Biliary tract disorders including cholelithiasis, cholecystitis, and other diseases of the biliary tract, are one of the most prevalent medical issues in the digestive system, posing a myriad of challenges for health workers and patients. Gallbladder dysfunction is the most frequent cause of symptomatic and complicated biliary tract disorders. Although gallbladder dysfunction is a common condition in Middle East countries, data on the incidence of end-stage renal disease (ESRD) are limited. The occurrence of gallbladder dysfunction in patients fed with low-protein diets suggests that gallbladder stones formation is affected by dietary protein content. Also the lithogenic composition changes of bile, increased nucleation tendency, and impaired motility of gallbladder are important factors in ESRD patients. It has been reported that chronic kidney disease (CKD) patients on regular hemodialysis (HD) have increased bile cholesterol levels and an increased bile saturation index. In addition, the gallbladder is innervated by the autonomic nervous system, which malfunctions in uremia, and it has been shown that gallbladder stasis might cause increased stone formation. In some studies, the prevalence of gallbladder dysfunction has been shown to increase in patients undergoing hemodialysis (HD) treatment for ESRD. So, we focused in this study to try to find association of gallbladder dysfunction in pre-dialysis ESRD and HD patient in comparison to normal renal function individuals.
