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Year : 2021  |  Volume : 27  |  Issue : 2  |  Page : 138-140

Variations in course of laryngeal nerves during thyroid surgery

1 Department of General Surgery, MES Medical College, Perinthalmanna, Kerala, India
2 Department of Surgery, MES Medical College, Perinthalmanna, Kerala, India

Correspondence Address:
Dr. Hafiz Mohammed
Department of General Surgery, MES Medical College, Perinthalmanna - 679 322, Kerala
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/ksj.ksj_36_21

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Introduction: Recurrent laryngeal nerve (RLN) is routinely exposed and traced during all thyroid surgeries. The refinement in surgical techniques has made recognition of the RLN and the external branch of superior laryngeal nerve (EBSLN) possible during surgery resulting in lesser morbidity. Aims and Objectives: The aim of this study is to describe the variations in surgical anatomy of both RLN EBSLN in patients undergoing thyroidectomy and to look for proportion of cases with injury to RLN. Methodology: It was a prospective, observational study. The demographic details of the patient, the diagnosis and the surgical findings (variants of EBSLN, branches of RLN and relation of RLN to inferior thyroid artery [ITA]) were recorded. Postoperatively, after 48 h, the vocal cords were assessed by indirect laryngoscopy. The data were analysed using the SPSS software. Results: Cernea type 1 is the most common position of external laryngeal nerve (67.8%). The RLN passes posterior to the ITA in 46.5% on the right side and 44.3% on the left side. RLN gives one branch in 69.3% cases. There was no injury to the laryngeal nerves noted during this study. Conclusion: Very meticulous dissection helps in identifying the RLN and preserving it. The best way to preserve the RLN nerves is to identify the nerve and preserve them rather than staying away.

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