Monitoring of the Superior Laryngeal Nerve

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Tipo de produção
bookPart
Data de publicação
2022
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SPRINGER INTERNATIONAL PUBLISHING
Autores
VOLPI, E. M.
BARCZYNSKI, M.
Citação
Cernea, C. R.; Volpi, E. M.; Barczynski, M.. Monitoring of the Superior Laryngeal Nerve. In: . Intraoperative Cranial Nerve Monitoring in Otolaryngology-Head and Neck Surgery: SPRINGER INTERNATIONAL PUBLISHING, 2022. p.83-87.
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Resumo
The external branch of the superior laryngeal nerve (EBSLN) provides motor supply to the cricothyroid muscle (CTM). This muscle approximates the thyroid and cricoid cartilages, stretching the vocal fold, thus being essential for the production of high-frequency sounds. The surgeon must maintain the EBSLN to preserve a normal phonation, particularly among females and voice professionals. One essential tool to achieve this goal is the use of intraoperative neuromonitoring (IONM). It helps the surgeon identify the EBSLN during the dissection of the superior thyroid pole, before severing the superior thyroid vessels. In addition, it can assure the functional integrity of the nerve at the end of the thyroid lobectomy. The objective of this chapter is to familiarize the reader with the anatomic variations of the EBSLN and with the use of IONM techniques to minimize the risk of its intraoperative injury during a thyroidectomy. © The Editor(s) (if applicable) and The Author(s), under exclusive license to Springer Nature Switzerland AG 2022.
Palavras-chave
Intraoperative, Laryngeal nerve injuries/diagnosis, Laryngeal nerves/anatomy and histology, Monitoring, Postoperative complications/prevention and control, Thyroid gland/innervation, Thyroidectomy
Referências
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