Comparative study between laparoscopic sleeve gastrectomy and laparoscopic greater curvature gastric plication regarding reduction in gastric volume using computed tomography gastric volumetry

Background: The most effective therapy for obesity is bariatric surgery. In addition to weight loss, it also significantlyreduces mortality and improves comorbidities associated with obesity within a significant proportion of patients.Laparoscopic sleeve gastrectomy (LSG) and laparoscopic greater curvature gastric plication (LGCP) are both restrictivebariatric surgeries. LSG is considered the most performed worldwide. We aimed to compare the residual gastric volume(RGV) after LSG and LGCP and correlate this volume with weight loss.Patients and Methods: This was a comparative cohort study performed on 40 obese cases assigned into two groups. GroupA underwent LGCP and group B underwent LSG. All cases in both groups underwent multislice computed tomographygastric volumetry after 3 months to assess RGV. The excess weight loss percentage (EWL%) was subsequently correlatedwith the RGV 6 months’ postsurgery.Results: In this study, group A had a significantly higher average of RGV in comparison to group B (357.9±79.9 vs.132.4±44.4, P<0.001). Group A had higher EWL% in comparison to group B (59.1±17.7 vs. 52.5±9.1, P=0.076).Conclusion: RGV might be able to predict the EWL% following LGCP and LSG. The less the RGV, the greater theEWL%. LGCP is an effective operation for weight loss despite relatively high RGV.