Stöhr M, Petruch F, Schumm F, Reill P
EEG EMG Z Elektroenzephalogr Elektromyogr Verwandte Geb. 1976 Dec;7(4):198-200.
We investigated 59 patients in later stages after section and suture (n =23) or transplantation (n = 36) of the ulnar or median nerve. The most typical change in electromyographic pattern consists in a markedly increase of mean amplitude, due to an increased number and concentration of muslce fibers in the reconstituted motor-units. The mean duration and the incidence of polyphasic potentials are only slightly increased, indicating a nearly synchronous excitement of the different muscle fibers of the various motor-units. In no case there is a complete recovery; the mean amplitude of evoked potentials in reinnervated muscles varied from 32% in poor-, to 62% in satisfactory reinnervation, compared with the corresponding normal muscle in the opposite hand.
我们对59例尺神经或正中神经进行吻合或移植术后晚期患者进行了研究，其中吻合术组23例，移植术组36例。肌电图最典型的变化是平均波幅显著增加，这是由于重建运动单位中肌纤维数量和浓度增加所致。平均时限和多相波电位发生率仅略有增加，表明各运动单位不同肌纤维的兴奋近乎同步。无一例完全恢复；与对侧相应正常肌肉相比，重新支配肌肉中诱发电位的平均波幅在恢复较差者中为32%，在恢复满意者中为62%。
