[Disturbed brain bioelectric activity in patients with liver encephalopathy and cirrhosis].
Brain bioelectric activity in 52 patients with liver cirrhosis (LC) was measured with respect to the degree of hepatic encephalopathy (HE) from the results of background and reactive EEG using West Haven criteria. As the severity of LC increased, signs of HE on background EEG appeared, index frequency and a-rhythm decreased and its amplitude increased. Reactive EEG was indicative of reduced duration, intensity, and decrement rate of responses to orientational loading (visual, somatosensorial, and auditory evoked potentials). It is concluded that EEG studies permit to predict dynamics of LC clinical course and may be used as an additional diagnostic tool, especially at the preclinical stage of HE.
A S
AS
Alekseeva
E I
EI
Beloborodova
M I
MI
Rachkovskiĭ
L P
LP
Filippova
E G
EG
Lambrova
D000328:Adult; D000368:Aged; D004569:Electroencephalography / Q000379:methods*; D005071:Evoked Potentials / Q000502:physiology*; D005260:Female; D006501:Hepatic Encephalopathy / Q000175:diagnosis / Q000503:physiopathology*; D006801:Humans; D008103:Liver Cirrhosis / Q000175:diagnosis / Q000503:physiopathology*; D008297:Male; D008875:Middle Aged; D011379:Prognosis; D012720:Severity of Illness Index