Publicação
Origin of fasciculations in root lesions
| Resumo: | Objective: Fasciculations are occasionally observed in root lesions, but their site of origin is uncertain. Methods: We studied the origin of fasciculations (FPs) in consecutive patients with mild chronic L5 root lesions, excluding peripheral nerve lesion. We used a novel technique of double-EMG needle recording, in which each needle was placed in the territory of separate motor units. With this technique the observation of synchronous FPs implies an origin proximal to distal axonal branching. Results: FPs were found in 13% of 84 consecutive patients with mild chronic L5 root lesions. In 25% they were synchronous in different motor units. Conclusions: We suggest that in mild L5 root lesions most FPs have an origin at distal branches but some FPs originate proximally (25%), possibly at the site of nerve compression. Significance: The proximal site of compression and more distal sites may both initiate fasciculation potentials in proximal root lesions. |
|---|---|
| Autores principais: | Carvalho, Mamede |
| Outros Autores: | Swash, Michael |
| Assunto: | Fasciculation potentials Origin Reinnervation Root lesion |
| Ano: | 2016 |
| País: | Portugal |
| Tipo de documento: | artigo |
| Tipo de acesso: | acesso restrito |
| Instituição associada: | Universidade de Lisboa |
| Idioma: | inglês |
| Origem: | Repositório da Universidade de Lisboa |
| _version_ | 1865920815592112128 |
|---|---|
| author | Carvalho, Mamede |
| author2 | Swash, Michael |
| author2_role | author |
| author_facet | Carvalho, Mamede Carvalho, Mamede Swash, Michael Swash, Michael |
| author_role | author |
| contributor_name_str_mv | Repositório Científico de Acesso Aberto da ULisboa |
| country_str | PT |
| creators_json_str | [{\"Person.name\":\"Carvalho, Mamede\",\"Person.identifier.orcid\":\"0000-0001-7556-0158\"},{\"Person.name\":\"Swash, Michael\",\"Person.identifier.orcid\":\"0000-0002-8717-8914\"}] |
| datacite.contributors.contributor.contributorName.fl_str_mv | Repositório Científico de Acesso Aberto da ULisboa |
| datacite.creators.creator.creatorName.fl_str_mv | Carvalho, Mamede Swash, Michael |
| datacite.date.Accepted.fl_str_mv | 2016-01-01T00:00:00Z |
| datacite.date.available.fl_str_mv | 2022-06-21T14:51:11Z |
| datacite.date.embargoed.fl_str_mv | 2022-06-21T14:51:11Z |
| datacite.rights.fl_str_mv | http://purl.org/coar/access_right/c_16ec |
| datacite.subjects.subject.fl_str_mv | Fasciculation potentials Origin Reinnervation Root lesion |
| datacite.titles.title.fl_str_mv | Origin of fasciculations in root lesions |
| dc.contributor.none.fl_str_mv | Repositório Científico de Acesso Aberto da ULisboa |
| dc.creator.none.fl_str_mv | Carvalho, Mamede Swash, Michael |
| dc.date.Accepted.fl_str_mv | 2016-01-01T00:00:00Z |
| dc.date.available.fl_str_mv | 2022-06-21T14:51:11Z |
| dc.date.embargoed.fl_str_mv | 2022-06-21T14:51:11Z |
| dc.format.none.fl_str_mv | application/pdf |
| dc.identifier.none.fl_str_mv | http://hdl.handle.net/10451/53423 |
| dc.language.none.fl_str_mv | eng |
| dc.publisher.none.fl_str_mv | Elsevier |
| dc.rights.none.fl_str_mv | http://purl.org/coar/access_right/c_16ec |
| dc.subject.none.fl_str_mv | Fasciculation potentials Origin Reinnervation Root lesion |
| dc.title.fl_str_mv | Origin of fasciculations in root lesions |
| dc.type.none.fl_str_mv | http://purl.org/coar/resource_type/c_6501 |
| description | Objective: Fasciculations are occasionally observed in root lesions, but their site of origin is uncertain. Methods: We studied the origin of fasciculations (FPs) in consecutive patients with mild chronic L5 root lesions, excluding peripheral nerve lesion. We used a novel technique of double-EMG needle recording, in which each needle was placed in the territory of separate motor units. With this technique the observation of synchronous FPs implies an origin proximal to distal axonal branching. Results: FPs were found in 13% of 84 consecutive patients with mild chronic L5 root lesions. In 25% they were synchronous in different motor units. Conclusions: We suggest that in mild L5 root lesions most FPs have an origin at distal branches but some FPs originate proximally (25%), possibly at the site of nerve compression. Significance: The proximal site of compression and more distal sites may both initiate fasciculation potentials in proximal root lesions. |
