Abstract
The current study investigated the incidence, risk factors, and outcomes of acute pancreatitis after percutaneous transhepatic biliary stenting for malignant biliary obstruction. From March 2016 to May 2020, a total of 425 patients who underwent percutaneous transhepatic biliary stent- ing for malignant biliary obstruction were included in this 2-center study. After the procedure, we analyzed the incidence, risk factors, and outcomes of acute pancreatitis. On follow-up, 79 (18.6%) patients showed increased serum amylase levels, of whom 41 (9.6%) developed pancreatitis. On binary logistic regression analysis, stent across the duodenal papilla (odds ratio = 8.54; 95% CI = 3.54-20.62; P < .001) and visualization of the pancreatic duct (odds ratio = 9.87; 95% CI = 4.67-20.86; P < .001) were significant risk factors of pancreatitis after the procedure. Using conservative therapy, all patients were successfully managed at a mean of 3.5 days (range 1-6 days), and no severe pancreatitis happened. Acute pancreatitis is a relatively common complication after percutaneous transhepatic biliary stenting. Stent across the duodenal papilla and visualization of the pancreatic duct are independent risk factors.
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