicians would further enhance the ability to diagnose involuntary eye movements.
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Affiliation(s)
- Seong Hae Jeong
- Department of Neurology, Chungnam National University Hospital, Chungnam National University School of Medicine, Daejeon, Korea
| | - Ji Soo Kim
- Department of Neurology, Seoul National University College of Medicine, Seoul, Korea.,Dizziness Center, Clinical Neuroscience Center, Seoul National University Bundang Hospital, Seongnam, Korea.
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Rosa F, Grimm A, Ambjoernsen K, Pomper JK. A gaze-triggered downbeat nystagmus persisting in primary position in a patient with hypomagnesemia combined with anti-SOX1. J Neurol Sci 2020; 412:116732. [PMID: 32105977 DOI: 10.1016/j.jns.2020.116732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Revised: 01/19/2020] [Accepted: 02/11/2020] [Indexed: 11/27/2022]
Affiliation(s)
- Filip Rosa
- Department of Neurology and Epileptology, Clinic for Neurology and Hertie-Institute for Clinical Brain Research, University of Tübingen, Hoppe-Seyler Str. 3, 72076 Tübingen, Germany.
| | - Alexander Grimm
- Department of Neurology and Epileptology, Clinic for Neurology and Hertie-Institute for Clinical Brain Research, University of Tübingen, Hoppe-Seyler Str. 3, 72076 Tübingen, Germany
| | - Katja Ambjoernsen
- Department of Otorhinolaryngology-Head and Neck Surgery, University of Tübingen, Elfriede-Aulhorn-Str. 5, 72076 Tübingen, Germany; Tübingen Center for Dizziness and Balance Disorders, University of Tübingen, Elfriede-Aulhorn-Str. 5, 72076 Tübingen, Germany
| | - Jörn K Pomper
- Department of Cognitive Neurology, Clinic for Neurology and Hertie-Institute for Clinical Brain Research, University of Tübingen, Hoppe-Seyler Str. 3, 72076 Tübingen, Germany; Tübingen Center for Dizziness and Balance Disorders, University of Tübingen, Elfriede-Aulhorn-Str. 5, 72076 Tübingen, Germany.
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Lee SU, Kim JS, Kim HJ, Choi JY, Park JY, Kim JM, Yang X. Evolution of the vestibular function during head impulses in spinocerebellar ataxia type 6. J Neurol 2020; 267:1672-1678. [DOI: 10.1007/s00415-020-09756-w] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Revised: 02/06/2020] [Accepted: 02/08/2020] [Indexed: 12/19/2022]
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