重症肌无力中刺激和自主单纤维肌电图的诊断阳性率

Diagnostic yield of stimulation and voluntary single-fiber electromyography in myasthenia gravis.

作者信息

Murga L, Sánchez F, Menéndez C, Castilla J M

机构信息

Department of Clinical Neurophysiology, Reina Sofia University Hospital, Menéndez Pidal s/n, Córdoba, Spain.

出版信息

Muscle Nerve. 1998 Aug;21(8):1081-3. doi: 10.1002/(sici)1097-4598(199808)21:8<1081::aid-mus16>3.0.co;2-x.

DOI:10.1002/(sici)1097-4598(199808)21:8<1081::aid-mus16>3.0.co;2-x

PMID:9655130

Abstract

Voluntary and stimulation single-fiber electromyography were performed in the extensor digitorum communis muscle of 15 myasthenic patients. The increase in mean and individual mean consecutive difference as well as the proportion of blocking in the volitional activation were greater than in the stimulation method. These differences may be explained in part by the different degree of alteration in large as compared with small motor units in patients with myasthenia gravis.

摘要

对15例重症肌无力患者的指总伸肌进行了自主和刺激单纤维肌电图检查。与刺激法相比，自主激活时平均和个体平均连续差值的增加以及阻滞比例更大。这些差异部分可能是由于重症肌无力患者大运动单位与小运动单位的改变程度不同所致。