S1781 Large Balloon Papillary Dilation after Endoscopic Sphincterotomy: A One Year Nation Wide Multicentre Study

drome (OR=2.633, CI95% 1.451-4.778). The risk of GD being symptomatic was similar: 68.2% of cases (60/88) and 58.8% of controls (93/158) were cholecystectomized (p>0.05). Conclusions: We evaluated gallstone risk in patients with chronic HCV hepatitis and hospital controls. As compared to controls, the relative risk for GD in patients with chronic HCV hepatitis was higher in males, at younger age, in the presence of obesity and fatty liver, and was not related to dyslipidemia, diabetes mellitus or metabolic syndrome. Although we could not establish a temporal relationship between HCV infection and GD, our data suggest that chronic HCV infection represents an independent risk factor for gallstone formation.