ERCP complications: pancreatitis, perforation, bleeding and cholangitis

What ERCP does and why recovery needs close watching

Endoscopic retrograde cholangiopancreatography passes an endoscope through the mouth into the duodenum so the team can inject contrast into the bile and pancreatic ducts, cut the sphincter, remove stones or place stents. It is usually therapeutic rather than purely diagnostic, which is why the complication profile differs from a routine upper endoscopy.

Before the procedure the nurse confirms fasting, consent, allergy history including prior contrast dye reactions, anticoagulant and antiplatelet plans, and transport home if same-day discharge is planned. Afterward, recovery starts with airway and sedation monitoring, then shifts to serial abdominal assessment, because pancreatitis and perforation may not declare themselves in the first few minutes. Check the oxygen saturation, respiratory rate and level of consciousness against the sedation recovery criteria before the patient eats, drinks or walks.

Recognise post-ERCP pancreatitis early

Post-ERCP pancreatitis is the most frequent significant adverse event. Reported risk is higher in women, in patients with suspected sphincter of Oddi dysfunction, with a normal bilirubin or non-dilated ducts, and after a previous episode. Prevention measures such as rectal anti-inflammatory medicine or a temporary pancreatic duct stent are decided by the endoscopist, not by the nurse.

Mild bloating and a sore throat are expected after air insufflation and the endoscope. What should prompt escalation is epigastric pain that is new, persistent or increasing, especially when it radiates to the back or comes with vomiting, a rising heart rate or a falling blood pressure. Report it, keep the patient nil by mouth until reviewed, and anticipate laboratory tests and fluid orders.

Perforation, bleeding and cholangitis: how each presents

Perforation is rare but serious. Suspect it with severe abdominal pain, a rigid abdomen, fever, tachycardia, or neck or chest discomfort with crackling under the skin. Retroperitoneal perforation can produce vague back or flank pain at first, so an unusual pain description deserves the same urgent report. Imaging and surgical review are prescriber decisions; the nurse keeps the patient nil by mouth and monitors closely.

Bleeding after sphincterotomy may be delayed and appear as black or bloody stools, vomiting blood, dizziness or a falling haemoglobin. Cholangitis presents with the classic combination of abdominal pain, jaundice and fever with chills; confusion and hypotension added to that picture suggest severe infection. Any of these patterns after ERCP calls for prompt escalation through the local sepsis or bleeding pathway.

Apply it to a hypothetical recovery-room question

Consider a hypothetical patient two hours after ERCP with sphincterotomy who reports steadily worsening epigastric pain radiating to the back, with heart rate climbing since arrival. Options include offering clear fluids to settle the stomach, giving a warm pack and reassessing in an hour, explaining that bloating is expected, or notifying the provider and keeping the patient nil by mouth.

Notifying the provider is the best answer because escalating pain with a rising heart rate fits pancreatitis or perforation rather than simple gas. Oral fluids could worsen either problem, and a heating pad delays assessment. Reassurance about bloating is tempting because some distension is normal, but the trend and the vital sign change separate an expected finding from a complication.

Discharge teaching and documentation after ERCP

Teach that bloating and gas usually settle within about a day and a sore throat may last a few days. The patient should seek help for severe abdominal pain or swelling, black or bloody stools, vomiting, fever or yellowing skin. Follow the prescriber's instructions on pain relief, since some anti-inflammatory and antiplatelet medicines may be restricted after sphincterotomy. Make sure the patient has a responsible adult to travel home with, because sedation impairs judgement for the rest of the day.

Document the procedure performed, sedation recovery, baseline and serial pain scores, abdominal findings, vital sign trends and when diet was resumed. Recording a clear baseline matters, because a later complaint can only be judged as new or worsening if the earlier assessment was written down in comparable terms.

Sources and further reading

MedlinePlus: ERCP. Preparation and fasting, dye allergy, risks including pancreatitis, perforation and bleeding, expected bloating and sore throat, and warning signs after discharge.

United European Gastroenterology Journal: Adverse events in ERCP, focus on post-ERCP pancreatitis. Pancreatitis as the most common adverse event, patient risk factors and prevention with rectal NSAIDs and pancreatic stents.

MSD Manual Professional: Choledocholithiasis and cholangitis. ERCP with sphincterotomy for duct stones, short-term complications of bleeding, pancreatitis and infection, and Charcot triad and Reynolds pentad.