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J Gastroenterol. 2000;35 Suppl 12:7-12.

Nutritional treatment with branched-chain amino acids in advanced liver cirrhosis.

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Department of Internal Medicine and Gastroenterology, University of Bologna, Policlinico S Orsola, Italy.


During the last 20 years there has been much interest in nutritional treatment for patients with advanced cirrhosis. Most studies have measured the potential benefit of nutritional supplements of dietary proteins, generic protein hydrolysates, or specific branched-chain amino acid (BCAA)-enriched formulas in regard to nutritional parameters and hepatic encephalopathy. The issue is not definitively settled; data are conflicting and meta-analyses have failed to produce unequivocal results. A consensus review, recently produced under the auspices of the European Society for Parenteral and Enteral Nutrition, concluded that: (1) patients with cirrhosis tend to be hypermetabolic, and a higher-than-normal supply of dietary proteins is needed to achieve nitrogen balance; (2) most patients tolerate a normal or even increased dietary protein intake, without risk of hepatic encephalopathy; (3) a modified eating pattern, based on several meals and a late evening snack, is useful; (4) in severely malnourished patients, amino acid supplements may be considered to provide the necessary amount of proteins to meet protein requirements; (5) in a few patients intolerant to the required protein intake, BCAA supplements may be considered to provide the necessary nitrogen intake without detrimental effects on the mental state, perhaps even improving it. Future studies are needed to quantify the advantage of nutritional support with amino acids or BCAA supplements on overall well-being, complications, and ultimately survival with a long-lasting disease where self-perceived health-related quality of life is a major outcome.

[Indexed for MEDLINE]

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