Revised Atlanta classification of severity of acute pancreatitis
| Mild | Moderate to severe | Severe |
|---|---|---|
| Absence of organ failure | Organ failure for < 48 hours | Persistent organ failure for > 48 hours |
| Absence of local complicationsa | Local complicationsa |
↵a Local complications: interstitial edematous pancreatitis, necrotizing pancreatitis, pancreatic pseudocyst, necrotic collection, and pleural effusion.
Based on information in references 8 and 14.