High complication rate of bile duct stents in patients with chronic alcoholic pancreatitis due to noncompliance

Background and Study Aims: Biliary obstruction in chronic pancreatitis is frequently treated by endoscopic insertion of a plastic stent into the common bile duct, a therapy regarded as having a low complication rate. The aim of this study is to analyze the frequency and severity of complications caused by biliary stents in patients with chronic alcoholic pancreatitis. Patients and Methods: We retrospectively analyzed all our patients with chronic pancreatitis (n = 14) who were provided with a plastic stent for biliary stenosis between June 1993 and December 1997, Stent exchanges were followed until December 1998, Results: Stent insertion was performed without early complications and was successful in each patient, Only two patients were admitted after 3-4 months at the scheduled dates for stent exchange, both without complications, In one of these patients, the bile duct stenosis was reopened after two stent exchanges over a total period of 8 months, Most of our patients (n=12) did not come at the arranged dates for stent exchange, They were repeatedly admitted (mean 2.9 times/patient, range 1-5) as emergency cases with severe complications of biliary obstruction, such as cholangitis or biliary sepsis, Reopening of the bile duct stenosis was not achieved in these patients. Conclusions: We associate the high rate of complications with the noncompliance of our patients, who were all alcoholics. The high incidence of late complications in noncompliant patients is a limitation of biliary stenting, and appears to be potentially harmful.