To investigate clinical manifestation and laboratory indexes of polymyositis(PM) in active stage and their assessment value, and then judge the disease activity correctly.
探讨单纯性多发性肌炎（PM）活动期的临床表现及实验室指标变化，并综合分析两者对活动性的评估价值，从而正确、客观地判断疾病活动性，进一步指导治疗。
Objective:To study the difference of electromyography(EMG) and muscle enzyme(ME) in the progression of polymyositis(PM) and dermatomyositis(DM).
目的：探讨多发性肌炎和皮肌炎起病不同时间的肌电图与肌酶的演变规律。
A thinking on the diagnosis and treatment of polymyositis (PM) was explored by the theory of eight extra meridians and collateral disease of TCM.
从中医奇经和络病理论探析多发性肌炎的诊治思路。
Objective To analyze the clinical features and change of electromyography and muscle biopsy in polymyositis (PM) and guide diagnosis.
目的总结和分析多发性肌炎患者的临床特征、肌肉电生理及病理改变的临床意义，指导临床诊治。
Objective To analyze the clinical features and change of electromyography and muscle biopsy in polymyositis (PM) and guide diagnosis.
目的总结和分析多发性肌炎患者的临床特征、肌肉电生理及病理改变的临床意义，指导临床诊治。
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