Serum zinc level in liver cirrhosis with hepatic encephalopathy and its correlation with different stages of hepatic encephalopathy.

Background: Hepatic encephalopathy (HE) severe complication of liver cirrhosis with high mortality. Few studies have found zinc deficiency in liver cirrhosis and HE patients and found it as a precipitating factor for the development of HE. This study was done to measure the serum zinc level in patients with liver cirrhosis with HE and a correlation was obtained between serum zinc level with grades of HE.

Material and methods: A cross-sectional observational study was done on 150 patients with liver cirrhosis with HE at a tertiary care center in Jharkhand. All cases were evaluated by history taking, clinical examination, and a questionnaire and classified into different WHC grades of HE and CPC classes of cirrhosis. Routine blood investigations, imaging studies, and morning serum zinc levels were done for all patients.

Results: Majority of patients with liver cirrhosis with HE had zinc deficiency. There was a statistically highly significant (P < .00001) association between low serum zinc levels and WHC grades of HE. The serum zinc levels in different classes of cirrhosis showed highly significant differences (P < .00001). The mean serum zinc level was significantly low in patients who died (35.56 ± 11.65 vs 48.36 ± 10.91, P < .0001). The study revealed a strong positive correlation (r = .88, P = .048) between serum zinc and serum albumin levels.

Conclusion: Serum zinc is deficient in patients with liver cirrhosis and HE. Zinc deficiency is significantly associated with higher severity of cirrhosis and higher grades of HE. All patients with liver cirrhosis with HE and hypoalbuminemia should be evaluated for zinc deficiency.