Spahn J G, Bizal J, Ferguson S, Lingeman R E
Laryngoscope. 1981 Nov;91(11):1865-8. doi: 10.1288/00005537-198111000-00011.
Head and neck surgeons are familiar with the technique of identifying motor nerves in the head and neck region by using electrical stimulation especially in the identification of the facial and the spinal accessory nerves. The identification of the motor laryngeal nerves by electrical stimulation intra-operatively has been described; but, the difficulty of visualization of intrinsic laryngeal muscle movement has prevented the wide spread use of this technique. This paper will introduce a simple, safe and reliable method to allow the surgeon to recognize true vocal cord movement while stimulating the recurrent laryngeal nerve. The movement of a two inch 27 gauge needle placed through the cricothyroid membrane into the ipsilateral true vocal cord permits identification of intrinsic laryngeal muscle movement during electrical stimulation of the recurrent laryngeal nerve. This method has been successfully used in confirming conductivity of the laryngeal nerve during thyroid surgery, Zenker's diverticulum surgery, cricotracheal trauma and recurrent nerve neurectomy for spasmodic dysphonia.
头颈外科医生熟悉通过电刺激来识别头颈部区域运动神经的技术，尤其是在识别面神经和副神经时。术中通过电刺激识别喉运动神经的方法已有描述；但是，喉内肌运动可视化的困难阻碍了该技术的广泛应用。本文将介绍一种简单、安全且可靠的方法，使外科医生在刺激喉返神经时能够识别声带的真实运动。将一根两英寸长的27号针经环甲膜插入同侧真声带，通过该针的运动可在电刺激喉返神经时识别喉内肌运动。该方法已成功用于甲状腺手术、Zenker憩室手术、环状气管创伤以及痉挛性发音障碍的喉返神经切除术过程中，以确认喉神经的传导性。
