• Surg Obes Relat Dis · Jun 2016

    Comparative Study Observational Study

    Comparative effectiveness of 3 bariatric surgery procedures: Roux-en-Y gastric bypass, laparoscopic adjustable gastric band, and sleeve gastrectomy.

    • Jenny H Lee, Quynh-Nhu Nguyen, and Quang A Le.
    • Western University of Health Sciences, Pomona, California.
    • Surg Obes Relat Dis. 2016 Jun 1; 12 (5): 997-1002.

    BackgroundBariatric surgery is associated with improved co-morbidities, quality of life, and survival in severely obese patients. Common bariatric surgery procedures include Roux-en-Y gastric bypass (RYGB), laparoscopic adjustable gastric band (LAGB), and sleeve gastrectomy (SG). Currently, literature studying comparative effectiveness on different bariatric surgery procedures in veterans is limited.ObjectivesTo compare effectiveness of 3 bariatric surgery procedures performed in veterans.SettingVeterans Affairs Loma Linda Healthcare Systems (VALLHS), Loma Linda, California, United States.MethodsThis study was a single-institution, retrospective cohort study. Primary outcome was weight reduction, expressed as kilograms lost, body mass index (BMI) reduction, percentage weight loss (%WL), and percentage excess weight loss (%EWL) after 12 months of bariatric surgery. Secondary outcomes were reduction in number of medications and laboratory markers for obesity-related chronic conditions. Inverse-probability weighting propensity score method was used to balance baseline characteristics among the procedures.ResultsA total of 162 patients were included in the study. At 12 months, the kilograms lost, BMI reduction, %WL, and %EWL were 40.7±14.5 kg, 13.4±4.1 kg/m(2), 31.5±8.5%, and 41.4±11.6% for RYGB; 24.4±22.1 kg, 7.9±7.3 kg/m(2), 20.2±21.5%, and 26.7±27.6% for SG; and 15.3±15.7 kg, 5.0±5.0 kg/m(2), 12.0±11.7%, and 16.1±15.9% for LAGB, respectively (RYGB versus SG, RYGB versus LAGB, and SG versus LAGB, all P<.01). The reduction in number of medications, total cholesterol, and low-density lipoprotein (LDL) also showed significant improvement with RYGB.ConclusionFor the short term, RYGB appears to achieve better weight reduction and management of obesity-associated co-morbid conditions compared with the SG and LAGB procedures in veteran patients. SG could be the next alternative over LAGB for the bariatric surgery procedure in patients who are not candidates for RYGB.Copyright © 2016 American Society for Bariatric Surgery. All rights reserved.

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