Abstract

We wondered whether nonenhanced computed tomography (CT) within 48 hours of admission could identify individuals at risk for higher mortality from acute pancreatitis. Data from the international phase III study of the platelet-activating factor-inhibitor Lexipafant was used to analyze noncontrast CT versus acute pancreatitis mortality. Nonenhanced CT examinations of the abdomen from the trial were classified by disease severity (Balthazar grades A-E) and then correlated with patient survival. Among the 477 individuals who underwent CT within 48 hours of admission and 220 individuals who did so over the subsequent 6 days, higher CT grades were associated with increased mortality. Each unit increase in Balthazar grade during the initial 48 hours was associated with an estimated increase in the risk of mortality of 33%, and this trend increased to 50% if pancreatic enlargement and peripancreatic stranding (grades B and C) were combined (P<0.05). CT grade correlated minimally with Ranson, Glasgow, or APACHE II score during the initial 48 hours; however, this correlation improved over 3-8 days. Early nonenhanced abdominal CT in patients with acute pancreatitis is a valuable prognostic indicator of mortality in acute pancreatitis, even among patients without clinical features of severe acute pancreatitis.

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