201Comparative evaluation of BISAP and Ranson’s scoring systems in predicting severity of acute pancreatitis: A prospective observational study

Abstract

Background: Early prediction of severity in acute pancreatitis is vital for guiding management and improving patient outcomes. Among the various prognostic scoring systems, the Bedside Index for Severity in Acute Pancreatitis (BISAP) and Ranson’s score are widely used but differ in timing and complexity.

Aim: To compare the accuracy of BISAP and Ranson’s scores in predicting severe acute pancreatitis according to the Revised Atlanta Classification.

Methods: This prospective study was conducted at GSL Medical College, Rajahmundry, from March 2018 to May 2018, involving 60 patients with acute pancreatitis. BISAP scores were calculated within 24 hours of admission, and Ranson’s scores were assessed at 48 hours. Severity was classified using the Revised Atlanta criteria. Sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), and area under the ROC curve (AUC) were calculated to compare prognostic performance.

Results: Both BISAP and Ranson’s scores demonstrated excellent predictive accuracy for severe acute pancreatitis with AUCs of 0.921 and 0.938, respectively. BISAP offered comparable sensitivity (87.5%) and specificity (92.3%) to Ranson’s (90.0% and 88.5%), with the advantage of early application.

Conclusion: BISAP is a simple, rapid, and reliable alternative to Ranson’s score for early prediction of severe acute pancreatitis.

Keywords: Acute pancreatitis; BISAP score; Ranson’s score; Severity prediction; Prognostic acc