Important risk factors for gallstones after laparoscopic gastrectomy: A retrospective study
Abstract Background: The frequency of gallstones is higher in patients who have undergone gastrectomy than in the general population. While there have been some studies of gallstone formation after open gastrectomy, there are few reports of gallstones after LG. This study aimed to evaluate the incidence of gallstones after laparoscopic gastrectomy. Methods: We retrospectively reviewed the records of 184 patients who underwent laparoscopic gastrectomy between January 2011 and May 2016 at Saiseikai Utsunomiya Hospital. After gastrectomy, abdominal ultrasonography was generally performed every 6 months until 5 years later. Patients who underwent simultaneous cholecystectomy or with an observation period of < 24 months were excluded from the study. Ninety patients were ultimately analyzed. Laparoscopic cholecystectomy was performed whenever biliary complications occurred.Results: Gallstones were detected after laparoscopic gastrectomy in 27 of the 90 (30%) cases. Multivariate analysis identified Roux-en-Y reconstruction and male sex as significant risk factors for gallstones after gastrectomy. Symptomatic gallstones after laparoscopic cholecystectomy were found in 6 cases (6/27, 22%), and all patients underwent laparoscopic cholecystectomy.Conclusion: Roux-en-Y reconstruction was identified as a significant risk factor for gallstones after laparoscopic gastrectomy.