Abstract

Roux-en-Y Gastric Bypass (RYGB) has been associated with increased weight loss but more complications when compared with sleeve gastrectomy (SG). However, a direct comparison between RYGB and SG has never been performed in patients with a history of solid organ transplantation. The aim of this study was to determine the association between procedure type and surgical outcomes. Patients with a history of solid organ transplantation were identified in the Metabolic and Bariatric Surgery Accreditation Quality Improvement Project Participant Use File database from 2017 to 2018. Procedure type (SG versus RYGB) was used to stratify patients. Propensity score matching and multivariable logistic regressions were used, and outcomes were compared. Of 678 cases identified, 80% (n=542) underwent an SG and 20% (n=136) had an RYGB. Patients differed significantly (P<0.05) by multiple demographic variables. Multivariable regression revealed RYGB to be associated with higher overall morbidity (odds ratio [OR] 1.98; P=0.012), morbidity related to surgery (OR 2.47; P=0.002), unplanned readmissions (OR 2.48; P=0.002), and readmissions related to surgery (OR 2.32; P=0.016). After propensity score matching, RYGB, compared with SG, was also associated with higher morbidity (14% versus 7.4%; P=0.077) and readmissions (13% versus 6.6%; P=0.099) related to surgery, although this did not reach statistical significance. In patients with a history of solid organ transplant, RYGB was associated with increased morbidity and readmissions compared with SG.

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