单侧特发性声带麻痹神经电刺激治疗后即刻疗效初步观察

目的 探讨单侧特发性声带麻痹喉返神经/喉上神经电刺激治疗后即刻对主观声音改变、声学参数以及动态喉镜观察结果的影响.方法 选取诊断为单侧特发性声带麻痹的患者,回顾性收集其行喉肌电图检查并同期行神经电刺激治疗前后的动态喉镜及嗓音分析检查结果,分析检查及治疗前后主观声音改变,声学参数(jitter、shimmer、DSI、M...

Preliminary observation of the immediate curative effect of unilateral idiopathic vocal cord palsy after electrical stimulation of the nerve

Objective To explore the effects of idiopathic vocal cord paralysis on subjective sound changes, acoustic parameters, and dynamic laryngoscope observations immediately after electrical stimulation of the recurrent laryngeal nerve/supralaryngeal nerve. Methods The records of patients who were diagnosed with unilateral idiopathic vocal cord paralysis at the Throat Clinic of the Second Affiliated Hospital of Xi'an Jiaotong University from March 2018 to April 2020 before and after undergoing laryngeal EMG examination and concurrent neuroelectric stimulation treatment were reviewed. The stroboscopic laryngoscopy and voice analysis results, subjective voice changes before and after examination and treatment, acoustic parameters(jitter, shimmer, MPT), and dynamic laryngoscope observation results were assessed. Results A total of 43 patients with unilateral idiopathic vocal cord paralysis met the inclusion criteria: 4 had recurrent laryngeal nerve damage of the superior laryngeal nerve, 1 had superior laryngeal nerve damage, and 38 had recurrent laryngeal nerve damage. After laryngeal electromyography and nerve electrical stimulation treatment, the patients felt that their speech was more relaxed than before. Stroboscopic laryngoscopy immediately after treatment revealed that 5 patients(11.6%)had closed vocal cords. There was no significant change. In 38 cases(88.4%), the glottis was significantly smaller after than before the examination, and the fundamental frequency and mucosal waves could be collected. The changes in acoustic parameters did not significantly differ after treatment: MPT(6.58±2.75 vs 10.3±5.18, P<0.000 1), DSI(-3.79±6.7vs -0.11±1.68, P=0.002), jitter and shimmer(P>0.05). Conclusion Patients with idiopathic vocal cord palsy receiving early laryngeal electromyography and nerve electrical stimulation intervention can improve hoarseness, significantly extend the longest pronunciation time, improve the severity index of voice disorders, and significantly improve the degree of glottis closure. The recovery of the nerve function has a positive effect.