Prevalence and prognostic value of quantified electroencephalogram (EEG) alterations in cirrhotic patients.

Abstract:

BACKGROUND/AIMS:The electroencephalogram (EEG) is frequently altered in cirrhotic patients. We, therefore, performed a study to ascertain the features and the prognosis of cirrhotic patients without current overt hepatic encephalopathy (OHE) who have EEG alterations. METHODS:A series of 296 consecutive cirrhotic patients who had undergone quantified-EEG was studied. The median follow-up was 442 days, 128 patients had bouts of OHE and 78 patients died from liver-related causes. Another group of 124 cirrhotic patients with a median follow-up of 223 days was examined to validate the prognostic model. RESULTS:EEG alterations were detected in 38% of the patients. The prevalence of EEG alterations was associated with the severity of cirrhosis (class B: odds ratio (OR) = 2.3, 95% confidence interval (CI) = 1.2-4.7; class C: OR = 3.5, 95% CI = 1.6-7.7), but not with the aetiology (alcoholic vs. non-alcoholic: OR = 0.9; 95% CI = 0.5-1.5). The EEG predicted the occurrence of OHE (chi2 = 26; P < 0.001) and mortality (chi2 = 34; P < 0.001), also adjusting for Child-Pugh class by a multivariate analysis. In the patients with a Child-Pugh score of > or = 8, the EEG discriminated between those patients with a higher 1-year risk of OHE (hazard ratio (HR) = 3.3, 95% CI = 1.8-6.1) and death (HR = 3.1, 95% CI = 1.7-5.6). CONCLUSIONS:In conclusion, quantified-EEG had a prognostic value for the occurrence of bouts of OHE and mortality in cirrhotic patients.

journal_name

J Hepatol

journal_title

Journal of hepatology

authors

Amodio P,Del Piccolo F,Pettenò E,Mapelli D,Angeli P,Iemmolo R,Muraca M,Musto C,Gerunda G,Rizzo C,Merkel C,Gatta A

doi

10.1016/s0168-8278(01)00129-5

subject

Has Abstract

pub_date

2001-07-01 00:00:00

pages

37-45

issue

1

eissn

0168-8278

issn

1600-0641

pii

S0168827801001295

journal_volume

35

pub_type

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