Utility of Revised Atlanta Classification using CT & BISAP Clinical Scoring System in Determining Severity of Acute Pancreatitis & Prediction of Clinical Outcome
DOI:
https://doi.org/10.71393/xbzg4v49Keywords:
Acute Pancreatitis, Revised Atlanta Classification, BISAP Score, Severity AssessmentAbstract
Introduction: Acute pancreatitis ranges from mild disease to life-threatening complications. This study evaluates the Revised Atlanta CT classification and BISAP score, individually and combined, for predicting disease severity and clinical outcomes.
Aim & Objective: To determine the value of the Revised Atlanta classification and the BISAP scoring system in predicting the severity and clinical outcome of acute pancreatitis, and to assess whether their combination improves predictive ability.
Materials & Methods: A prospective observational study was conducted from May 2024 to November 2025 at Ramaiah Medical College hospitals, including 49 patients with first-episode acute pancreatitis who underwent CECT abdomen. Patients were classified according to the Revised Atlanta criteria and the BISAP scoring system. Clinical outcomes, including organ failure, infection, intervention requirement, duration of hospital stay, and mortality, were recorded and analyzed.
Results: The cohort predominantly comprised males (79.6%) in the 40-60 years age group. Interstitial edematous pancreatitis (IEP) was the most common CT finding (57.1%). According to the Revised Atlanta classification, 59.2% had mild, 36.7% moderately severe, and 4.1% severe acute pancreatitis. A BISAP score ≥3 was seen in 6.1% patients. Significant associations were observed between severity grade and BISAP score (p<0.001), duration of stay (p<0.001), organ failure (p<0.001), and infection (p<0.001). Patients with BISAP ≥3 had significantly longer hospital stay (10.7 vs 7.0 days, p=0.042). Mortality rate was 0%.
Conclusion: Both the Revised Atlanta CT classification and the BISAP scoring system effectively predict severity and clinical outcomes in acute pancreatitis. Their combination provides a comprehensive assessment, with BISAP identifying patients at risk for prolonged stay and organ failure, while the Revised Atlanta classification accurately grades morphological severity.
