Surgery for Obesity and Related Diseases 11 (2015) 386–392 Original article Safety of one-step conversion of gastric band to sleeve: a comparative analysis of ACS-NSQIP data Ali Aminian, M.D., Saeed Shoar, M.D., Zhamak Khorgami, M.D., Toms Augustin, M.D., Philip R. Schauer, M.D., Stacy A. Brethauer, M.D. * Bariatric and Metabolic Institute, Cleveland Clinic, Cleveland, OH Received April 13, 2014; accepted August 30, 2014 Abstract Background: The conversion rate of laparoscopic adjustable gastric banding (LAGB) to laparo- scopic sleeve gastrectomy (LSG) has increased during recent years. The safety profile of one-step conversion of LAGB to LSG is not clear from the current literature. Methods: Using the database of the American College of Surgeons National Surgical Quality Improvement Program (ACS-NSQIP), morbidly obese patients undergoing primary LSG and con- version of LAGB to LSG in one-step between 2010 and 2012 were identified. Perioperative out- comes (including 30-day composite rate comprised of 18 postoperative adverse events) were compared between groups using a univariate cross-sectional analysis. Results: Data of 11,320 patients (10,997 primary LSG and 323 LAGB to LSG) were analyzed. The LAGB-to-LSG group had better preoperative health status, including significantly lower body mass index, American Society of Anesthesiologists scores, and prevalence of diabetes and hypertension. Operative time for the LAGB–to-LSG group (130.0  53.7 min) was significantly longer than primary LSG group (98.5  42.8 min, P o .001). The 30-day composite adverse event rate was 6.8% in the LAGB-to-LSG group and 5.4% in the primary LSG group (P ¼ .29). The rate of minor complications, including urinary tract infection and wound infection were significantly higher in the revisional surgery group. Thirty-day rates of other postoperative complications, reoperation, read- mission, mortality, and length of hospital stay were comparable between the 2 groups. Conclusions: This national data suggests that conversion of LAGB to LSG in a single stage has comparable safety to primary LSG. In this study, improved preoperative health status of patients in the revisional group may serve as an equalizer with regards to postoperative outcomes of conversion to LSG. (Surg Obes Relat Dis 2015;11:386–392.) r 2015 American Society for Metabolic and Bariatric Surgery. All rights reserved. Keywords: Gastric banding; Sleeve gastrectomy; Conversion; Revision; Reoperation; Complication; Weight loss; Bariatric surgery Laparoscopic adjustable gastric banding (LAGB) is a popular bariatric procedure commonly performed worldwide for morbid obesity [1–2]. Unfortunately, the number of cases requiring reoperative bariatric surgery due to failed LAGB has been on the rise [3]. The reason for failure can be related to band-related complications (such as pouch dilation, slippage, band erosion, and tube leakage), insufficient weight loss, or weight regain [1,4–5]. There are several alternative options for a failed LAGB, including revision to Roux-en-Y gastric bypass (RYGB), sleeve gastrectomy, or simply a redo gastric http://dx.doi.org/10.1016/j.soard.2014.08.018 1550-7289/ r 2015 American Society for Metabolic and Bariatric Surgery. All rights reserved. This study is being presented at the International Federation for the Surgery of Obesity and Metabolic Disorders (IFSO) 2014, World Con- gress, as one of the Top Papers. * Correspondence: Stacy A. Brethauer, M.D., Bariatric and Metabolic Institute, Cleveland Clinic, 9500 Euclid Avenue, M61, Cleveland, OH 44195. E-mail: brethas@ccf.org