Normal values for single fiber EMG parameters of frontalis muscle in healthy subjects older than 70 years

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dc.contributor.authorBalci, K
dc.contributor.authorTurgut, N
dc.contributor.authorNurlu, G
dc.date.accessioned2024-06-12T11:14:10Z
dc.date.available2024-06-12T11:14:10Z
dc.date.issued2005
dc.departmentTrakya Üniversitesien_US
dc.description.abstractObjective: Single fiber EMG (SFEMG) is a potent electrophysiological method to evaluate impaired neuromuscular transmission, and allows sensitive diagnosis of neuromuscular transmission abnormalities such as myasthenia gravis. The jitter and fiber density values are different for various muscles and age groups and the reference values increase with age. In this study, we evaluated the reference values of jitter and fiber density of frontalis muscle in healthy subjects older than 70 years. Methods: We evaluated the jitter and fiber density of frontalis muscle in 32 healthy subjects. Twenty-two of them were between 70 and 79 years old (mean +/- SD, 73.9 +/- 1.7), and 10 of them were older than 80 years (mean +/- SD, 82.2 +/- 1.2). Results: Normal limit of jitter (95% confidence limit) was calculated as 40.4 mu s for healthy subjects between 70 and 79 years old and 43.7 mu s for healthy subjects older than 80 years and normal limit of fiber density (95% confidence limit) were calculated as 1.90 for subjects between 70 and 79 years old and 2.14 for subjects older than 80 years. Conclusions: We designated the reference values of jitter and fiber density for frontalis muscle in healthy subjects older than 70 years. Our reference values may have value to diagnose neuromuscular transmission abnormalities in elderly patients. Significance: SFEMG is sensitive for neuromuscular transmission abnormalities and it is important to know the reference values of frontalis muscle in healthy subjects older than 70 years. (c) 2005 International Federation of Clinical Neurophysiology. Published by Elsevier Ireland Ltd. All rights reserved.en_US
dc.identifier.doi10.1016/j.clinph.2005.03.001
dc.identifier.endpage1557en_US
dc.identifier.issn1388-2457
dc.identifier.issn1872-8952
dc.identifier.issue7en_US
dc.identifier.pmid15897007en_US
dc.identifier.scopus2-s2.0-20444413716en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage1555en_US
dc.identifier.urihttps://doi.org/10.1016/j.clinph.2005.03.001
dc.identifier.urihttps://hdl.handle.net/20.500.14551/23825
dc.identifier.volume116en_US
dc.identifier.wosWOS:000230296800009en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.language.isoenen_US
dc.publisherElsevier Ireland Ltden_US
dc.relation.ispartofClinical Neurophysiologyen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectSingle Fiber EMGen_US
dc.subjectJitteren_US
dc.subjectFrontalis Muscleen_US
dc.subjectNeuromuscular Transmissionen_US
dc.subjectElectromyographyen_US
dc.titleNormal values for single fiber EMG parameters of frontalis muscle in healthy subjects older than 70 yearsen_US
dc.typeArticleen_US

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