Gastric bypass performed with different surgical platforms during different periods

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Abstract
Robotic gastric bypass (RGB) continues to increase. However, conflicting data remain on its impact on patient-reported outcomes. We utilized the Metabolic and Bariatric Surgery Accreditation and Quality Improvement Project (MBSAQIP) databases. Gastric bypass cases performed with laparoscopy (LGB) or robotic assistance (RGB) between 2015 and 2021 were analyzed. A 1:1 matched analysis compared outcomes between LGB and RGB performed at different time intervals (2015–2018 vs. 2091–2021). 286,531 RYGB cases (87% LGB, 13% RGB) were analyzed, yielding 25,594 matched LGB and RGB cases. Mortality was low (0.1%) and comparable between cohorts. Surgical site infection (SSI) (0.9% vs. 1.3%, p < 0.001) and bleeding (0.3% vs. 0.4%, p = 0.04) were lower with RGB; however, readmission (5.8% vs. 4.9%, p < 0.001), reoperation (2.2% vs. 1.85%, p = 0.005), and morbidity (7.6% vs. 6.8%, p < 0.001) were higher. Operative length (OL) was longer for RGB (p < 0.001). In the early cohort, SSI and bleeding (p = 0.002 and p = 0.039) were lower for RGB; however, operative duration and LOS (p < 0.001) were more extended. In the later cohort, SSI (p = 0.006) and bleeding (p = 0.046) remained lower with RGB, while morbidity was higher (p = 0.005). Mean OL narrowed but remained longer for RGB (p < 0.001), while LOS was comparable. Both RGB and LGB demonstrate safety profiles with low mortality and morbidity. With increased robotic utilization, RGB was associated with a persistently reduced incidence of SSI and bleeding but longer OL.

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