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Bedside Index of Severity in Acute Pancreatitis (BISAP) score

Within the first 24 hours of hospitalisation
BUN > 25mg/dL (8.9 mmol/L)
Impaired mental status (Glasgow coma score < 15)
Evidence of SIRS (Severe Inflammatory Response Syndrome)
(any 2 of the 4 criteria below)
  • Temp >38°C (100.4°F) or < 36°C (96.8°F)
  • Heart rate > 90/minute
  • Respiratory rate > 20/minute or PaCO2 < 32 mmHg (4.3 kPa)
  • WBC > 12,000/uL, < 4,000/uL, or > 10% immature (band) forms

Age > 60 years
Pleural effusion
BISAP score:
Mortality rate: %

 

Ranson's Criteria

At admission
Age > 55 years
WBC > 16,000/ul
Glucose > 11.1 mmol/L (> 200 mg/dL)
LDH > 350 IU/L
AST > 250 IU/L
During initial 48 hours
Haematocrit decrease > 10%
BUN increase > 1.8 mmol/L (> 5mg/dL)
Calcium < 2 mmol/L (< 8 mg/dL)
PaO2 < 60 mmHg
Base deficit > 4 mEq/L
Fluid sequestration > 6 L
Ranson's score:
Mortality rate:

 

Formula

BISAP score Mortality rate
0-1 0.1-0.7%
2 1.9-2.1%
3 5.3-8.3%
4 12.7-19.3%
5 22.5-26.7%

Ranson's score Mortality
0-2 ~1%
3-5 15-20%
6 40%
>6 100% (associated with more systemic complications)