Endoscopic biliary drainage in chronic pancreatitis

Area of Science:

• Gastroenterology
• Hepatology
• Interventional Endoscopy

Background:

• Chronic pancreatitis frequently causes biliary stenosis, leading to significant cholestasis, jaundice, and cholangitis.
• Endoscopic retrograde cholangiopancreatography (ERCP) is a key diagnostic and therapeutic tool for biliary tract issues.
• Biliary obstruction in chronic pancreatitis poses a management challenge, often requiring invasive procedures.

Purpose of the Study:

• To evaluate the efficacy and long-term outcomes of endoscopic biliary drainage using endoprosthesis placement in patients with chronic pancreatitis and biliary stenosis.
• To assess the resolution rates of jaundice, cholestasis, and cholangitis following stent insertion.
• To determine the incidence of complications such as stent migration and blockage, and the need for re-intervention or surgery.

Main Methods:

• A cohort of 25 patients with chronic pancreatitis and biliary stenosis presenting with significant cholestasis between April 1982 and March 1988 underwent ERCP with endoprosthesis placement.
• Clinical outcomes including resolution of jaundice, cholestasis, and cholangitis were monitored.
• Long-term follow-up was conducted to assess stent-related complications, recurrence of symptoms, and the need for further treatment, including surgery.

Main Results:

• Endoscopic biliary drainage successfully resolved jaundice, cholestasis, and cholangitis in all 25 patients initially.
• During a mean follow-up of 14 months, 10 patients experienced stent migration and 8 had stent blockage.
• Relapsing symptoms occurred in 12 patients, necessitating stent replacement or surgical intervention in most cases; only 3 patients remained asymptomatic without a stent long-term.

Conclusions:

• Endoscopic biliary drainage provides effective short-term relief from jaundice and cholangitis in chronic pancreatitis patients with biliary stenosis.
• The long-term success of endoscopic management is limited by a high rate of stent-related complications and a low rate of spontaneous stricture resolution after stent removal.
• Surgical intervention or repeated endoscopic procedures are often required for definitive management in this patient group.