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Journal of Clinical and Experimental Hepatology logoLink to Journal of Clinical and Experimental Hepatology
. 2012 Jan 2;1(3):190–198. doi: 10.1016/S0973-6883(11)60237-5

Nutritional Status and Liver Transplantation

Manuela Merli 1,*, Michela Giusto 1, Valerio Giannelli 1, Cristina Lucidi 1, Oliviero Riggio 1
PMCID: PMC3940406  PMID: 25755385

Abstract

Chronic liver disease has a profound effect on nutritional status and undernourishment is almost universally present in patients with end-stage liver disease undergoing liver transplantation. In the last decades, due to epidemiological changes, a trend showing an increase in patients with end-stage liver disease and associated obesity has also been reported in developed countries. Nutrition abnormalities may influence the outcome after transplantation therefore, the importance to carefully assess the nutritional status in the work-up of patients candidates for liver transplantation is widely accepted. More attention has been given to malnourished patients as they represent the greater number. The subjective global nutritional assessment and anthropometric measurements are recognized in current guidelines to be adequate in identifying those patients at risk of malnutrition. Cirrhotic patients with a depletion in lean body mass and fat deposits have an increased surgical risk and malnutrition may impact on morbidity, mortality and costs in the post-transplantation setting. For this reason an adequate calorie and protein intake should always be ensured to malnourished cirrhotic patient either through the diet, or using oral nutritional supplements or by enteral or parenteral nutrition although studies supporting the efficacy of nutritional supplementation in improving the clinical outcomes after transplantation are still scarce. When liver function is restored, an amelioration in the nutritional status is expected. After liver transplantation in fact dietary intake rapidly normalizes and fat mass is progressively regained while the recovery of muscle mass can be slower. In some patients unregulated weight gain may lead to over-nutrition and may favor metabolic disorders (hypertension, hyperglycemia, hyperlipidemia). This condition, defined as ‘metabolic syndrome’, may play a negative role on the overall survival of liver transplant patients. In this report we review data on nutrition and liver transplantation.

Keywords: Body weight, cirrhosis, end stage liver disease, malnutrition, nutritional assessment, nutritional support or nutritional therapy, obesity, outcomes

Abbreviations: BCAA, branched chain amino acids; BMI, body mass index; LT, liver transplantation; MELD, model for end-stage liver disease; SGA, subjective global assessment for nutrition

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