cliot (version 1.0.0)

bisap_score: BISAP Score for Pancreatitis Mortality

Description

Calculates the BISAP (Bedside Index for Severity in Acute Pancreatitis) score to estimate in-hospital mortality risk. This simple 5-point scoring system uses data available within the first 24 hours of admission.

Usage

bisap_score(bun, impaired_mental_status, sirs_criteria_met, age,
            pleural_effusion, bun_units = "mg/dL")

Value

A list containing:

BISAP_Score

The calculated score (Range 0-5).

Mortality_Risk

Risk stratification (Low vs. High).

Arguments

bun

Numeric. Blood Urea Nitrogen level. (> 25 mg/dL adds +1 point).

impaired_mental_status

Numeric (0 or 1). Evidence of impaired mental status (Glasgow Coma Scale < 15). (1 = Yes, +1 point).

sirs_criteria_met

Numeric (0 or 1). Does the patient meet >= 2 SIRS criteria? (1 = Yes, +1 point).

age

Numeric. Patient age in years. (> 60 years adds +1 point).

pleural_effusion

Numeric (0 or 1). Presence of pleural effusion on imaging. (1 = Yes, +1 point).

bun_units

String. Units for BUN. "mg/dL" (default) or "mmol/L".

References

Wu BU, Johannes RS, Sun X, Tabak Y, Conwell DL, Banks PA. The early prediction of mortality in acute pancreatitis: a large population-based study. Gut. 2008;57(12):1698-1703. doi:10.1136/gut.2008.152702

Examples

# Example 1: High Risk
# BUN 30 (+1), Altered mental status (+1), SIRS (+1), Age 65 (+1), No effusion
# Score = 4
bisap_score(30, 1, 1, 65, 0)

# Example 2: Low Risk
# BUN 15 (0), Normal mental status (0), No SIRS (0), Age 40 (0), No effusion (0)
# Score = 0
bisap_score(15, 0, 0, 40, 0)