Robotic-assisted metabolic and bariatric surgery (MBS) is increasing performed. Clear benefits have yet to be established and outcomes studies vary in results. Very little is published on outcomes of robotic-assisted MBS in racial cohorts. Our study goal was to determine outcomes following robotic-assisted gastric bypass (RGB) among racial cohorts.


Using the 2015-2017 Metabolic and Bariatric Surgery Accreditation and Quality Improvement Program (MBSAQIP) database, we identified primary RGB cases using Current Procedure Terminology (CPT) codes 43644 and 43645. Selected cases were further stratified by race. 1:1 case-control matching was performed comparing racial cohorts. Cohorts were matched by patient demographics and preoperative comorbidities.


Between 2015 and 2017, RGB cases increased by 3%. Of the 8,719 RGB cases included in this analysis, 69%, 15% and 10% were performed in White, Black and Hispanic patients, respectively. After matched analysis (n = 2,666), outcomes were similar between Black and White patients, except for a longer operative duration (p = 0.0008), length of stay (LOS) (p = 0.001), and a higher rate pulmonary embolism (PE) (p = 0.04) in Black patients. Outcomes after matched analysis of Hispanic and White patients (n = 1794) were also similar, except a longer postoperative LOS in Hispanic patients (p = 0.007).


Robotic-assisted gastric bypass in increasingly performed and remain overall safe. While a higher proportion of cases are performed in White patients, outcomes between racial cohorts are mostly similar. The reasons for higher operative length, LOS and PE in Black MBS patients need further study.