ERCP for Common Bile Duct Stones
Non-Surgical Removal of Bile Duct Stones with Endoscopy
Overview
ERCP — Endoscopic Retrograde Cholangiopancreatography — is a specialised endoscopic procedure that combines the use of a flexible camera (endoscope) with X-ray imaging to diagnose and treat problems in the bile ducts and pancreatic duct. It is the gold-standard treatment for common bile duct (CBD) stones — gallstones that have migrated from the gallbladder into the bile duct — and is performed without any surgical incision.
What Is ERCP for Common Bile Duct Stones?
The common bile duct (CBD) is the tube that carries bile from the liver and gallbladder to the small intestine. When gallstones migrate from the gallbladder into the CBD, they can obstruct bile flow, causing jaundice (yellow skin and eyes), severe pain, fever (cholangitis), or pancreatitis — all potentially life-threatening conditions.
ERCP addresses these problems by accessing the bile duct from inside the body — through the mouth, down the oesophagus, through the stomach, and into the duodenum (first part of the small intestine), where the bile duct opens. The endoscopist can then cut the opening of the bile duct (sphincterotomy), insert a balloon or basket to capture and remove the stones, and place a stent to relieve obstruction.
ERCP has largely replaced open surgical bile duct exploration for CBD stones. It is performed under conscious sedation or general anaesthesia, requires no external incisions, and most patients are discharged within 24–48 hours.
How the Procedure Works
- 1The patient is sedated (conscious sedation or general anaesthesia)
- 2A flexible duodenoscope (side-viewing endoscope) is passed through the mouth into the duodenum
- 3The papilla of Vater (opening of the bile duct) is identified
- 4A thin catheter is inserted into the bile duct opening
- 5Contrast dye is injected and X-rays are taken to map the bile duct (cholangiogram)
- 6Sphincterotomy: a small cut is made in the papilla to widen the opening
- 7Stones are captured using a balloon catheter or Dormia basket and extracted
- 8A stent may be placed to ensure bile drainage if stones cannot be fully cleared
- 9The endoscope is withdrawn — no incisions are made
- 10Patient is monitored for 4–6 hours before discharge or overnight stay
Who Needs This Procedure?
- Common bile duct stones (choledocholithiasis) causing jaundice
- Gallstone pancreatitis (stones blocking the pancreatic duct)
- Acute cholangitis (infected bile duct — a medical emergency)
- Biliary obstruction causing elevated liver enzymes
- Pre-operative CBD clearance before laparoscopic cholecystectomy
- Post-operative bile leak after cholecystectomy
- Biliary strictures (narrowing of the bile duct)
- Diagnosis of bile duct tumours or pancreatic cancer
Key Benefits
No Surgical Incision
ERCP is performed entirely through the mouth using an endoscope. There are no cuts, stitches, or scars on the abdomen.
Rapid Relief
Jaundice, pain, and fever from bile duct obstruction typically resolve within 24–48 hours of successful ERCP and stone clearance.
Short Hospital Stay
Most patients are discharged within 24–48 hours. Emergency ERCP for cholangitis may require a longer stay until infection resolves.
Diagnostic and Therapeutic
ERCP both diagnoses the problem (via cholangiogram) and treats it (stone removal, stent placement) in a single procedure.
Complements Surgery
ERCP clears the bile duct of stones, after which laparoscopic cholecystectomy can safely remove the gallbladder — a two-stage approach that is safer than open bile duct exploration.
High Success Rate
ERCP successfully clears CBD stones in over 90% of cases in experienced hands. Very large stones may require additional sessions or lithotripsy.
How to Prepare
- Blood tests: CBC, LFT, coagulation profile, amylase/lipase
- Ultrasound or MRCP to confirm CBD stones and assess anatomy
- Fasting: nothing to eat or drink for 6–8 hours before the procedure
- Stop blood thinners (aspirin, clopidogrel, warfarin) as advised — timing depends on urgency
- Inform the team of any allergies, especially to iodine or contrast dye
- Arrange for a responsible adult to accompany you home (sedation impairs driving)
- Remove dentures and jewellery before the procedure
Recovery Timeline
Rest and observation. Clear fluids once fully awake. Mild throat discomfort and bloating are normal. Avoid driving for 24 hours.
Light diet — soft, low-fat foods. Avoid alcohol. Monitor for fever, worsening pain, or jaundice. Most patients feel significantly better as bile flows freely.
Resume normal diet gradually. Avoid very fatty foods. Follow-up blood tests to confirm liver function normalisation. Plan for cholecystectomy if gallbladder is still present.
