Intraoperative Monitoring of External Branch of the Superior Laryngeal Nerve: Functional Identification, Motor Integrity, and its Role on Vocal Cord Function

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dc.contributor.authorGürleyik, Emin
dc.contributor.authorGürleyik, Günay
dc.date.accessioned2020-04-30T23:18:34Z
dc.date.available2020-04-30T23:18:34Z
dc.date.issued2018
dc.departmentDÜ, Tıp Fakültesi, Cerrahi Tıp Bilimleri Bölümüen_US
dc.descriptionWOS: 000466370000010en_US
dc.descriptionPubMed: 28952819en_US
dc.description.abstractPurpose: Beside recurrent laryngeal nerve (RLN), protection of the external branch of the superior laryngeal nerve (EBSLN) is required for complication-free thyroid surgery. This study investigates the contribution of intraoperative neuromonitoring (IONM) to identification and motor integrity of the EBSLN. Methods: This prospective study was performed on 245 EBSLNs in 147 patients with thyroid surgery. The rate of visual identification, contribution of IONM to functional localization, the rate and levels of recordable waveform amplitude from vocal cord (VC) movement were determined during surgery. Results: 164 (66.9%) EBSLNs were visually identified and additional 74 branches were functionally identified by IONM. Additional identification rate of IONM was 30.2%. Seven (2.9%) EBSLNs could not be identified during surgery. Cricothyroid muscle (CTM) twitch established functional integrity in 97.1% of EBSLNs. Electrophysiological stimulation of 151 (63.4%) EBSLNs created waveform amplitude >100 mu V that mean amplitude level was calculated as 186 mu V, and an amplitude >300 mu V was recorded in 19 of 151 (12.6%) EBSLNs. Conclusions: In addition to visual identification, surgeons can functionally localize the EBSLN with the assistance of IONM that CTM twitch is a reliable evience for functional integrity of the EBSLN. In the majority of patients, stimulation of the EBSLN creates recordable waveform amplitude thus the EBSLN appears to be a second source of motor innervations for intrinsic laryngeal muscles.en_US
dc.identifier.doi10.1080/08941939.2017.1362489en_US
dc.identifier.endpage514en_US
dc.identifier.issn0894-1939
dc.identifier.issn1521-0553
dc.identifier.issue6en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.startpage509en_US
dc.identifier.urihttps://doi.org/10.1080/08941939.2017.1362489
dc.identifier.urihttps://hdl.handle.net/20.500.12684/3408
dc.identifier.volume31en_US
dc.identifier.wosWOS:000466370000010en_US
dc.identifier.wosqualityQ3en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakPubMeden_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherTaylor & Francis Incen_US
dc.relation.ispartofJournal Of Investigative Surgeryen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectthyroiden_US
dc.subjectgoiteren_US
dc.subjectsurgeryen_US
dc.subjectIONMen_US
dc.subjectEBSLNen_US
dc.subjectRLNen_US
dc.titleIntraoperative Monitoring of External Branch of the Superior Laryngeal Nerve: Functional Identification, Motor Integrity, and its Role on Vocal Cord Functionen_US
dc.typeArticleen_US

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