What are the indications, preparation, prophylactic measures, sedation, contraindications, and post‑procedure management for ERCP (Endoscopic Retrograde Cholangiopancreatography)?

ERCP: Clinical Management Guidelines

Indications

ERCP should be reserved strictly as a therapeutic procedure for patients with proven bile duct stones, with diagnosis confirmed through low-risk modalities (ultrasound, EUS, or MRCP) to avoid unnecessary post-ERCP pancreatitis risk. 1 The procedure is not for diagnostic purposes given its complication profile.

Sedation Approach

Monitored anaesthesia care (MAC) with propofol is the preferred sedation technique for most ERCP procedures, reserving general anaesthesia with endotracheal intubation only for specific high-risk scenarios. 2

When to Use MAC (Propofol Sedation):

• Standard ERCP procedures in most patients
• ASA physical status and patient age are NOT determining factors 2
• Associated with high success rates and patient satisfaction 1
• Requires anaesthetist administration in UK practice 1

When to Use General Anaesthesia with Intubation:

• Patients at increased risk of pulmonary aspiration 2
• Prolonged, highly complex procedures (e.g., cholangioscopy-assisted lithotripsy, intrahepatic ductal stones) 1
• Morbid obesity 1
• Pre-existing airway or ventilation problems 1

Clinical pitfall: Conscious sedation alone (benzodiazepine/opiate) results in 14% poor tolerance rates and procedure failure, necessitating repeat procedures and clinical delays 1

Prophylactic Measures Against Post-ERCP Pancreatitis

Administer rectal NSAIDs (100 mg indomethacin or diclofenac) immediately before ERCP in all patients without contraindications. 1, 3 This represents the most important prophylactic advance, supported by high-quality RCTs.

Additional PEP Prevention Strategies:

Pancreatic duct stenting should be considered when:

• Repeated pancreatic duct cannulation occurs (>1 pancreatic wire passage) 1
• Patient-specific risk factors present: young age, female sex, suspected Sphincter of Oddi dysfunction 1
• Use 5F pancreatic stent 1
• Critical warning: Failed stent placement attempts dramatically increase PEP risk; requires proper training 1

Post-stent management:

• Reassess patients to confirm spontaneous migration (hours to days) 1
• Plain abdominal X-ray to verify migration 1
• Endoscopic removal if spontaneous migration fails 1

Avoid pancreatic duct cannulation or contrast-filling during ERCP for bile duct stones wherever possible. 1

Pre-Procedure Preparation

Laboratory Testing:

Obtain FBC and INR/PT prior to biliary sphincterotomy. 1 Coagulation tests are NOT routinely required for non-anticoagulated, non-jaundiced patients 3

Coagulopathy Management:

• Correct coagulopathy and severe thrombocytopenia before sphincterotomy 1
• If correction impossible, use lower-bleeding-risk procedures (endoscopic stenting) initially 1
• Follow local guidelines for deranged clotting management 1

Anticoagulation/Antiplatelet Management:

• Follow BSG and ESGE guidelines for warfarin, antiplatelet agents, and DOACs (rivaroxaban, apixaban, dabigatran) 1
• Management varies by medication, indication, and whether high-risk procedure planned 1

Antibiotic Prophylaxis

Routine antibiotic prophylaxis is NOT recommended before ERCP. 1, 3

Specific Indications for Antibiotic Prophylaxis:

• Anticipated incomplete biliary drainage 3
• Severely immunocompromised patients 3
• Cholangioscopy procedures 3
• Sclerosing cholangitis 1
• Communicating pancreatic cysts 1
• Hilar strictures 1
• Liver transplantation 1
• Failed attempt to drain opacified bile duct 1

Contraindications

Relative Contraindications Requiring Risk-Benefit Assessment:

• Uncorrectable coagulopathy (consider stenting instead of sphincterotomy) 1
• Severe thrombocytopenia 1
• Inability to tolerate sedation/anaesthesia
• Anticipated incomplete drainage without ability to provide prophylactic antibiotics

Procedural Contraindications:

• Absence of proven bile duct pathology requiring therapeutic intervention 1

Post-Procedure Management

Post-ERCP Pancreatitis:

• Do NOT perform salvage pancreatic stenting in patients who develop post-ERCP pancreatitis 3
• Standard supportive care for acute pancreatitis

Post-Sphincterotomy Bleeding:

• Standard hemostatic modalities first-line
• Consider temporary placement of fully covered self-expandable metal biliary stent for bleeding refractory to standard measures 3

Post-ERCP Cholangitis:

• Evaluate with abdominal ultrasound or CT scan 3
• If no improvement with conservative therapy, consider repeat ERCP 3
• Collect bile sample for microbiological examination during repeat ERCP 3

Pancreatic Stent Follow-up:

• Reassess for spontaneous migration 1
• Plain abdominal X-ray confirmation 1
• Endoscopic removal if retained 1

Quality Indicators

High cannulation rate and low PEP rate are essential ERCP quality indicators that should be monitored 4