Unilateral Standing Leg Tremor as the Initial Manifestation of Parkinson Disease

Background: The aim of this study was to analyze the different forms of leg tremors exhibited while standing in patients with Parkinson disease (PD), and to determine if the type of leg tremor exhibited is indicative of prognosis or treatment response in PD patients. Methods: We studied the clinical...

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Main Authors: Suk Yun Kang, Sook-Keun Song, Jin-Soo Kim, Young Ho Sohn
Format: Article
Language:English
Published: Korean Movement Disorder Society 2009-05-01
Series:Journal of Movement Disorders
Subjects:
Online Access:http://e-jmd.org/upload/jmd-2-1-29-7.pdf
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author Suk Yun Kang
Sook-Keun Song
Jin-Soo Kim
Young Ho Sohn
author_facet Suk Yun Kang
Sook-Keun Song
Jin-Soo Kim
Young Ho Sohn
author_sort Suk Yun Kang
collection DOAJ
description Background: The aim of this study was to analyze the different forms of leg tremors exhibited while standing in patients with Parkinson disease (PD), and to determine if the type of leg tremor exhibited is indicative of prognosis or treatment response in PD patients. Methods: We studied the clinical characteristics of five PD patients (all women; mean age, 59 years, range, 53–64 years) with unilateral standing leg tremor as the initial manifestation of PD, including their electrophysiological findings and the results of long-term follow-up. Results: For each patient, parkinsonism either existed at the time of onset of the initial symptoms or developed later. Patient responses to drugs were generally good, but one patient showed a poor response to drugs, even though she had only a low frequency leg tremor. For two patients whom we could observe during the 10-year follow-up period, neither the leg tremor nor parkinsonism was aggravated. Conclusions: There are two forms of unilateral standing leg tremor in PD. One form is high frequency, similar to the primary orthostatic tremor. The other is low frequency and similar to the parkinsonian resting tremor. Based on these observations, it appears that progression might be slow if PD patients have standing leg tremor as the initial manifestation.
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spelling doaj.art-d071f56933474898b8288873a060ece02023-09-02T23:58:49ZengKorean Movement Disorder SocietyJournal of Movement Disorders2005-940X2093-49392009-05-0121293210.14802/jmd.0900782Unilateral Standing Leg Tremor as the Initial Manifestation of Parkinson DiseaseSuk Yun KangSook-Keun SongJin-Soo KimYoung Ho SohnBackground: The aim of this study was to analyze the different forms of leg tremors exhibited while standing in patients with Parkinson disease (PD), and to determine if the type of leg tremor exhibited is indicative of prognosis or treatment response in PD patients. Methods: We studied the clinical characteristics of five PD patients (all women; mean age, 59 years, range, 53–64 years) with unilateral standing leg tremor as the initial manifestation of PD, including their electrophysiological findings and the results of long-term follow-up. Results: For each patient, parkinsonism either existed at the time of onset of the initial symptoms or developed later. Patient responses to drugs were generally good, but one patient showed a poor response to drugs, even though she had only a low frequency leg tremor. For two patients whom we could observe during the 10-year follow-up period, neither the leg tremor nor parkinsonism was aggravated. Conclusions: There are two forms of unilateral standing leg tremor in PD. One form is high frequency, similar to the primary orthostatic tremor. The other is low frequency and similar to the parkinsonian resting tremor. Based on these observations, it appears that progression might be slow if PD patients have standing leg tremor as the initial manifestation.http://e-jmd.org/upload/jmd-2-1-29-7.pdfParkinson diseaseOrthostatic tremorElectromyographyLeg tremorPrognosis
spellingShingle Suk Yun Kang
Sook-Keun Song
Jin-Soo Kim
Young Ho Sohn
Unilateral Standing Leg Tremor as the Initial Manifestation of Parkinson Disease
Journal of Movement Disorders
Parkinson disease
Orthostatic tremor
Electromyography
Leg tremor
Prognosis
title Unilateral Standing Leg Tremor as the Initial Manifestation of Parkinson Disease
title_full Unilateral Standing Leg Tremor as the Initial Manifestation of Parkinson Disease
title_fullStr Unilateral Standing Leg Tremor as the Initial Manifestation of Parkinson Disease
title_full_unstemmed Unilateral Standing Leg Tremor as the Initial Manifestation of Parkinson Disease
title_short Unilateral Standing Leg Tremor as the Initial Manifestation of Parkinson Disease
title_sort unilateral standing leg tremor as the initial manifestation of parkinson disease
topic Parkinson disease
Orthostatic tremor
Electromyography
Leg tremor
Prognosis
url http://e-jmd.org/upload/jmd-2-1-29-7.pdf
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