Emeryk B, Rowińska K, Michalska T
Kliniki Neurologicznej AM w Warszawie.
Neurol Neurochir Pol. 1991 Mar-Apr;25(2):156-62.
A group of 10 patients with atypical result of repetitive stimulation was selected out of the patients examined in our EMG Laboratory. The diagnosis of myasthenia was clinically confirmed. In all those 10 patients no essential amplitude decrement was found on stimulation, so the electrophysiological confirmation of the diagnosis was lacking. On repetitive stimulation (3 Hz) all increment of the response was observed and also post-tetanic facilitation was present. In SFEMG moderate neuromuscular transmission disturbances were found in those patients. It suggests that, sometimes, facilitation may reflect disturbed neuromuscular transmission even despite the absence of the typical amplitude decrement.
从我们肌电图实验室检查的患者中选出一组10例重复刺激结果不典型的患者。重症肌无力的诊断已得到临床证实。在所有这10例患者中,刺激时未发现明显的波幅递减,因此缺乏诊断的电生理依据。在重复刺激(3Hz)时,观察到所有反应均有增量,并且存在强直后易化。在单纤维肌电图检查中,发现这些患者存在中度神经肌肉传递障碍。这表明,有时即使没有典型的波幅递减,易化也可能反映神经肌肉传递障碍。