The Effect of Sizing Device Use During Laparoscopic Sleeve Gastrectomy on Rates of Postoperative Dehydration and Other 30-day Complications: An Analysis of the ACS-MBSAQIP Database

Document Type

Journal Article

Publication Date



Surgical laparoscopy, endoscopy & percutaneous techniques




BACKGROUND: During laparoscopic sleeve gastrectomy (LSG), many surgeons use an intraoperative sizing device. However, the choice of intraoperative sizing device varies and the optimal choice or combination of sizing devices, such as a bougie or esophagogastroduodenoscopy (EGD), is not known. The purpose of this study was to determine if there is an association between the use of a sizing device or a combination of sizing devices on rates of dehydration, bleeding, and staple line leak following LSG. MATERIALS AND METHODS: Patients between the ages of 18 to 80 who underwent elective LSG were identified using the American College of Surgeons Metabolic and Bariatric Surgery Accreditation and Quality Improvement Program (ACS-MBSAQIP) database from 2015 to 2019. Postoperative outcomes, including rates of dehydration, bleeding, and staple line leak, were compared across 4 groups: those that utilized bougie and EGD (both), those that utilized only bougie (bougie only), those that utilized only EGD (EGD only), and those that did not utilize either sizing device (neither). RESULTS: In all, 533,151 cases met the inclusion criteria. On univariate analysis, the bougie-only group experienced the highest rates of dehydration events. On multivariate analysis, the use of both sizing devices was associated with significantly lower odds of events related to dehydration versus bougie only (aOR 0.869, P=0.0002), and bougie only was associated with significantly higher odds of events related to dehydration versus EGD only (aOR 1.773, P=0.0006).The neither-sizing device group did not show any statistically significant differences in any of the comparisons. CONCLUSIONS: Bougie use alone was associated with more dehydration-related complications, while EGD use demonstrated a protective effect. Not using a sizing device was associated with equivalent outcomes to all combinations of sizing devices. These findings highlight the need for the standardization of sizing devices during LSG and suggest that foregoing sizing devices may be a management option without early adverse sequelae.