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Medical AI Inquiry: You was designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.  Labels: OBJECTIVE, METHODS, RESULTS. Meshes: Acute Disease, Adrenal Cortex, Adult, Aged, Aged, 80 and over, Area Under Curve, Biomarkers, Carcinoma, Hepatocellular, Carrier Proteins, Chi-Square Distribution, Esophageal and Gastric Varices, Female, Gastrointestinal Hemorrhage, Greece, Humans, Hydrocortisone, Liver Cirrhosis, Liver Function Tests, Liver Neoplasms, Logistic Models, London, Male, Middle Aged, Multivariate Analysis, Predictive Value of Tests, Prognosis, Proportional Hazards Models, Prospective Studies, ROC Curve, Risk Factors, Serum Albumin, Serum Albumin, Human, Severity of Illness Index, Time Factors, Up-Regulation.
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Is higher free serum cortisol associated with worse survival in acute variceal bleeding because of cirrhosis : a prospective study? Context: Critical illness-related corticosteroid insufficiency has been reported in acute variceal bleeding (AVB). In cirrhosis, free serum cortisol (FC) is considered optimal to assess adrenal function. Salivary cortisol (SC) is considered a surrogate for FC. We evaluated FC and its prognostic role in AVB. Total serum cortisol, SC, cortisol-binding globulin, and FC (Coolens' formula) were evaluated in AVB (n=38) and in stable cirrhosis (CC) (n=31). A Cox proportional hazards model was evaluated for 6-week survival. In AVB, the median FC and SC levels were higher with worse liver dysfunction [Child-Pugh (CP) A/B/C: 1.59/2.62/3.26 μg/dl, P=0.019; CPA/B/C: 0.48/0.897/1.81 μg/ml, P<0.001, respectively]. In AVB compared with CC, median total serum cortisol: 24.3 versus 11.6 μg/dl (P<0.001), SC: 0.86 versus 0.407 μg/ml (P<0.001); FC 2.4 versus 0.57 μg/dl (P<0.001). In AVB, 5-day rebleeding was 10.5%, and 6-week and total mortality were 21.1 and 23.7%, respectively. Independent associations with 6-week mortality in AVB were FC at least 3.2 μg/dl (P<0.001), hepatocellular carcinoma (P<0.001), CPC (P<0.001), and early rebleeding (P<0.001). Among patients with normal cortisol-binding globulin (n=14) and albumin (n=31), the factors were hepatocellular carcinoma (P=0.003), CP (P=0.003), and FC (P=0.036). SC was also found to be an independent predictor of 6-week mortality (P<0.001). Area under the curve of FC for predicting 6-week mortality was 0.79.
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Higher FC is present in cirrhosis with AVB compared with CC and is associated independently with bleeding-related mortality. However, whether high FC solely indicates the severity of illness or whether there is significant adrenal insufficiency cannot be discerned. Final Decision: yes