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Eye movement abnormalities in essential tremor

Essential tremor (ET) is the most prevalent movement disorder, characterized mainly by an action tremor of the arms. Only a few studies published as yet have assessed oculomotor abnormalities in ET and their results are unequivocal. The aim of this study was to assess the oculomotor abnormalities in...

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Autores principales: Wójcik-Pędziwiatr, Magdalena, Plinta, Klaudia, Krzak-Kubica, Agnieszka, Zajdel, Katarzyna, Falkiewicz, Marcel, Dylak, Jacek, Ober, Jan, Szczudlik, Andrzej, Rudzińska, Monika
Formato: Online Artículo Texto
Lenguaje:English
Publicado: De Gruyter 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5260517/
https://www.ncbi.nlm.nih.gov/pubmed/28149393
http://dx.doi.org/10.1515/hukin-2015-0193
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author Wójcik-Pędziwiatr, Magdalena
Plinta, Klaudia
Krzak-Kubica, Agnieszka
Zajdel, Katarzyna
Falkiewicz, Marcel
Dylak, Jacek
Ober, Jan
Szczudlik, Andrzej
Rudzińska, Monika
author_facet Wójcik-Pędziwiatr, Magdalena
Plinta, Klaudia
Krzak-Kubica, Agnieszka
Zajdel, Katarzyna
Falkiewicz, Marcel
Dylak, Jacek
Ober, Jan
Szczudlik, Andrzej
Rudzińska, Monika
author_sort Wójcik-Pędziwiatr, Magdalena
collection PubMed
description Essential tremor (ET) is the most prevalent movement disorder, characterized mainly by an action tremor of the arms. Only a few studies published as yet have assessed oculomotor abnormalities in ET and their results are unequivocal. The aim of this study was to assess the oculomotor abnormalities in ET patients compared with the control group and to find the relationship between oculomotor abnormalities and clinical features of ET patients. We studied 50 ET patients and 42 matched by age and gender healthy controls. Saccadometer Advanced (Ober Consulting, Poland) was used to investigate reflexive, pace-induced and cued saccades and conventional electrooculography for evaluation of smooth pursuit and fixation. The severity of the tremor was assessed by the Clinical Rating Scale for Tremor. Significant differences between ET patients and controls were found for the incidence of reflexive saccades dysmetria and deficit of smooth pursuit. Reflexive saccades dysmetria was more frequent in patients in the second and third phase of ET compared to the first phase. The reflexive saccades latency increase was correlated with severity of the tremor. In conclusion, oculomotor abnormalities were significantly more common in ET patients than in healthy subjects. The most common oculomotor disturbances in ET were reflexive saccades dysmetria and slowing of smooth pursuit. The frequency of reflexive saccades dysmetria increased with progression of ET. The reflexive saccades latency increase was related to the severity of tremor.
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spelling pubmed-52605172017-02-01 Eye movement abnormalities in essential tremor Wójcik-Pędziwiatr, Magdalena Plinta, Klaudia Krzak-Kubica, Agnieszka Zajdel, Katarzyna Falkiewicz, Marcel Dylak, Jacek Ober, Jan Szczudlik, Andrzej Rudzińska, Monika J Hum Kinet Research Article Essential tremor (ET) is the most prevalent movement disorder, characterized mainly by an action tremor of the arms. Only a few studies published as yet have assessed oculomotor abnormalities in ET and their results are unequivocal. The aim of this study was to assess the oculomotor abnormalities in ET patients compared with the control group and to find the relationship between oculomotor abnormalities and clinical features of ET patients. We studied 50 ET patients and 42 matched by age and gender healthy controls. Saccadometer Advanced (Ober Consulting, Poland) was used to investigate reflexive, pace-induced and cued saccades and conventional electrooculography for evaluation of smooth pursuit and fixation. The severity of the tremor was assessed by the Clinical Rating Scale for Tremor. Significant differences between ET patients and controls were found for the incidence of reflexive saccades dysmetria and deficit of smooth pursuit. Reflexive saccades dysmetria was more frequent in patients in the second and third phase of ET compared to the first phase. The reflexive saccades latency increase was correlated with severity of the tremor. In conclusion, oculomotor abnormalities were significantly more common in ET patients than in healthy subjects. The most common oculomotor disturbances in ET were reflexive saccades dysmetria and slowing of smooth pursuit. The frequency of reflexive saccades dysmetria increased with progression of ET. The reflexive saccades latency increase was related to the severity of tremor. De Gruyter 2016-09-10 /pmc/articles/PMC5260517/ /pubmed/28149393 http://dx.doi.org/10.1515/hukin-2015-0193 Text en © Editorial Committee of Journal of Human Kinetics
spellingShingle Research Article
Wójcik-Pędziwiatr, Magdalena
Plinta, Klaudia
Krzak-Kubica, Agnieszka
Zajdel, Katarzyna
Falkiewicz, Marcel
Dylak, Jacek
Ober, Jan
Szczudlik, Andrzej
Rudzińska, Monika
Eye movement abnormalities in essential tremor
title Eye movement abnormalities in essential tremor
title_full Eye movement abnormalities in essential tremor
title_fullStr Eye movement abnormalities in essential tremor
title_full_unstemmed Eye movement abnormalities in essential tremor
title_short Eye movement abnormalities in essential tremor
title_sort eye movement abnormalities in essential tremor
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5260517/
https://www.ncbi.nlm.nih.gov/pubmed/28149393
http://dx.doi.org/10.1515/hukin-2015-0193
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