A 13-year nationwide analysis of outcomes of non-variceal upper gastrointestinal bleeding in post-bariatric surgery patients.

Background: Non-variceal upper gastrointestinal bleeding (NVUGIB) is a common cause of hospitalization and associated morbidity and mortality. Bariatric surgery is a widely performed category of gastrointestinal (GI) surgery that attempts to induce weight loss by reconstructing the upper GI tract. Bleeding is a common complication of bariatric surgery; however, limited research exists on outcomes for these patients when admitted for NVUGIB compared to those without a history of bariatric surgery. Our study aims to evaluate the outcomes of post-bariatric surgery patients (PBSPs) admitted with NVUGIB over a 13-year span. Methods: The National Inpatient Sample (NIS) from 2008 to 2020 was used to identify patients over 18 years old admitted for NVUGIB using the International Classification of Disease (ICD), 9 Results: A total of 2,231,826 patients admitted for NVUGIB were included in this study. Of these, 28,167 had a history of bariatric surgery. Overall, bariatric surgery patients were younger, less complicated (CCI: 2.71 Conclusions: Our study found that patients with NVUGIB and a history of bariatric surgery had substantially decreased odds of mortality, AMI, shock, and AKI compared to patients without a history of bariatric surgery. This suggests that patients with a history of bariatric surgery experienced more minor bleeds than other patients. Further studies are therefore warranted to understand the postoperative risk of bariatric surgery.