Electroencephalograms in patients with progressive dialytic encephalopathy.
We compared the electroencephalograms (EEGs) of 17 patients with progressive dialytic encephalopathy with 17 chronic renal failure patients who did not have dialytic encephalopathy and who had been matched for age, type and duration of dialysis. The EEGs were analyzed in a semiquantitative fashion by counting the number of paroxysms of frontal intermittent rhythmic delta activity and frontocentral spike-waves, and by grading the amount of diffuse theta and delta waves during waking EEG on a 4-point scale. The two most important EEG predictors of dialytic encephalopathy in the present study consisted of synchronous and symmetrical frontal intermittent rhythmic delta waves and frontocentral spike-waves, confirming our previous observations.
D000328:Adult; D000368:Aged; D001037:Aphasia / Q000523:psychology*; D003700:Delta Rhythm; D003704:Dementia / Q000523:psychology*; D004569:Electroencephalography / Q000379:methods*; D005071:Evoked Potentials; D005260:Female; D006801:Humans; D007676:Kidney Failure, Chronic / Q000523:psychology*; D008297:Male; D008875:Middle Aged; D009207:Myoclonus / Q000523:psychology*; D006435:Renal Dialysis / Q000523:psychology*; D013826:Theta Rhythm