Assessment of a Neurophysiological Model of the Mandibular Branch of the Facial Nerve in Rats by Electromyography

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dc.contributorSistema FMUSP-HC: Faculdade de Medicina da Universidade de São Paulo (FMUSP) e Hospital das Clínicas da FMUSP
dc.contributor.authorSALOMONE, Raquel
dc.contributor.authorCOSTA, Heloisa Juliana Zabeu Rossi
dc.contributor.authorRODRIGUES, Jose Ricardo Ferreira
dc.contributor.authorSILVA, Samanta Marques Reis e
dc.contributor.authorORANDO, Patricia Camacho
dc.contributor.authorBENTO, Ricardo Ferreira
dc.date.accessioned2013-07-30T15:14:13Z
dc.date.available2013-07-30T15:14:13Z
dc.date.issued2012
dc.description.abstractObjectives: Our objective was to develop an experimental model for the noninvasive and objective evaluation of facial nerve regeneration in rats using a motor nerve conduction test (electromyography). Methods: Twenty-two rats were submitted to neurophysiological evaluation using motor nerve conduction of the mandibular branch of the facial nerve to obtain the compound muscle action potentials (CMAPs). To record the CM APs, we used two needle electrodes that were inserted into the lower lip muscle of the rat. A supramaximal electrical stimulus was applied, and the values of CMAP latency, amplitude, length, area, and stimulus intensity obtained from each side were compared by use of the Wilcoxon test. Results: There was no significant difference (all p > 0.05) in latency, amplitude, duration, area, or intensity of stimuli between the two sides. The amplitudes ranged between 1.61 and 8.30 mV, the latencies between 1.03 and 1.97 ms, and the stimulus intensities between 1.50 and 2.90 mA. Conclusions: This is a noninvasive, easy, and highly reproducible method that contributes to an improvement of the techniques previously described and may contribute to future studies of the degeneration and regeneration of the facial nerve.
dc.description.indexMEDLINE
dc.description.sponsorshipSao Paulo Foundation
dc.identifier.citationANNALS OF OTOLOGY RHINOLOGY AND LARYNGOLOGY, v.121, n.3, p.179-184, 2012
dc.identifier.issn0003-4894
dc.identifier.urihttps://observatorio.fm.usp.br/handle/OPI/902
dc.language.isoeng
dc.publisherANNALS PUBL CO
dc.relation.ispartofAnnals of Otology Rhinology and Laryngology
dc.rightsrestrictedAccess
dc.rights.holderCopyright ANNALS PUBL CO
dc.subjectelectromyography
dc.subjectfacial nerve
dc.subjectnerve regeneration
dc.subjectneurophysiology
dc.subjectWistar rat
dc.subject.otherregeneration
dc.subject.othermotoneurons
dc.subject.othertransection
dc.subject.othercompression
dc.subject.otherrecovery
dc.subject.otherinjury
dc.subject.othersuture
dc.subject.othermouse
dc.subject.wosOtorhinolaryngology
dc.titleAssessment of a Neurophysiological Model of the Mandibular Branch of the Facial Nerve in Rats by Electromyography
dc.typearticle
dc.type.categoryoriginal article
dc.type.versionpublishedVersion
dspace.entity.typePublication
hcfmusp.author.externalRODRIGUES, Jose Ricardo Ferreira:Univ Sao Paulo, Sch Med, Inst Orthoped & Trauma, BR-05403000 Sao Paulo, Brazil
hcfmusp.author.externalORANDO, Patricia Camacho:Univ Nove Julho, Dept Biol, Sao Paulo, Brazil
hcfmusp.citation.scopus13
hcfmusp.contributor.author-fmusphcRAQUEL SALOMONE
hcfmusp.contributor.author-fmusphcHELOISA JULIANA ZABEU ROSSI COSTA
hcfmusp.contributor.author-fmusphcSAMANTA MARQUES REIS E SILVA
hcfmusp.contributor.author-fmusphcRICARDO FERREIRA BENTO
hcfmusp.description.beginpage179
hcfmusp.description.endpage184
hcfmusp.description.issue3
hcfmusp.description.volume121
hcfmusp.lim.ref2012
hcfmusp.origemWOS
hcfmusp.origem.pubmed22530478
hcfmusp.origem.scopus2-s2.0-84858162469
hcfmusp.origem.wosWOS:000301695200007
hcfmusp.publisher.cityST LOUIS
hcfmusp.publisher.countryUSA
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