[Diagnosis of myasthenia. Value of tensilon test, repetitive stimulation, staircase phenomenon and acetylcholine receptor antibody titer].

In a retrospective study on 78 patients with myasthenia gravis the diagnostic value of various investigational methods is assessed. On the basis of the results of the Tensilon test, repetitive stimulation, the staircase phenomenon and acetylcholine receptor antibody titre in the different clinical subgroups practical guidelines are proposed for the diagnosis of myasthenia gravis.