Acute pancreatitis classification
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Raviteja Guddeti, M.B.B.S. [2]
Overview
Acute pancreatitis may be classified according to the severity of disease into 2 subtypes: mild (interstitial or edematous) and severe (necrotising or organ failure).
Classification
| Atlanta criteria (1993) | Atlanta Revision (2013) |
|---|---|
| Mild acute pancreatitis | Mild acute pancreatitis |
| Absence of organ failure | Absence of organ failure |
| Absence of local complications | Absence of local complications |
| Severe acute pancreatitis | Moderately severe acute pancreatitis |
| 1. Local complications AND/OR | 1. Local complications AND/OR |
| 2. Organ failure | 2. Transient organ failure (< 48 h) |
| GI bleeding (> 500 cc/24 hr) | Severe acute pancreatitis |
| Shock – SBP ≤ 90 mm Hg | Persistent organ failure > 48 h |
| PaO 2 ≤ 60% | |
| Creatinine ≥ 2 mg/dl |
The revised Atlanta classification for acute pancreatitis classifies it as:
- Mild pancreatitis (interstitial or edematous): inflammation of parenchyma of pancreas without local or systemic complications.
- Severe pancreatitis (necrotising or organ failure): severe pancreatitis causing local and systemic manifestations.[1]
Acute pancreatitis is further distinguished clinically into early phase (1st week) and late phase (after the 1st week).