Table 2.
Comparison of Atlanta, revised Atlanta and determinant based classification system of acute pancreatitis
| Atlanta[7] | Revised atlanta[27] | Determinant based system[28] | |
| Mild | Minimal organ dysfunction and an uneventful recovery; lacks the features of severe acute pancreatitis. Usually normal enhancement of pancreatic parenchyma on contrast-enhanced computed tomography | No organ failure | No (peri)pancreatic necrosis and no organ failure2 |
| No local or systemic complications | |||
| Moderate | Organ failure2 that resolves within 48 h (transient organ failure) and/or local or systemic complications without persistent organ failure | Sterile (peri)pancreatic necrosis and/or transient organ failure (< 48 h)2 | |
| Severe | Associated with organ failure1 and/or local complications such as acute fluid collections, necrosis, abscess or pseudocyst | Persistent organ failure2 (> 48 h) | Infected (peri)pancreatic necrosis or persistent organ failure (> 48 h)2 |
| Single organ failure | |||
| Multiple organ failure | |||
| Critical | Infected (peri)pancreatic necrosis and persistent organ failure (> 48 h)2 |
1
Organ failure and systemic complications defined as - Shock (Systolic blood pressure < 90 mmHg), Pulmonary insufficiency (PaO2 ≤ 60 mmHg), Renal failure (Creatinine ≥ 177 μmol/L or ≤ 2 mg/dL after rehydration), Gastrointestinal bleeding (500 mL in 24 h), Disseminated intravascular coagulation (Platelets ≤ 100000/mm, fibrinogen < 1.0 g/L and fibrin-split products > 80 μg/L), and Severe metabolic disturbances (Calcium ≤ 1.87 mmol/L or ≤ 7.5 mg/dL);