• Christopher R Daigle, Stacy A Brethauer, Chao Tu, Anthony T Petrick, John M Morton, Philip R Schauer, and Ali Aminian.
• Bariatric and Metabolic Institute, Department of General Surgery, Cleveland Clinic, Cleveland, Ohio; The Bariatric Center, Department of General Surgery, Cleveland Clinic Akron General, Akron, Ohio.
• Surg Obes Relat Dis. 2018 May 1; 14 (5): 652-657.

BackgroundNational quality programs have been implemented to decrease the burden of adverse events on key outcomes in bariatric surgery. However, it is not well understood which complications have the most impact on patient health.ObjectiveTo quantify the impact of specific bariatric surgery complications on key clinical outcomes.SettingThe Metabolic and Bariatric Surgery Accreditation and Quality Improvement Program (MBSAQIP) database.MethodsData from patients who underwent primary bariatric procedures were retrieved from the MBSAQIP 2015 participant use file. The impact of 8 specific complications (bleeding, venous thromboembolism [VTE], leak, wound infection, pneumonia, urinary tract infection, myocardial infarction, and stroke) on 5 main 30-day outcomes (end-organ dysfunction, reoperation, intensive care unit admission, readmission, and mortality) was estimated using risk-adjusted population attributable fractions. The population attributable fraction is a calculated measure taking into account the prevalence and severity of each complication. The population attributable fractions represents the percentage reduction in a given outcome that would occur if that complication were eliminated.ResultsIn total, 135,413 patients undergoing sleeve gastrectomy (67%), Roux-en-Y gastric bypass (29%), adjustable gastric banding (3%), and duodenal switch (1%) were included. The most common complications were bleeding (.7%), wound infection (.5%), urinary tract infection (.3%), VTE (.3%), and leak (.2%). Bleeding and leak were the largest contributors to 3 of 5 examined outcomes. VTE had the greatest effect on readmission and mortality.ConclusionThis study quantifies the impact of specific complications on key surgical outcomes after bariatric surgery. Bleeding and leak were the complications with the largest overall effect on end-organ dysfunction, reoperation, and intensive care unit admission after bariatric surgery. Furthermore, our findings suggest that an initiative targeting reduction of post-bariatric surgery VTE has the greatest potential to reduce mortality and readmission rates.Copyright © 2018 American Society for Bariatric Surgery. Published by Elsevier Inc. All rights reserved.

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