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Uraemic pancreatopathy is frequently observed in patients with chronic renal failure. The aim of the study was to assess some parameters of exocrine pancreatic function in uraemic patients maintained on intermittent haemodialyses. Elevated serum amylase activity was found in these patients. The most significant finding was the low bicarbonate output in duodenal content after secretin-cerulein stimuli, comparable with that obtained in patients with chronic pancreatitis. It indicates pancreatic exocrine defect in uraemic patients. A fall in protein output and lower amylase activity in duodenal content was also observed in haemodialyzed patients after stimulation. Low basal acid output (BAO) and enhanced maximal (MAO) and peak (PAO) acid outputs were found in uraemic patients after pentagastrin stimulation. Gastritis and duodenitis were frequently diagnosed in endoscopic and histopathological examinations in these patients. In patients with chronic renal failure even without clinical signs of pancreatic, laboratory findings of exocrine pancreatic abnormalities are reported. It may be the cause of uraemic pancreatopathy.

Structural changes in both biliary tract and pancreas have been assessed with endoscopic retrograde cholangiopancreatography in 100 diabetic patients divided into subgroups depending on the type of diabetes mellitus, i.e. type I, type II and III-pancreatic. Control group included 100 randomly selected patients without diabetes mellitus in whom endoscopic retrograde cholangiopancreatography has been performed for various indications. Structural changes in the biliary tract and pancreas have been more frequent in diabetic patients than in the control group (47 and 75% vs 32 and 30%, respectively). Cholelithiasis has been noted in 27.8% of patients with type II diabetes mellitus and in 11.3% of patients with type I diabetes mellitus; obesity has been found in 57 and 12% of patients, respectively. Other biliary tract disorders, mainly in the form of segmental stenosis or dilatation of the common bile duct, have been more frequent in patients with type II diabetes mellitus. Pancreatic disorders, assessed with the aid of Cambridge classification, have been noted in all patients with pancreatic diabetes and in 80.7% of patients with diabetes mellitus type I. Incidence of so-called doubtful and mild disorders has been more frequent (22.2 and 24.1%, respectively) in patients with diabetes mellitus type II whereas "moderate" and "severe" disorders have been significantly less frequent (7.4 and 1.9% of patients). The results indicate, that endoscopic retrograde cholangiopancreatography is useful in the assessment of bile ducts structure and pancreatic exocrine activity in diabetic patients in whom disorders are more frequent.