[Clinical and electromyographic characteristics of syndromes of pathologic muscular fatigue of the myasthenic type].

On the basis of the follow-up study of more than 2000 patients with different forms of pathological muscular fatiguability of the myasthenic type, the authors emphasize the heterogeneity of this group of patients. The detailed study of clinical and electromyographic picture permitted them to distinguish the following clinical forms; myasthenia, myasthenic syndrome in terminal polyneuropathy, the myastheniapolymyositis complex, myasthenic syndrome of Lambert--Etone type.