Acute Cholecystitis Severity Grading (Tokyo TG18) — free guideline decision tool
This tool grades acute cholecystitis severity (I/II/III) by the Tokyo Guidelines 2018, which links grade to organ dysfunction, local inflammation, and the appropriate management pathway.
Open guideline tool →Guideline-based
Implements the decision logic from published clinical guidelines.
Runs in your browser
No installation. Enter the patient's values and get a guideline recommendation instantly.
Data stays local
Nothing is uploaded. Results are for licensed clinicians only.
Common questions
What does Acute Cholecystitis Severity Grading (Tokyo TG18) do?
Use after diagnosing acute cholecystitis to assign a severity grade and choose between early cholecystectomy, percutaneous cholecystostomy, or organ support with urgent drainage.
How is the result calculated?
Assess Grade III first (any organ dysfunction: cardiovascular/neurologic/respiratory/renal/hepatic/hematologic), then Grade II (WBC > 18,000, tender RUQ mass, duration > 72 h, or marked local inflammation); otherwise Grade I.
Is this a substitute for clinical judgement?
No. All results are decision-support only, for licensed clinicians. They must be individualized to the whole patient and the latest guideline version.
Run Acute Cholecystitis Severity Grading (Tokyo TG18) now
This tool grades acute cholecystitis severity (I/II/III) by the Tokyo Guidelines 2018, which links grade to organ dysfunction, local inflammation, and the appropriate management pathway.
Open guideline tool →For licensed clinicians. Not a substitute for clinical judgement.