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KMID : 0361020000430060674
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Korean Journal of Otolaryngology - Head and Neck Surgery
2000 Volume.43 No. 6 p.674 ~ p.677
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A Case of Nonrecurrent Inferior Laryngeal Nerve
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이국행/Guk Haeng Lee
권순욱/김용정/이병철/Soon Uk Kwon/Yong Jeong Kim/Byeong Cheol Lee
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Abstract
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-Abstract-
Damages on the recurrent laryngeal nerve (RLN) during thyroid surgery is the most common iatrogenic
cause of vocal cord paralysis. Identification of the recurrent laryngeal nerve and meticulous surgical
techniques can significantly decrease the incidence of this complication. The nonrecurrent inferior laryngeal
nerve is an exceedingly rare anomaly of the recurrent laryngeal nerve. The nonrecurrent inferior laryngeal
nerve is associated with abnormal development of the aortic arch, where the innominate (brachiocephalic)
artery is not found and the fight common carotid artery rises directly from the aortic arch. The aberrant
right subclavian artery can always be felt against the vertebral column behind the esophagus. Surgeons
need to be aware of the positions of these arteries to avoid damaging them.
We experienced a case of nonrecurrent inferior laryngeal nerve in the right side with the aberrant right
subclavian artery. The patient received a total thyroidectomy with neck dissection for thyroid carcinoma
with nodal metastasis. Incidentally, we also found nonrecurrent inferior laryngeal nerve, and also found an
aberrant right subclavian artery by the computed tomography scan. The patient presented transient vocal
cord paralysis but gained complete recovery of vocal cord mobility after one and a half month later.
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