Jaw Clonus: A Rhythmic Oscillatory Movement, but Not Tremor

BACKGROUND: Jaw clonus is rhythmic, oscillatory contraction of jaw muscles induced by stretch and is caused by lesions of the descending motor neurons in the corticopontine tracts. PHENOMENOLOGY SHOWN: We illustrate jaw clonus elicited with jaw activation and upon testing of the jaw jerk in a patien...

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Autores principales: Williams, Laura, Ryan, Marie, Kilbride, Ronan, Llamas-Osorio, Yudy
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Ubiquity Press 2020
Materias:
Video Abstract
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7528660/
https://www.ncbi.nlm.nih.gov/pubmed/33042635
http://dx.doi.org/10.5334/tohm.538
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author Williams, Laura
Ryan, Marie
Kilbride, Ronan
Llamas-Osorio, Yudy
author_facet Williams, Laura
Ryan, Marie
Kilbride, Ronan
Llamas-Osorio, Yudy
author_sort Williams, Laura
collection PubMed
description BACKGROUND: Jaw clonus is rhythmic, oscillatory contraction of jaw muscles induced by stretch and is caused by lesions of the descending motor neurons in the corticopontine tracts. PHENOMENOLOGY SHOWN: We illustrate jaw clonus elicited with jaw activation and upon testing of the jaw jerk in a patient with amyotrophic lateral sclerosis. EDUCATIONAL VALUE: This video clearly demonstrates the uncommon sign of jaw clonus, a finding which needs to be distinguished from tremor and should direct the examiner to consider lesions of the corticopontine fibres, including amyotrophic lateral sclerosis.
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spelling pubmed-75286602020-10-08 Jaw Clonus: A Rhythmic Oscillatory Movement, but Not Tremor Williams, Laura Ryan, Marie Kilbride, Ronan Llamas-Osorio, Yudy Tremor Other Hyperkinet Mov (N Y) Video Abstract BACKGROUND: Jaw clonus is rhythmic, oscillatory contraction of jaw muscles induced by stretch and is caused by lesions of the descending motor neurons in the corticopontine tracts. PHENOMENOLOGY SHOWN: We illustrate jaw clonus elicited with jaw activation and upon testing of the jaw jerk in a patient with amyotrophic lateral sclerosis. EDUCATIONAL VALUE: This video clearly demonstrates the uncommon sign of jaw clonus, a finding which needs to be distinguished from tremor and should direct the examiner to consider lesions of the corticopontine fibres, including amyotrophic lateral sclerosis. Ubiquity Press 2020-09-29 /pmc/articles/PMC7528660/ /pubmed/33042635 http://dx.doi.org/10.5334/tohm.538 Text en Copyright: © 2020 The Author(s) http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution 4.0 International License (CC-BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. See http://creativecommons.org/licenses/by/4.0/.
spellingShingle Video Abstract
Williams, Laura
Ryan, Marie
Kilbride, Ronan
Llamas-Osorio, Yudy
Jaw Clonus: A Rhythmic Oscillatory Movement, but Not Tremor
title Jaw Clonus: A Rhythmic Oscillatory Movement, but Not Tremor
title_full Jaw Clonus: A Rhythmic Oscillatory Movement, but Not Tremor
title_fullStr Jaw Clonus: A Rhythmic Oscillatory Movement, but Not Tremor
title_full_unstemmed Jaw Clonus: A Rhythmic Oscillatory Movement, but Not Tremor
title_short Jaw Clonus: A Rhythmic Oscillatory Movement, but Not Tremor
title_sort jaw clonus: a rhythmic oscillatory movement, but not tremor
topic Video Abstract
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7528660/
https://www.ncbi.nlm.nih.gov/pubmed/33042635
http://dx.doi.org/10.5334/tohm.538
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