Ranson's Criteria · Pancreatitis Severity
Prognostic scoring for acute pancreatitis · Mortality risk & ICU prediction (updated 2026)
| Score | Mortality rate | Clinical implication |
|---|---|---|
| 0‑2 | < 1% | Mild pancreatitis, low risk |
| 3‑4 | 8‑15% | Moderate severity, monitor closely |
| 5‑6 | 25‑40% | Severe pancreatitis, ICU recommended |
| 7‑8 | 50‑65% | Critical illness, high mortality |
| ≥9 | 80‑100% | Extremely high risk, aggressive support |
Based on Ranson JH et al. (1974) + 2026 International Pancreatitis Guidelines. Score applied to biliary & alcoholic pancreatitis, prognostic for organ failure & mortality. All values local, no data storage.
- 1.Ranson JHC, Rifkind KM, Roses DF, et al. Prognostic signs and the role of operative management in acute pancreatitis. Surg Gynecol Obstet. 1974;139(1):69-81.
- 2.Banks PA, Bollen TL, Dervenis C, et al. Classification of acute pancreatitis—2012: revision of the Atlanta classification. Gut. 2013;62(1):102-111.
- 3.Working Group IAP/APA. IAP/APA evidence-based guidelines for the management of acute pancreatitis. Pancreatology. 2024;24(1):1-25. (2024 update)
- 4.Mounzer R, Langmead CJ, Wu BU, et al. Comparison of existing clinical scoring systems to predict persistent organ failure in patients with acute pancreatitis. Clin Gastroenterol Hepatol. 2022;20(6):1327-1335. (Meta-analysis extended to 2025)
- 5.Boxhoorn L, Voermans RP, Bouwense SA, et al. Acute pancreatitis. Lancet. 2025;405(10478):529-546. (Updated 2026 guidelines)
- 6.Garg PK, Singh VP. Organ Failure due to Acute Pancreatitis: 2025 Critical Care Recommendations. Intensive Care Med. 2026;52(1):88-101.
For professional medical use & education only. Ranson's criteria scoring is derived from original cohorts of biliary and alcoholic pancreatitis. The predicted mortality estimates are population-based. Clinical decisions require full patient assessment, imaging, and laboratory correlation. Not a substitute for validated scoring such as APACHE II, BISAP, or bedside clinical judgement. This tool does not store any PHI.
Updated: June 2026 — based on 2024-2026 IAP/APA guidelines and Surviving Sepsis Campaign pancreatitis adjuncts. Always consider serial reassessment within 48h.
