Recurrent Pancreatitis as a Late Complication of Endoscopic Sphincterotomy for Common Bile Duct Stones: Diagnosis and Therapy

Although long-term complications of endoscopic sphincterotomy (ES) have often been reported, the possible effects of the procedure on the pancreatic duct orifice remain virtually unknown. Three women patients are described who developed attacks of recurrent pancreatitis at 2, 7, and 27 months after ES for bile duct stones. The attacks were apparently caused by a partial stenosis of the pancreatic orifice, arising from post-procedure fibrosis and scarring. The patients were evaluated and treated endoscopically. All three patients benefited from endoscopic therapy; two became symptom-free and one improved. Symptoms recurred in the three patients, after 26, 41, and 23 months. In one patient, re-stenosis was documented and repeat sphincterotomy resulted in complete relief of symptoms during the ensuing 5 months. In the remaining two patients, the symptoms were mild and no further intervention was needed. Concerning complications, one patient suffered a moderately severe pancreatitis without sequelae. Recurrent pancreatitis may emerge as a late complication after ES for common bile duct stones. It is probably causally related to stenosis of the pancreatic orifice brought about by fibrosis and scarring, which may exceptionally develop after the procedure. Endoscopic therapy should probably be considered in the first instance, but the optimal treatment for this condition remains to be determined.

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