| dirty | 0 |
| eu_rights_str_mv | restrictedAccess |
| format | article |
| fulltext.url.fl_str_mv | https://repositorio.ulisboa.pt/bitstreams/827f4f5f-c05e-4e42-87d4-066e25a85cb8/download |
| id | ul_8e03e2e2e157f35dfde2bdd4e78dd5f9 |
| identifier.url.fl_str_mv | http://hdl.handle.net/10451/53423 |
| instacron_str | ul |
| institution | Universidade de Lisboa |
| instname_str | Universidade de Lisboa |
| language | eng |
| network_acronym_str | ul |
| network_name_str | Repositório da Universidade de Lisboa |
| oai_identifier_str | oai:repositorio.ulisboa.pt:10451/53423 |
| organization_str_mv | urn:organizationAcronym:ul |
| person_str_mv | Carvalho, Mamede Carvalho, Mamede http://orcid.org/0000-0001-7556-0158 0000-0001-7556-0158 Swash, Michael Swash, Michael http://orcid.org/0000-0002-8717-8914 0000-0002-8717-8914 |
| publishDate | 2016 |
| publisher.none.fl_str_mv | Elsevier |
| reponame_str | Repositório da Universidade de Lisboa |
| repository_id_str | urn:repositoryAcronym:ul |
| service_str_mv | urn:repositoryAcronym:ul |
| spelling | engElsevierpt_PTObjective: Fasciculations are occasionally observed in root lesions, but their site of origin is uncertain. Methods: We studied the origin of fasciculations (FPs) in consecutive patients with mild chronic L5 root lesions, excluding peripheral nerve lesion. We used a novel technique of double-EMG needle recording, in which each needle was placed in the territory of separate motor units. With this technique the observation of synchronous FPs implies an origin proximal to distal axonal branching. Results: FPs were found in 13% of 84 consecutive patients with mild chronic L5 root lesions. In 25% they were synchronous in different motor units. Conclusions: We suggest that in mild L5 root lesions most FPs have an origin at distal branches but some FPs originate proximally (25%), possibly at the site of nerve compression. Significance: The proximal site of compression and more distal sites may both initiate fasciculation potentials in proximal root lesions.application/pdfpt_PTOrigin of fasciculations in root lesionsPersonalCarvalho, MamedeDSpacehttp://dspace.org/items/dd7f55d4-c2b5-4fd2-9bd1-a9542a62f58fDSpacehttp://dspace.org/items/dd7f55d4-c2b5-4fd2-9bd1-a9542a62f58fde CarvalhoMamedeORCIDhttp://orcid.org0000-0001-7556-0158Scopus Author IDhttps://www.scopus.com7101893769PersonalSwash, MichaelDSpacehttp://dspace.org/items/c6014014-de11-4f31-ac1a-096c54052517DSpacehttp://dspace.org/items/c6014014-de11-4f31-ac1a-096c54052517SwashMichaelORCIDhttp://orcid.org0000-0002-8717-8914Scopus Author IDhttps://www.scopus.com7101990692HostingInstitutionOrganizationalRepositório Científico de Acesso Aberto da ULisboae-mailmailto:repositorio@reitoria.ulisboa.ptrepositorio@reitoria.ulisboa.ptISSNIsPartOf1388-2457DOIIsPartOf10.1016/j.clinph.2015.02.0042022-06-21T14:51:11Z20162016-01-01T00:00:00ZHandlehttp://hdl.handle.net/10451/53423http://purl.org/coar/access_right/c_16ecrestricted accessFasciculation potentialsOriginReinnervationRoot lesion431620 bytesliteraturehttp://purl.org/coar/resource_type/c_6501journal articlehttp://purl.org/coar/access_right/c_16ecapplication/pdffulltexthttps://repositorio.ulisboa.pt/bitstreams/827f4f5f-c05e-4e42-87d4-066e25a85cb8/downloadClinical Neurophysiology1271870873 |
| spellingShingle | Origin of fasciculations in root lesions Origin of fasciculations in root lesions Carvalho, Mamede Fasciculation potentials Origin Reinnervation Root lesion Carvalho, Mamede Fasciculation potentials Origin Reinnervation Root lesion |
| status | SINGLETON |
| subject.fl_str_mv | Fasciculation potentials Origin Reinnervation Root lesion |
| title | Origin of fasciculations in root lesions |
| title_full | Origin of fasciculations in root lesions |
| title_fullStr | Origin of fasciculations in root lesions Origin of fasciculations in root lesions |
| title_full_unstemmed | Origin of fasciculations in root lesions Origin of fasciculations in root lesions |
| title_short | Origin of fasciculations in root lesions |
| title_sort | Origin of fasciculations in root lesions |
| topic | Fasciculation potentials Origin Reinnervation Root lesion |
| topic_facet | Fasciculation potentials Origin Reinnervation Root lesion |
| url | http://hdl.handle.net/10451/53423 |
| visible | 1 |