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目的:探讨重症肌无力(MG)病情变化和单纤维肌电图(SFEMG)颤抖(jitter)值变化之间的关系。方法:对MG患者治疗前后的病情进行绝对评分并计算相对评分,同时行SFEMG检查,统计分析相对评分和jitter值变化率之间的关系。结果:MG患者随病情好转或痊愈,jitter值相应变小,病情变化和jitter值变化率总体呈弱相关(非Ⅰ型MG患者相关参数r=0.617、R2=0.380、P=0.008)。结论:病情的变化影响jitter值,但jitter值的改变不能及时反应病情的变化,对于预测病情的转归帮助有限。
Objective: To investigate the relationship between changes in myasthenia gravis (MG) and changes in jitter of single-fiber electromyography (SFEMG). Methods: The absolute scores of MG patients before and after treatment were calculated and the relative scores were calculated. At the same time, SFEMG was used to analyze the relationship between the relative scores and the change rate of jitter values. Results: With the improvement or recovery of the patients, the jitter value became smaller correspondingly. The change of the jitter value was weakly correlated with the change of jitter value (r = 0.617, R2 = 0.380, P = 0.008). Conclusion: The changes of the condition affect the jitter value, but the change of the jitter value can not reflect the change of the disease in time, which will help to predict the prognosis of the disease.