Anatomical and functional identification of the external branch of the superior laryngeal nerve: classification based on morphology and electrophysiological monitoring

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dc.contributor.authorGurleyik, Emin
dc.contributor.authorGurleyik, Gunay
dc.date.accessioned2021-12-01T18:48:36Z
dc.date.available2021-12-01T18:48:36Z
dc.date.issued2021
dc.department[Belirlenecek]en_US
dc.description.abstractBackground Motor function of the external branch of superior laryngeal nerve (EBSLN) is vital for voice quality. We studied the rate of EBSLN identification and integrity in the era of intraoperative neuromonitoring (IONM). Methods Anatomic and functional identification of 515 EBSLNs-at-risk was performed under the guidance of IONM that motor integrity was electrophysiologically checked. The functional integrity was assessed with crico-thyroid muscle (CTM) twitches and/or recordable waveform amplitude. We tried to establish the systematic classification of EBSLN identification and integrity. Results Visual, electrophysiological and total identification rates were 64.3%, 31.6% and 95.9%, respectively. We could identify 4.1% of EBSLNs neither anatomically nor electrophysiologically. We recorded CTM twitches alone or both CTM twitches and wave amplitude in 203(39.4%) and 291(56.5%) branches respectively. Identification features of EBSLNs were systematically classified under three main types: Visualized-monitored (1), non-visualized-monitored (2), unidentified (3), and electrophysiological integrity of EBSLNs under two subtypes: CTM twitches alone (a) and CTM twitches and wave amplitude (b). Conclusion Dedicated thyroid surgeon could visually identify EBSLNs. IONM contribution significantly increases the identification rate. Systematic classification of identification and electrophysiological integrity of EBSLNs may increase comprehensive knowledge about its motor function that is crucial for complication-free thyroidectomy.en_US
dc.identifier.doi10.1080/00015458.2021.1894733
dc.identifier.issn0001-5458
dc.identifier.pmid33729893en_US
dc.identifier.scopus2-s2.0-85103399825en_US
dc.identifier.scopusqualityQ3en_US
dc.identifier.urihttps://doi.org/10.1080/00015458.2021.1894733
dc.identifier.urihttps://hdl.handle.net/20.500.12684/10568
dc.identifier.wosWOS:000635010300001en_US
dc.identifier.wosqualityQ4en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakPubMeden_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherTaylor & Francis Ltden_US
dc.relation.ispartofActa Chirurgica Belgicaen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectThyroiden_US
dc.subjectsurgeryen_US
dc.subjectEBSLNen_US
dc.subjectIONMen_US
dc.subjectcrico-thyroid muscleen_US
dc.titleAnatomical and functional identification of the external branch of the superior laryngeal nerve: classification based on morphology and electrophysiological monitoringen_US
dc.typeArticleen_US

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