Experience of using ursodeoxycholic acid to dissolve gallstones

Objective of the study. A 5-year prospective study was aimed to evaluate the efficacy of Ursosan treatment for dissolving gallstones.Material and methods. Patients who had single gallbladder stones were randomized to group A, in which 47 people completed the study (16 men and 31 women, median age is 67.6 years), and group B – 41 people 14 men and 27 women, median age is 68, 1 years). All patients of group A continuously received continuous treatment with ursodeoxycholic acid drug Ursosan at a dose of 10 mg /kg per day for 5 years. The patients of group D did not receive Ursosan; these individuals received periodic courses of spasmodic drugs. The patients passed clinical examination, laboratory tests, transabdominal ultrasound of the liver and biliary tract before the study, 2 times a year for 5 years and after the study.Results. After 5 years of treatment, stones were detected in 10.6% of patients in group A. In group B, the incidence of gallstones did not change after 5 years of treatment, that is, calculi were detected in all patients (p <0.001). At the end of the study, no muldoi tiple stones were observed in any of the patients of group A, while multiple stones were detected in 2/3 of group B patients after 5 years of treatment. A distinct decrease in pain syndrome frequency and improvement in contractile function of the gallbladder were recorded in patients of group A as compared to the patients of group B by the end of the observation period. The side effect profile did not differ in groups A and B. The study showed good tolerance of Ursosan for 5 years of continuous administration of the drug.Findings. The 5-year prospective study showed that Ursosan’s efficacy in dissolving gallstones accounted for 90%. Ursosan also prevented the formation of new calculi and reduced the frequency of pain, improved the gall-bladder contractile function and reduced the need for cholecystectomy by the end of the observation period