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Abstract：
The low incidence of injury to the recurrent laryngeal nerve (RLN) and external branch of the superior laryngeal nerve (EBSLN) quoted in the literature is derived from expert series. The exact incidence of nerve injury of a thyroid surgeon will be revealed only if pre-operative and post-operative laryngoscopy is becoming routine practice. It is found that the injury rates are increased with routine post-operative laryngoscopy. Subjective voice change occurred in one third of patients all whom had normal vocal cord motion. Therefore, it is important to take written informed consent for voice change in addition to identification of both nerves and documenting it.
摘要：
文献中引用的喉返神经（RLN）和喉上神经外支（EBSLN）损伤的低发生率来自专家系列。只有在术前和术后喉镜检查成为常规操作时，甲状腺外科医生的神经损伤的确切发生率才会被揭示。发现常规的术后喉镜检查会增加损伤率。所有声带运动正常的患者中有三分之一发生主观声音变化。因此,重要的是要采取书面知情同意书的声音改变，除了识别和记录它的神经。
