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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ftdoajarticles:oai:doaj.org/article:320c4921c78f4e9380b5cc53ba1b35af 2023-05-15T16:10:22+02:00 Involuntary Thumb Flexion on Neurological Examination: An Unusual Form of Upper Limb Dystonia in the Faroe Islands Christine Y. Kim Maria Skaalum Petersen Eina H. Eliasen Giovanni Defazio Paul Greene Hyder A. Jinnah Marina A.J. Tijssen Elan D. Louis 2019-08-01T00:00:00Z https://doi.org/10.7916/tohm.v0.686 https://doaj.org/article/320c4921c78f4e9380b5cc53ba1b35af EN eng Ubiquity Press https://tremorjournal.org/index.php/tremor/article/view/649/2369 https://doaj.org/toc/2160-8288 2160-8288 doi:10.7916/tohm.v0.686 https://doaj.org/article/320c4921c78f4e9380b5cc53ba1b35af Tremor and Other Hyperkinetic Movements, Vol 9, Iss 0, Pp 1-7 (2019) Dystonia focal dystonia Faroe Islands thumb flexion phenomenology Diseases of the musculoskeletal system RC925-935 Neurology. Diseases of the nervous system RC346-429 article 2019 ftdoajarticles https://doi.org/10.7916/tohm.v0.686 2022-12-31T16:24:59Z 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 Directory of Open Access Journals: DOAJ Articles Faroe Islands Thumb ENVELOPE(-64.259,-64.259,-65.247,-65.247) |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Dystonia focal dystonia Faroe Islands thumb flexion phenomenology Diseases of the musculoskeletal system RC925-935 Neurology. Diseases of the nervous system RC346-429 |
spellingShingle |
Dystonia focal dystonia Faroe Islands thumb flexion phenomenology Diseases of the musculoskeletal system RC925-935 Neurology. Diseases of the nervous system RC346-429 Christine Y. Kim Maria Skaalum Petersen Eina H. Eliasen Giovanni Defazio Paul Greene Hyder A. Jinnah Marina A.J. Tijssen Elan D. Louis 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 Diseases of the musculoskeletal system RC925-935 Neurology. Diseases of the nervous system RC346-429 |
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 |
Christine Y. Kim Maria Skaalum Petersen Eina H. Eliasen Giovanni Defazio Paul Greene Hyder A. Jinnah Marina A.J. Tijssen Elan D. Louis |
author_facet |
Christine Y. Kim Maria Skaalum Petersen Eina H. Eliasen Giovanni Defazio Paul Greene Hyder A. Jinnah Marina A.J. Tijssen Elan D. Louis |
author_sort |
Christine Y. Kim |
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 |
publishDate |
2019 |
url |
https://doi.org/10.7916/tohm.v0.686 https://doaj.org/article/320c4921c78f4e9380b5cc53ba1b35af |
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, Iss 0, Pp 1-7 (2019) |
op_relation |
https://tremorjournal.org/index.php/tremor/article/view/649/2369 https://doaj.org/toc/2160-8288 2160-8288 doi:10.7916/tohm.v0.686 https://doaj.org/article/320c4921c78f4e9380b5cc53ba1b35af |
op_doi |
https://doi.org/10.7916/tohm.v0.686 |
_version_ |
1765995577659621376 |