EEG-EMG Zeitschrift für Elektroenzephalographie, Elektromyographie und verwandte Gebiete
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EEG EMG Z Elektroenzephalogr Elektromyogr Verwandte Geb · Dec 1977
[The value of EEG after sleep deprivation (author's transl)].
Seventy seven adult epileptics and 30 patients with clinically non epileptic seizures were subject to a 24 hours sleep deprivation. The waking records of these patients were normal or unspecific abnormal. ⋯ Drug induced sleep emerged to be diagnostically less helpful. Twenty nine out of 30 patients with clinical nonepileptic seizures had no additional abnormalities in the EEG after sleep deprivation.
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EEG EMG Z Elektroenzephalogr Elektromyogr Verwandte Geb · Dec 1977
[The staircase phenomenon in myasthenia gravis and other neuromuscular disorders (author's transl)].
The isometric contractions with repetitive stimulation of 2/sec during 90 sec have been recorded in 39 patients with neuromuscular disorders other than myasthenia gravis. Seven patients had falling amplitudes of the contractions, in 14 cases the increase was below 12 per cent and 21 patients had a normal staircase phenomenon. It is recommended to take only a falling of the contraction amplitudes as an important indication for myasthenia gravis. This finding, however, is not specific and in the indivisual case it has to be considered in combination with the other clinical, electro-physiological and histological findings.