Involuntary Thumb Flexion on Neurological Examination: An Unusual Form of Upper Limb Dystonia in the Faroe Islands
Background: The prevalence of dystonia varies worldwide. A prior report suggested a high prevalence of focal dystonia in the Faroese population, possibly reflecting a founder effect. During standardized neurological examination as part of an ongoing neuroepidemiologic study in the Faroe Islands, we...
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ftjtremor:oai:ojs.pkp.sfu.ca:article/460 2023-06-11T04:11:35+02:00 Involuntary Thumb Flexion on Neurological Examination: An Unusual Form of Upper Limb Dystonia in the Faroe Islands Kim, Christine Y. Petersen, Maria Skaalum Eliasen, Eina H. Defazio, Giovanni Greene, Paul Jinnah, Hyder A. Tijssen, Marina A.J. Louis, Elan D. application/pdf application/epub+zip application/xml https://account.tremorjournal.org/index.php/up-j-tohm/article/view/460 https://doi.org/10.5334/tohm.460 eng eng Ubiquity Press https://account.tremorjournal.org/index.php/up-j-tohm/article/view/460/749 https://account.tremorjournal.org/index.php/up-j-tohm/article/view/460/828 https://account.tremorjournal.org/index.php/up-j-tohm/article/view/460/1308 https://account.tremorjournal.org/index.php/up-j-tohm/article/view/460 doi:10.5334/tohm.460 Copyright (c) 2019 The Author(s) Tremor and Other Hyperkinetic Movements; Vol. 9 (2019) 2160-8288 Dystonia focal dystonia Faroe Islands thumb flexion phenomenology info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion ftjtremor https://doi.org/10.5334/tohm.460 2023-05-04T19:58:16Z Background: The prevalence of dystonia varies worldwide. A prior report suggested a high prevalence of focal dystonia in the Faroese population, possibly reflecting a founder effect. During standardized neurological examination as part of an ongoing neuroepidemiologic study in the Faroe Islands, we noted an unusual phenomenon of thumb flexion during repetitive hand movements in a subset of subjects and sought to define its phenomenology.Methods: We requested commentary from a panel of dystonia experts regarding the phenomenology of the movements. These experts reviewed the videotaped neurological examination.Results: Among the experts, dystonia was the leading diagnosis. Alternate causes were considered, but deemed less likely.Discussion: Diagnosis of dystonia requires careful clinical assessment and consideration of associated features. We report a novel form of dystonia, not previously described to our knowledge, in this isolated population. Further studies of dystonia prevalence in the Faroe Islands are merited to characterize its burden in this population and its specific clinical characteristics. Article in Journal/Newspaper Faroe Islands Tremor and Other Hyperkinetic Movements (TOHM - E-Journal) Faroe Islands Thumb ENVELOPE(-64.259,-64.259,-65.247,-65.247) Tremor and Other Hyperkinetic Movements 9 0 |
institution |
Open Polar |
collection |
Tremor and Other Hyperkinetic Movements (TOHM - E-Journal) |
op_collection_id |
ftjtremor |
language |
English |
topic |
Dystonia focal dystonia Faroe Islands thumb flexion phenomenology |
spellingShingle |
Dystonia focal dystonia Faroe Islands thumb flexion phenomenology Kim, Christine Y. Petersen, Maria Skaalum Eliasen, Eina H. Defazio, Giovanni Greene, Paul Jinnah, Hyder A. Tijssen, Marina A.J. Louis, Elan D. Involuntary Thumb Flexion on Neurological Examination: An Unusual Form of Upper Limb Dystonia in the Faroe Islands |
topic_facet |
Dystonia focal dystonia Faroe Islands thumb flexion phenomenology |
description |
Background: The prevalence of dystonia varies worldwide. A prior report suggested a high prevalence of focal dystonia in the Faroese population, possibly reflecting a founder effect. During standardized neurological examination as part of an ongoing neuroepidemiologic study in the Faroe Islands, we noted an unusual phenomenon of thumb flexion during repetitive hand movements in a subset of subjects and sought to define its phenomenology.Methods: We requested commentary from a panel of dystonia experts regarding the phenomenology of the movements. These experts reviewed the videotaped neurological examination.Results: Among the experts, dystonia was the leading diagnosis. Alternate causes were considered, but deemed less likely.Discussion: Diagnosis of dystonia requires careful clinical assessment and consideration of associated features. We report a novel form of dystonia, not previously described to our knowledge, in this isolated population. Further studies of dystonia prevalence in the Faroe Islands are merited to characterize its burden in this population and its specific clinical characteristics. |
format |
Article in Journal/Newspaper |
author |
Kim, Christine Y. Petersen, Maria Skaalum Eliasen, Eina H. Defazio, Giovanni Greene, Paul Jinnah, Hyder A. Tijssen, Marina A.J. Louis, Elan D. |
author_facet |
Kim, Christine Y. Petersen, Maria Skaalum Eliasen, Eina H. Defazio, Giovanni Greene, Paul Jinnah, Hyder A. Tijssen, Marina A.J. Louis, Elan D. |
author_sort |
Kim, Christine Y. |
title |
Involuntary Thumb Flexion on Neurological Examination: An Unusual Form of Upper Limb Dystonia in the Faroe Islands |
title_short |
Involuntary Thumb Flexion on Neurological Examination: An Unusual Form of Upper Limb Dystonia in the Faroe Islands |
title_full |
Involuntary Thumb Flexion on Neurological Examination: An Unusual Form of Upper Limb Dystonia in the Faroe Islands |
title_fullStr |
Involuntary Thumb Flexion on Neurological Examination: An Unusual Form of Upper Limb Dystonia in the Faroe Islands |
title_full_unstemmed |
Involuntary Thumb Flexion on Neurological Examination: An Unusual Form of Upper Limb Dystonia in the Faroe Islands |
title_sort |
involuntary thumb flexion on neurological examination: an unusual form of upper limb dystonia in the faroe islands |
publisher |
Ubiquity Press |
url |
https://account.tremorjournal.org/index.php/up-j-tohm/article/view/460 https://doi.org/10.5334/tohm.460 |
long_lat |
ENVELOPE(-64.259,-64.259,-65.247,-65.247) |
geographic |
Faroe Islands Thumb |
geographic_facet |
Faroe Islands Thumb |
genre |
Faroe Islands |
genre_facet |
Faroe Islands |
op_source |
Tremor and Other Hyperkinetic Movements; Vol. 9 (2019) 2160-8288 |
op_relation |
https://account.tremorjournal.org/index.php/up-j-tohm/article/view/460/749 https://account.tremorjournal.org/index.php/up-j-tohm/article/view/460/828 https://account.tremorjournal.org/index.php/up-j-tohm/article/view/460/1308 https://account.tremorjournal.org/index.php/up-j-tohm/article/view/460 doi:10.5334/tohm.460 |
op_rights |
Copyright (c) 2019 The Author(s) |
op_doi |
https://doi.org/10.5334/tohm.460 |
container_title |
Tremor and Other Hyperkinetic Movements |
container_volume |
9 |
container_issue |
0 |
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1768386760979513344 |