Corticonuclear innervation to facial muscles in normal controls and in patients with central facial paresis

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dc.contributor.authorYildiz, N
dc.contributor.authorErtekin, C
dc.contributor.authorOzdemirkiran, T
dc.contributor.authorYildiz, SK
dc.contributor.authorAydogdu, I
dc.contributor.authorUludag, B
dc.contributor.authorSecil, Y
dc.date.accessioned2019-10-27T18:58:33Z
dc.date.available2019-10-27T18:58:33Z
dc.date.issued2005
dc.departmentEge Üniversitesien_US
dc.description.abstractRecently it has been proposed that corticobulbar innervation of the lower facial muscles is bilateral, that is from both right and left sides of the motor cortex. The objectives of this study were, i) to evaluate the corticonuclear descending fibers to the perioral muscles and, ii) to determine how central facial palsy (CFP) occurs and often recovers rapidly following a stroke. Eighteen healthy volunteers and 28 patients with a previous history of a stroke and CFP (mean ages: 51 and 61 years) were investigated by TMS (transcranial magnetic stimulation) with a figure of eight coil. Intracranial facial nerve and cortical motor evoked potentials (MEPs) were recorded from the perioral muscles. The periorbital MEPs were also studied. The absence of MEPs in both perioral muscles with TMS of the affected hemisphere was the most obvious abnormality. Also, central conduction time was significantly prolonged in the remaining patients. The mean amplitude of the affected hemisphere MEPs was diminished. The amplitudes of the unaffected hemisphere MEPs recorded from the intact side were enhanced especially in the first week following the stroke. During TMS, only the blink reflexes were elicited from the periorbital muscles due to stimulus spreading to trigeminal afferent nerve fibers. It is concluded that perioral muscles are innervated by the corticobulbar tract bilaterally. CFP caused by a stroke is generally incomplete and mild because of the ipsilateral cortical and multiple innervations out of the infarction area, and recovers fast through cortical reorganisation.en_US
dc.identifier.doi10.1007/s00415-005-0669-3en_US
dc.identifier.endpage435en_US
dc.identifier.issn0340-5354
dc.identifier.issn1432-1459
dc.identifier.issue4en_US
dc.identifier.pmid15726262en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage429en_US
dc.identifier.urihttps://doi.org/10.1007/s00415-005-0669-3
dc.identifier.urihttps://hdl.handle.net/11454/37497
dc.identifier.volume252en_US
dc.identifier.wosWOS:000228501400007en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.language.isoenen_US
dc.publisherSpringer Heidelbergen_US
dc.relation.ispartofJournal of Neurologyen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectcentral facial paralysisen_US
dc.subjectplasticity neuronalen_US
dc.subjectfacial musclesen_US
dc.subjectfacial nerveen_US
dc.subjectmotor evoked potentialsen_US
dc.titleCorticonuclear innervation to facial muscles in normal controls and in patients with central facial paresisen_US
dc.typeArticleen_US

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