Objective To investigate the change and the clinical significance of serum thyroid hormone levels in the patients of different durations of hepatitis B.Methods Serum concentrations of T 3, T 4, FT 3, FT 4, TSH were detected with radioimmunoassay (RIA) in 83 patients with different durations of hepatitis B, 32 patients with non-hepatitis B infectious diseases and 37 normal controls. Results Serum T 4 and FT 4 levels increased in patients with acute hepatitis B. Levels of FT 3, FT 4 and TSH decreased in patients with chronic hepatitis B. The concentrations of serum T 3, FT 3 and TSH decreased in patients with liver cirrhosis. Serum T 3, FT 3, FT 4 and TSH levels decreased in severe hepatitis patients. Conclusion Determining the concentrations of serum thyroid hormone might be used as an assistant index in evaluating the status of hepatitis B and the prognosis of the patients. |