Journal
CLINICAL GASTROENTEROLOGY AND HEPATOLOGY
Volume 15, Issue 6, Pages 934-936Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.cgh.2016.10.028
Keywords
Hepatic Encephalopathy; Liver Fibrosis; Prognostic Factor; Sarcopenia; SMI; TIPS; MELD
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BACKGROUND & AIMS: Hepatic encephalopathy (HE) is an important complication in patients with cirrhosis who received transjugular intrahepatic portosystemic shunts (TIPS). We investigated whether a decrease in muscle mass was associated independently with the occurrence of HE after TIPS. METHODS: We performed a prospective study of 46 consecutive patients with cirrhosis (mean age, 58.6 +/- 9.1 y; mean model for end-stage liver disease score, 11.3 +/- 3.3; mean Child-Pugh score, 7.6 +/- 1.5) who received TIPS from January 2013 through December 2014 at a tertiary center in Rome, Italy. All patients underwent computed tomography analysis at the level of the third lumbar vertebrae to determine the skeletal muscle index; sarcopenia was defined by sex-specific cut-off values. We estimated the incidence of the first episode of HE after TIPS, taking into account the competing risk nature of the data (death or liver transplantation). RESULTS: Twenty-six patients (57%) were found to have sarcopenia. Twenty-one patients (46%) developed overt HE in the 7 +/- 9 months after TIPS placement; all of these patients were sarcopenic, according to the skeletal muscle index. Of the 25 patients without HE after TIPS, only 5 had sarcopenia. In multivariate analysis, model for end-stage liver disease score (subdistribution hazard ratio, 1.16; 95% confidence interval, 1.01-1.34; P = .043) and sarcopenia (subdistribution hazard ratio, 31.3; 95% confidence interval, 4.5-218.07; P < .001) were associated independently with the development of HE after TIPS placement. CONCLUSIONS: In a prospective study of 46 patients with cirrhosis, we found muscle wasting, probably owing to reduced processing of ammonia, to be associated with the development of HE after TIPS placement. Sarcopenia should be considered in selecting patients for TIPS therapy. Nutritional status should be evaluated in patients with sarcopenia before TIPS placement, which might reduce the incidence of HE.
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