Incidence of gallstones after laparoscopic bariatric surgeries / Ahmed Samir Fouad Tammam ; Supervised Hisham Ahmed Abou Eisha , Mohamed Diaa Sarhan , Ahmed Mohammed Abdelsalam

Thesis (M.Sc.) - Cairo University - Faculty of Medicine - Department of General Surgery

Background Cholelithiasis is a common complication after bariatric surgery due to rapid weight loss. Pure restrictive procedures such as sleeve gastrectomy and gastric banding theoretically should result in less gallstone formation because the food continues to follow the normal gastrointestinal transit, maintaining the enteric-endocrine reflex intact. This study aimed to identify the incidence of gallstone formation after bariatric surgery and to compare the rates of gallstones between different procedures of bariatric surgery.Method A prospective and retrospective case series study of two hundred and fifty patients who underwent laparoscopic bariatric surgeries in the last 2 years in bariatric surgery department of Kasr Al-Ainy hospital. The patients with previous cholecystectomy, known gallstones with or without concomitant cholecystectomy were excluded from the analysis. All those patients followed by abdominal ultrasound for a period of 6 months to 2 years. Risk factors, including age, gender, types of operation, and EBWL% were analyzed for their association with postoperative gallstones formation.Results The incidence of post-bariatric surgery development of cholelithiasis was 28.4 % (71 patients from 250), 59.1 % of them were symptomatic (42 out of 71 patients). Individually, it was 23.4 % in LSG group, 81.25 % in LRYGB group and 36 % in MGB patients-

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