• Afnan Sameer Azhri, Asma Almuqati, Firas Azzeh, Nuha Alamro, Wedad Azhar, Alaa Qadhi, and Khloud Ghafouri.
• Department of Clinical Nutrition, King Abdullah Medical City, Makkah, Saudi Arabia.
• Medicine (Baltimore). 2023 Mar 17; 102 (11): e33111e33111.

AbstractThe significant outcome of bariatric surgery (BS) is weight loss, which may be affected by many factors, such as initial body weight before surgery, sex, and dietary intake. Moreover, rapid weight loss is associated with an increased incidence of postsurgical cholelithiasis. To investigate the observed weight loss outcomes during the first year after BS, we investigated the factors that may influence weight loss and to detect the efficacy of prophylactic ursodeoxycholic acid against gallstone formation. This was a retrospective cohort study of all patients with morbid obesity who underwent BS in the hospital and completed a 1-year follow up. Patients with a previous BS or a history of cholecystectomy before BS were excluded. Data were extracted from the medical records at multiple postoperative intervals. There was significant weight loss in terms of percentage of excess weight loss and reduction in body mass index postoperative. A significant correlation was found between the percent of excess weight loss and age, initial body mass index, and initial weight, but there was no significant correlation with sex or type of surgery. The incidence of postoperative cholecystectomy is almost negligible. A significant association was found between age and weight loss after BS. ursodeoxycholic acid is an effective prophylaxis to decrease the incidence of cholecystectomy after BS.Copyright © 2023 the Author(s). Published by Wolters Kluwer Health, Inc.

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