Papillary Function of Patients with Juxtapapillary Duodenal Diverticulum Consideration of Pathogenesis of Common Bile Duct Stones

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Abstract
The papillary function of cholelithiasis patients with and without juxtapapillary duodenal diverticulum (JPDD) was examined manometrically. The papillary function was evaluated on the basis of dP(O.S), the pressure difference between the resting pressure and the perfusion pressure. Patients with a dP(0.5) less than 5 cm H2O were considered to have papillary dysfunction. In cholecystolithiasis patients the incidence of papillary dysfunction was significantly greater in those with JPDD than in those without JPDD (p < 0.05). However, there was no significant difference in dP(0.5) between those with and without JDPP because of the small number of patients involved. Also, in patients with choledocholithiasis there was no difference in the papillary function between those with and without JPDD. All who had JPDD showed papillary dysfunction. From our results, JPDD is suspected to have an important role in causing papillary dysfunction or loss of papillary muscle tone. This dysfunction may be closely connected with the formation of common bile duct stones.