How is the severity of acute pancreatitis classified?

Pancreatitis can be classified by severity according to the Revised ATLANTA criteria 2012

Mild
  • No organ failure (1)
  • No local complications (1)
Moderate
  • Transient organ failure (<48 hours) (1)
Severe
  • Local complications (1) +/-
  • Persistent organ failure (1)

*Local complications include:
Acute peripancreatic fluid collection
Pancreatic pseudocyst
Acute necrotic collection
Pleural effusion