Key Points
- Use the highest‑yield diagnostic test early; do not let testing delay time‑critical therapy.
- Set objective targets and reassess frequently.
- Plan definitive source control or disease‑specific therapy when indicated; document follow‑up and patient education.
Algorithm
- Diagnose using clinical features + labs + imaging per Tokyo criteria.
- Start broad antibiotics and resuscitate; grade severity.
- Arrange urgent ERCP for drainage; PTBD or surgery if ERCP not possible; address underlying cause.
Clinical Synopsis & Reasoning
Charcot triad (fever, jaundice, RUQ pain) ± hypotension/AMS suggests cholangitis. Use Tokyo Guidelines for severity grading. Start broad IV antibiotics and arrange urgent biliary drainage—ERCP preferred; percutaneous transhepatic biliary drainage if ERCP not feasible.
Treatment Strategy & Disposition
Stabilize ABCs. Initiate guideline‑concordant first‑line therapy with precise dosing and continuous monitoring. Escalate to advanced/procedural interventions based on explicit failure criteria. Define ICU, step‑down, and ward disposition triggers; involve specialty teams early.
Epidemiology / Risk Factors
- Risk varies by comorbidity and precipitants; see citations for condition‑specific data.
Investigations
| Test | Role / Rationale | Typical Findings | Notes |
|---|---|---|---|
| LFTs and bilirubin, blood cultures | Diagnosis | Cholestatic pattern; bacteremia common | — |
| Ultrasound ± MRCP/CT | Etiology | CBD dilation/stone/stricture | MRCP for planning |
| Severity assessment (Tokyo Guidelines) | Disposition | Grade I–III | Guides timing of drainage |
High-Risk & Disposition Triggers
| Trigger | Why it matters | Action |
|---|---|---|
| Tokyo Grade III (organ dysfunction) | High mortality | ICU; urgent ERCP/PTBD |
| Sepsis or hypotension | Shock | Early source control; vasopressors |
| Coagulopathy or thrombocytopenia | Procedure risk | Correct before ERCP if feasible |
| Pregnancy or cholangitis from stent/stricture | Complex source | Specialist input; tailored timing |
| Failure to improve within 24 h of antibiotics | Persistent obstruction | Escalate to urgent drainage |
Pharmacology
| Medication/Intervention | Mechanism | Onset | Role in Therapy | Limitations |
|---|---|---|---|---|
| Piperacillin-tazobactam or Ceftriaxone + Metronidazole | Antibiotics | Hours | Gram-negatives/anaerobes | Tailor to cultures |
| ERCP with sphincterotomy/stent | Source control | Hours | Definitive drainage | PTBD if ERCP not feasible |
| Fluids/vasopressors as needed | Supportive | Immediate | Treat sepsis | — |
Prognosis / Complications
- Outcome depends on timeliness of diagnosis and definitive therapy; monitor for complications.
Patient Education / Counseling
- Provide red‑flag education, adherence guidance, and explicit return precautions; arrange timely specialty follow‑up.
References
- Tokyo Guidelines for the management of acute cholangitis — Link
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