کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6088239 | 1207692 | 2015 | 7 صفحه PDF | دانلود رایگان |
BackgroundAdrenal dysfunction is frequently reported in severe acute hepatitis using serum total cortisol.AimsBecause 90% of serum cortisol is bound to proteins that are altered during stress, we investigated the effect of decreased cortisol-binding proteins on serum total and free cortisol in severe acute hepatitis.Methods43 severe and 31 non-severe acute hepatitis and 29 healthy controls were enrolled consecutively and studied prospectively. Baseline (T0) and cosyntropin-stimulated (T60) serum total and free cortisol concentrations were measured.ResultsT0 and T60 serum total cortisol did not differ significantly between severe, non-severe hepatitis and healthy controls. Conversely, serum free cortisol (T0p = 0.012; T60p < 0.001) concentrations increased from healthy controls to severe hepatitis, accompanied by a decrease in corticosteroid-binding globulin and albumin (all p < 0.001). In acute hepatitis (n = 74), patients with “low” corticosteroid-binding globulin (<28 mg/L) had higher T0 serum free cortisol than others (103.1 [61.2-157] vs. 56.6 [43.6-81.9] nmol/L, p = 0.0024). Analysis of covariance showed that at equal concentration of total cortisol, the free cortisol concentration was significantly higher in severe than in non-severe hepatitis (p < 0.001) or healthy controls (p < 0.001).ConclusionsIn severe hepatitis, the decrease in cortisol-binding proteins impairs correct diagnosis of adrenal dysfunction. This could be corrected by measuring or estimating free cortisol.
Journal: Digestive and Liver Disease - Volume 47, Issue 9, September 2015, Pages 783-789