Bedside steps

1. 1
   Alvarado

   Likelihood of acute appendicitis (MANTRELS).

   Calculate here · Alvarado ▾Full details →
2. 2
   Acute cholangitis TG18

   By Tokyo Guidelines TG18 grading (organ dysfunction and moderate criteria), gives biliary-drainage timing and antibioti…

   Calculate here · Acute cholangitis TG18 ▾Full details →
3. 3
   Acute cholecystitis TG18

   By Tokyo Guidelines TG18 grading and surgical risk, gives direction for laparoscopic cholecystectomy/percutaneous chole…

   Calculate here · Acute cholecystitis TG18 ▾Full details →
4. 4
   MPIAlternate branch

   Eight perioperative parameters predicting mortality in secondary peritonitis (Mannheim Peritonitis Index).

   Calculate here · MPI ▾Full details →
5. 5
   TG18 cholecystitisAlternate branch

   Determine acute cholecystitis severity grade (I/II/III) per Tokyo Guidelines 2018.

   Calculate here · TG18 cholecystitis ▾Full details →

[Abdominal pain / biliary / bowel · bedside workflow]
Alvarado：not calculated
Acute cholangitis TG18：not calculated
Acute cholecystitis TG18：not calculated
MPI：not calculated
TG18 cholecystitis：not calculated
Guideline：Acute abdomen / biliary–bowel guidance (see tool pages for exact version notes)
Reviewed：2026-09-05
For licensed clinicians only. Local calculation; does not replace clinical judgment or individualized shared decision-making. Integrate guideline version, patient preference, and bleed–thrombosis trade-offs.

For licensed clinicians only. Local calculation; does not replace clinical judgment or individualized shared decision-making. Integrate guideline version, patient preference, and bleed–thrombosis trade-offs.