Treatment of Acute Cholangitis

Initial Management

The American College of Gastroenterology recommends beginning antibiotics empirically as early as possible in any patient with suspected cholangitis - within 1 hour if septic shock is present, otherwise within 4 hours 1, 3
Patients with severe disease or significant comorbidities should be admitted to the intensive care unit 1

The Infectious Diseases Society of America recommends aminopenicillin/beta-lactamase inhibitor combinations for mild-moderate cases of acute cholangitis 4
The Society of Critical Care Medicine recommends piperacillin/tazobactam for severe cases of acute cholangitis 6, 4
The American College of Surgeons recommends carbapenems for unstable patients or if risk factors for ESBL-producing organisms are present 6, 5

The American Society for Gastrointestinal Endoscopy recommends ERCP as the treatment of choice for biliary decompression in moderate/severe acute cholangitis 2, 8
The Society of Interventional Radiology recommends percutaneous transhepatic biliary drainage (PTBD) for cases where ERCP fails or is contraindicated 2

The Tokyo Guidelines recommend ERCP for biliary decompression with short-course antibiotic therapy for Class A or B patients (stable) 7, 8
The Surviving Sepsis Campaign recommends immediate ERCP for biliary decompression and broader-spectrum antibiotics for Class C patients (unstable/septic) 7, 8, 6, 5

The Infectious Diseases Society of America recommends obtaining bile samples for microbial testing during drainage procedures to guide targeted antibiotic therapy 1
The American College of Gastroenterology recommends considering local resistance patterns and adjusting antibiotic selection based on culture results 4
The Society of Critical Care Medicine recommends being aware that patients with biliary stents or previous biliary surgery are at higher risk for resistant organisms and may require broader empiric coverage 4