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目的：评估喉肌电图中纤颤电位波幅测定的临床应用价值。方法：对54例（共65侧）喉返神经麻痹患者的甲构肌、环构后肌行肌电图检查，记录最大纤颤电位波幅。结果：不同性别、年龄及不同侧的纤颤电位波幅间的差异无显著性，失神经环构后肌纤颤电位波幅均值在病程2～＜4个月时最高，而失神经甲构肌纤颤电位波幅均值在病程4～＜6个月时最高，相当一部分患者的纤颤电位波幅晚期仍维持一定水平，并且神经完全损伤者和不完全损伤者各时间纤颤电位波幅均有显著性差异，而神经不完全损伤者各时间幅度变化小。结论：纤颤电位波幅可成为一个反映肌肉萎缩是否可逆的潜在指标，其应用较传统纤颤电位检查法更具科学性。
Objective: To evaluate the clinical value of fibrillation potential amplitude measurement in laryngeal electromyography. Methods: 54 cases (65 sides) of recurrent laryngeal nerve paralysis in patients with the muscular and post-circumscribed muscle EMG examination, record the amplitude of maximum fibrillation potential. Results: There was no significant difference in the amplitudes of fibrillation potential between different sexes, ages and different sides. The average value of amplitude of fibrillation amplitude after denervation was the highest at 2 ~ <4 months, The mean value of amplitude of quiver was the highest at 4 ~ <6 months, and the amplitude of fibrillation still remained at a certain level in a considerable part of patients, and the amplitude of fibrillation amplitude was significantly different in all patients with incomplete nerve injury and incomplete injury , While incomplete changes in nerve amplitude changes in small time. CONCLUSIONS: The amplitude of fibrillation potential may be a potential indicator of whether muscle atrophy is reversible or not, and its application is more scientific than that of conventional fibrillation.