ICU Scoring Systems for Acute Pancreatitis

Primary ICU Scoring Systems

The American College of Surgeons recommends using APACHE II as a general ICU scoring system that can be calculated at any time and used for daily ongoing assessment, with a score ≥8 indicating severe acute pancreatitis, and demonstrates the highest accuracy (AUC 0.88) for predicting severe acute pancreatitis and has 95% sensitivity for detecting complications when score ≥6 1, 2, 3
The World Society of Emergency Surgery suggests using SOFA to follow the evolving disease process in critically ill ICU patients through repeated scoring, assessing 6 organ systems, and has superior performance in ICU pancreatitis patients 4, 5
The American Gastroenterological Association recommends BISAP as the simplest bedside scoring system with accuracy comparable to APACHE II, but can be calculated within 24 hours of admission, with a BISAP score ≥2 indicating severe acute pancreatitis, and AUC 0.80 for severity and 0.93 for organ failure 1, 3

The European Society of Intensive Care Medicine suggests using SAPS II, which is based on 12 physiologic variables, age, type of admission, and 3 underlying disease variables, and demonstrated excellent discriminative power with AUC 0.83 5
The British Society of Gastroenterology recommends using traditional 48-Hour Scores, such as Ranson score ≥3 and Glasgow score ≥3, which indicate severe disease but require 48 hours to complete, with sensitivity 75-87% and specificity 68-77.5% 1, 2, 3

The World Society of Emergency Surgery recommends calculating BISAP score immediately for rapid severity assessment, and APACHE II score for comprehensive ICU risk stratification within the first 24 hours 2, 3, 5
The Society of Critical Care Medicine suggests measuring baseline CRP and monitoring for organ failure development within the first 24 hours, and beginning daily SOFA scoring for ongoing organ dysfunction monitoring in severe cases at 48 hours 3, 4
The American College of Radiology recommends performing contrast-enhanced CT with CT Severity Index (CTSI) calculation in patients with predicted severe disease on days 3-10, and continuing daily APACHE II and SOFA scoring to track disease trajectory 2, 3, 4