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Abstract
Background: To observe outcome in a cohort of patients with severe acute pancreatitis receiving multiple anti‐oxidant therapy. Methods: An observational study was carried out in 46 consecutive patients with acute pancreatitis fulfilling current Atlanta consensus criteria for severe disease. All patients received multiple anti‐oxidant therapy based on intravenous selenium, N‐acetylcysteine and ascorbic acid plus β‐carotene and α‐tocopherol delivered via nasogastric tube. Principal outcomes were the effect of anti‐oxidant supplementation on anti‐oxidant levels, morbidity and mortality in patients on anti‐oxidant therapy, case‐control analysis of observed survival compared to predicted survival derived from logistic organ dysfunction score (LODS), logistic regression analysis of factors influencing outcome and side effect profile of anti‐oxidant therapy. Results: Paired baseline and post‐supplementation data were available for 25 patients and revealed that anti‐oxidant supplementation restored vitamin C (P = 0.003) and selenium (P = 0.028) toward normal. In univariate survival analysis, patient survival to discharge was best predicted by admission APACHE‐II score with relative risk of death increasing 12.6% for each unit increase (95% CI 6.0% to 19.6%). The mean LODS calculated on admission to hospital was 3.7 (standard error of the mean 4.1) giving a predicted mortality for the cohort of 21%. The observed in‐hospital mortality was 43%. Conclusions: Case‐control analyses do not appear to demonstrate any benefit from the multiple anti‐oxidant combination of selenium, N‐acetylcysteine and ascorbic acid in severe acute pancreatitis.