If gallstones are still present in the gallbladder, laparoscopic cholecystectomy is typically planned within 2–6 weeks of successful ERCP to prevent recurrence.
Diet After Surgery
- Day 1: Clear fluids only (water, clear soups, coconut water)
- Day 2–3: Soft, low-fat foods (rice, dal, curd, boiled vegetables)
- Week 1–2: Gradual return to normal diet, avoiding very fatty or spicy foods
- Avoid alcohol for at least 2 weeks after ERCP
- Stay well hydrated to support liver function recovery
Potential Risks & Complications
All surgical procedures carry some risk. Dr. Patil will discuss these with you in detail during your consultation. The following risks are rare but important to be aware of:
- Post-ERCP pancreatitis (2–5%) — the most common complication, usually mild and self-limiting
- Bleeding from sphincterotomy site (1–2%) — usually stops spontaneously
- Cholangitis (infection of the bile duct) (<1%)
- Perforation of the duodenum or bile duct (rare, <0.5%)
- Contrast dye reaction (rare with modern non-ionic contrast agents)
- Incomplete stone clearance requiring repeat ERCP
- Stent migration or occlusion if a stent is placed
When to Seek Immediate Medical Help
Contact Dr. Patil or go to the nearest emergency department if you experience any of the following after your procedure:
- Fever above 38°C within 24–48 hours of ERCP
- Worsening abdominal pain (especially in the upper abdomen or back)
- Return of jaundice after initial improvement
- Dark urine or pale stools persisting beyond 48 hours
- Vomiting blood or black tarry stools (bleeding from sphincterotomy)
- Inability to eat or drink due to nausea
Cost & Insurance Coverage
Estimated Cost
₹35,000 – ₹75,000 (varies by complexity, stent placement, and hospital)
Insurance
ERCP is covered under all major health insurance plans when performed for a medically indicated condition (CBD stones, cholangitis, pancreatitis). Emergency ERCP for cholangitis is always covered. Our team assists with pre-authorisation and cashless claims.
Why Choose Dr. Adarsh M Patil?
- Dr. Patil has performed ERCP in collaboration with leading gastroenterologists at SPARSH and Columbia Asia
- Coordinated care: ERCP and subsequent cholecystectomy managed by the same surgical team
- Access to advanced ERCP equipment including cholangioscopy and lithotripsy for complex stones
- Emergency ERCP available for acute cholangitis — a life-threatening condition
- Comprehensive pre- and post-procedure care with 24/7 helpline
Frequently Asked Questions
Is ERCP painful?
ERCP is performed under sedation or general anaesthesia, so you will not feel pain during the procedure. Afterwards, you may experience mild throat discomfort, bloating, and mild abdominal discomfort for 24–48 hours. Significant pain after ERCP should be reported immediately as it may indicate post-ERCP pancreatitis.
How long does ERCP take?
A straightforward ERCP for CBD stone removal typically takes 30–60 minutes. Complex cases involving multiple large stones, biliary strictures, or stent placement may take 60–90 minutes. You will be in the hospital for a total of 6–8 hours on the day of the procedure.
Do I still need gallbladder surgery after ERCP?
ERCP removes stones from the bile duct but does not remove the gallbladder. If you have gallstones in the gallbladder, laparoscopic cholecystectomy is strongly recommended within 2–6 weeks of ERCP to prevent recurrence of CBD stones and future episodes of pancreatitis or cholangitis.
What is post-ERCP pancreatitis?
Post-ERCP pancreatitis (PEP) is the most common complication of ERCP, occurring in 2–5% of cases. It presents as abdominal pain and elevated amylase within 24 hours of the procedure. Most cases are mild and resolve with IV fluids and fasting over 2–3 days. Severe PEP requiring ICU care is rare (<0.5%).
Can ERCP be done in patients with a previous Roux-en-Y gastric bypass?
Standard ERCP is not possible after Roux-en-Y gastric bypass because the duodenoscope cannot reach the papilla through the altered anatomy. Alternative approaches include laparoscopy-assisted ERCP, enteroscopy-assisted ERCP, or surgical bile duct exploration. Dr. Patil will discuss the most appropriate approach for your situation.
MS (General Surgery) · Fellowship in Advanced Laparoscopy & Bariatric Surgery (Belgium) · Consultant Surgeon, Apollo Clinic Indiranagar
Last reviewed: April 2026 · View credentials
This content has been reviewed for medical accuracy by a qualified consultant surgeon with over 12 years of experience in advanced laparoscopic and robotic surgery. It is intended for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional for diagnosis and treatment.