作者报道20例喉固定(喉返神经麻痹)患者的喉肌电图检查结果,5例甲状腺切除术后喉固定,15例自发性喉固定。局麻下用RaciaMS7型肌电记录仪及双极电极记录,针极经皮穿刺插入环甲肌,经皮和环甲膜穿刺插入声带肌(甲杓肌),经鼻纤维镜插入环杓后肌或侧肌,或在无箭毒中毒的神经安定药作用下经直接喉镜插入环杓后肌,以保存声带自主活动。20例喉固定患者肌电定位诊断结果有6种表现:①喉肌电正常,环杓关节强直或脱位;② The authors reported the results of laryngeal electromyography in 20 patients with laryngeal nerve paralysis, 5 laryngeal fixation after thyroidectomy and 15 laryngeal fixation. Local anesthesia with RaciaMS7 type electromyography and bipolar electrode recording, needle percutaneous puncture and insertion of cricothyroid muscle, percutaneous and cricothyroid membrane inserted into the vocal cord muscle (muscle shy), nasal fibroscope inserted into the ring after Muscle or lateral muscle, or in the absence of arrow poisoning of neuroleptic drugs through the direct laryngoscope inserted into the ring after the biceps muscle, in order to preserve the vocal cord autonomy. There were 6 manifestations of EMG in 20 cases of laryngeal fixation: ① normal laryngeal electromyography, rigidity or dislocation of cricoid joint; ②