Objective: to improve surgical intervention outcomes in patients with cholelithiasis. Material and method. Sixty four patients were investigated before the elective cholecystectomy. The level of bile acids in the blood serum was determined before and after laparoscopic cholecystectomy. In case of the elevated level of bile acids gastric and duodenal radiography was performed to determine the degree of duodenal dyskinesia. Dyskinesia assessment was carried out according to the classification of Ya. D. Vitebsky. Dyskinesia was verified by laboratory and X-ray studies in 9 patients who underwent laparoscopic cholecystectomy supplemented with mobilization of duodenojejunal junction without dissection of Treitz ligament (Clermont operation). Life quality evaluation was performed in 30 days after the surgical intervention using the unified GSRS questionnaire followed by statistical treatment. Results. Laparoscopic cholecystectomy performed simultaneously with Clermont procedure improved the life quality of patients with cholelithiasis and duodenal dyskinesia. This method is considered to be minimally invasive and rather effective in prevention of post-cholecystec-tomy complications. Conclusion. The suggested method proved to be effective, but insufficient number of the observed cases and the lack of long-term data demand the continuation of the study.