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B Aşgian

Publications and source records attributed to B Aşgian.

40 records · Page 3Linked to original sources
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Computerized electroencephalographic, polysomnographic, transcranial ultrasound and morphopathological research in vertebro-basilar strokes.

This paper contains a clinical, classical electroencephalographic and computerized electroencephalographic (by original methods) study of 271 cases with vertebro-basilar strokes, all the cases being verified by transcranial Doppler ultrasound investigations and some of the patients by morphopathological studies. In the first part, the standard EEG modifications in relation with the clinical pictures and with the affected arterial field are presented. In the second part, the aspects of the computerized EEG recordings with the carrying out of the cortical EEG mappings which have brought important contributions in setting down the topography of the infarctions are discussed. The third part presents the results of the polysomnographic recordings of the 70 selected cases with ischaemic vertebro-basilar attacks without disorders of consciousness (32 cases), with attacks accompanied by symptomatic hypersomnias (13 cases), with ischaemic attacks accompanied by insomnia (5 cases) and with ischaemic attacks with disorders of consciousness (20 cases). The opinion of the authors on the possible relations between the disturbances of the vigilance, the perturbations of the polysomnographic organization of sleep-wakefulness cycles (with the realisation of some interesting competitive dysfunctions between the three states of vigilance) and the electrographic anomalies are discussed.

Adult↗
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Clinical, EEG, electromyographic and polysomnographic studies in restless legs syndrome caused by magnesium deficiency.

The present paper reports biochemical and neurophysiological investigations in ten cases with restless leg syndrome. Other neuropsychiatric affections and factors which could generate the symptomatology of restless legs syndrome were not included. The EEG recordings demonstrated evident reticular neuronal hypersynchrony generated by hyperpnoea (sinusoidal slow waves). The classical EEG investigations pointed out neuromuscular hyperexcitability, but some modifications of the functional parameters of the neuromuscular excitability and conductibility (signs of neuropathy) were also noticed. In all the cases, continuous 8-hour polysomnographic recordings and monitorization on infrared TV screen were performed. Investigations reported: important disorders of sleep organization, agitated sleep with frequent periods of nocturnal awakenings, increase of the durations and percentages of light slow-wave sleep (LSWS) and rapid and frequent changes of various stages of LSWS, a decrease of duration and percentage of DSWS, a decrease of duration and percentage of REM sleep (as in other parasomnias caused by magnesium deficiency) and nocturnal EEG anomalies (long discharges of sinusoidal slow waves, of sharp waves and of sharp slow waves appearing in the LSWS stages with the disappearance in the REM sleep).

Adult↗