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02.07.2020 | Original Contributions | Ausgabe 11/2020

Obesity Surgery 11/2020

Bariatric Surgery in Prior Solid Organ Transplantation Patients: Is Race a Predictor of Adverse Outcomes?

Obesity Surgery > Ausgabe 11/2020
Michael A. Edwards, Alexander M. Fagenson, Michael Mazzei, Huaqing Zhao
Wichtige Hinweise

Electronic supplementary material

The online version of this article (https://​doi.​org/​10.​1007/​s11695-020-04813-9) contains supplementary material, which is available to authorized users.

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Metabolic and bariatric surgery (MBS) is increasingly performed in patients with previous solid organ transplantation (PSOT). In addition, controversy remains about whether racial disparity in outcomes following MBS exists. Therefore, the aim of this analysis was to determine if race independently predicts outcomes in MBS patients with PSOT.

Materials and Methods

Patients with PSOT undergoing sleeve gastrectomy (SG) and Roux-en-Y gastric bypass (RYGB) were identified in the 2017 Metabolic and Bariatric Surgery Accreditation Quality and Improvement Project (MBSAQIP) database. Patients were stratified by race (Black and White). Propensity score matching was utilized to adjust for multiple demographic variables. Multivariable logistic regression analyses were performed for overall and bariatric-related morbidity.


Of 335 MBS patients with PSOT, 250 (75%) were white and 85 (25%) were black patents. Procedure-type and surgical approach (p > 0.1) were similarly distributed. Black patients were more likely (p < 0.05) to have hypertension dialysis-dependent chronic kidney disease, and be on chronic steroids). Mortality and morbidity were similar. Black patients had significantly (p < 0.05) higher rates of renal failure, pulmonary complications, and emergency department visits in unmatched analysis. After propensity score matching, 82 patients in each cohort were identified and were similar at baseline (p > 0.5). In the matched analysis, black patients had higher overall (17% vs. 10%, p = 0.12) and bariatric-related morbidity (14% vs. 7.2%, p = 0.05). In addition, black patients had significantly (p < 0.05) higher rates of postoperative pneumonias, progressive renal insufficiency, and emergency department visits. On multivariable regression analysis, black race did not independently predict overall or bariatric-related morbidity.


MBS in racial cohorts with PSOT is safe, with very low rates of overall morbidity and mortality. Black race trended toward increased postoperative morbidity. Larger cohort studies are needed to validate our findings.

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