Acute Cholecystitis Severity & Management (TG18) — free guideline decision tool
This tool grades acute cholecystitis by Tokyo Guidelines TG18 and surgical risk and gives direction for cholecystectomy, percutaneous cholecystostomy, and antibiotics.
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 & Management (TG18) do?
Use to assign TG18 severity and choose between early laparoscopic cholecystectomy and percutaneous drainage based on grade and operative risk.
How is the result calculated?
Grade III = organ dysfunction; Grade II = any of WBC > 18,000/tender RUQ mass/symptoms > 72 h/marked local inflammation; otherwise Grade I. Low risk (CCI ≤ 5, ASA-PS ≤ 2) → early LC; high risk/severe → cholecystostomy first.
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 & Management (TG18) now
This tool grades acute cholecystitis by Tokyo Guidelines TG18 and surgical risk and gives direction for cholecystectomy, percutaneous cholecystostomy, and antibiotics.
Open guideline tool →For licensed clinicians. Not a substitute for clinical judgement.