The history of hepatic encephalopathy (HE) is briefly reviewed since the beginning of western medicine by Hippocrates. For about 2000 years the main evidence was the mere association between jaundice, fever and delirium. A clear link between delirium and cirrhosis was proven in the 17th century by Morgagni. In subsequent times the focus was manly the descriptions of symptoms and the only pathophysiological improvement was the evidence that jaundice, per se, does not alter brain function. Only at the end of the 19th century Hann et al proved the role of portal-systemic shunt and pf nitrogenous derivates in the pathophysiology of the syndrome. A terrific development of knowledge occurred in the last 60 years, after the works of Sherlock in London. Nowadays some consensus about HE was reached, so that new developments will likely occur.
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J+Clin+Exp+Hepatol 2015 ; 5 (Suppl 1): S4-6
