甲状腺手术中的非返性喉返神经：频率、新分类的解剖变异及手术考虑因素。
Nonrecurrent laryngeal nerve in thyroid surgery: Frequency, anatomical variations according to a new classification and surgery consideration.
机构信息
Department of Oncology, Hanoi Medical University, Dong Da District, Hanoi, Vietnam.
Department of Head and Neck Surgery, Vietnam National Cancer Hospital, Hanoi, Vietnam.
出版信息
Head Neck. 2019 Sep;41(9):2969-2975. doi: 10.1002/hed.25771. Epub 2019 Apr 17.
BACKGROUND
The nonrecurrent laryngeal nerve (NRLN) is a rare embryologically derived variant of the RLN. We aimed to identify the proportion of NRLN (during thyroidectomy), classify clinical NRLN types, and recommend some surgical considerations.
METHOD
In this prospective study, from May 2017 to September 2018, our hospital carried out 2158 thyroid operations. We reported the NRLN rate and distinguished NRLN into four types.
RESULTS
Overall, NRLN had an incidence rate of 0.74% (16 out of 2158 total thyroid surgeries). We did not detect any patient with left-sided NRLN. The traveling patterns of the nerves could be classified as descending (12.5%), vertical (25%), ascending (37.5%), or V-shaped (25%).
CONCLUSION
The NRLN is a rare variation of the RLN. From our experience, we recommend the guidelines will help surgeons to avoid NRLN injury.
背景
非返喉神经（NRLN）是 RLN 的一种罕见的胚胎源性变异。我们旨在确定 NRLN（在甲状腺切除术期间）的比例，对临床 NRLN 类型进行分类，并提出一些手术注意事项。
方法
在这项前瞻性研究中，我院于 2017 年 5 月至 2018 年 9 月期间进行了 2158 例甲状腺手术。我们报告了 NRLN 的发生率，并将 NRLN 分为四型。
结果
总的来说，NRLN 的发生率为 0.74%（2158 例甲状腺手术中有 16 例）。我们没有发现任何左侧 NRLN 的患者。神经的行走模式可分为下降型（12.5%）、垂直型（25%）、上升型（37.5%）或 V 型（25%）。
结论
NRLN 是 RLN 的一种罕见变异。根据我们的经验，我们建议的指南将有助于外科医生避免 NRLN 损伤。
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