TIPS Implantation Raises Leptin Levels in Patients with Liver Cirrhosis

Abstract

Increased leptin levels in patients with liver cirrhosis are postulated to result in malnutrition and increased energy expenditure. Since cirrhotic patients show improved nutritional status after a transjugular intrahepatic portosystemic stent shunt (TIPS), it was the aim of this study to evaluate plasma leptin levels and their influence on nutritional status prior to and after the TIPS procedure. We evaluated plasma leptin levels, body mass index (BMI), Child-Pugh score and pertinent biochemical parameters in 31 patients (19 men and 12 women) with severe complications of liver cirrhosis (74 % ethyltoxic men, 50 % ethyltoxic in women), prior to and after TIPS. Nineteen cirrhotic patients without TIPS served as controls.

In women ascitic-free BMI significantly increased (from 22.8 ± 4.6 kg/m² to 23.9 ± 4.9; p = 0.004 three months after TIPS), whereas in men only a tendency toward higher values (26.1 ± 4.7 vs. 26.7 ± 4.4; p = 0.28) was found. Analysis of peripheral venous leptin concentrations before and three months after TIPS revealed a significant increase in women (11.9 ± 8.8 ng/ml vs. 18.6 ± 14.9; p = 0.009) and in men (7.7 ± 6.2 ng/ml vs. 12.2 ± 9.0; p = 0.005). In addition, the leptin-BMI ratio increase significantly in women and men three months after TIPS implantation (women 0.49 ± 0.29 vs. 0.73 ± 0.52; p = 0.017; men 0.28 ± 0.22 vs. 0.43 ± 0.28; p = 0.002). On the other hand, patients without TIPS implantation showed no significant alterations of BMI and peripheral venous leptin concentrations.

After TIPS implantation in liver cirrhotic patients, leptin levels were increased and the nutritional status improved. Therefore, our analysis suggests that in patients with predominantly ethyltoxic liver cirrhosis, elevated leptin levels are not a major reason for poorer body composition.

Key words

Liver cirrhosis - TIPS - BMI - leptin - malnutrition

References

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1 The first two authors contributed equally to this paper.