AAST Severity Grade for Acute Cholecystitis
AAST anatomic severity grade I to V for acute cholecystitis measures how far the disease has spread.
Open the calculator → Runs in your browser. Data leaves only if you deliberately send a problem report from the interactive tool.
Example
- Imaging grade
- inflammation confined to the gallbladder
- Operative grade
- a perforation the right upper quadrant has walled off
Result: AAST grade III of V, set by the operative grade rather than the imaging grade.
The tool opens with these values already filled in. Replace them with your own.
What you enter
- Imaging grade
- Operative grade
- Clinical or pathologic grade
How this is calculated
Tominaga GT, Staudenmayer KL, Shafi S, Schuster KM, Savage SA, Ross S, et al. The American Association for the Surgery of Trauma grading scale for 16 emergency general surgery conditions. J Trauma Acute Care Surg. 2016;81(3):593-602. Read the source ↗
A reference and educational tool. Not medical, legal, or financial advice, and not a substitute for clinician judgment.