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. 2023 Mar;33(3):720-724.
doi: 10.1007/s11695-023-06452-2. Epub 2023 Jan 18.

One Anastomosis Gastric Bypass Versus Single Anastomosis Duodenoileostomy with Sleeve: Comparative Analysis of 30-Day Outcomes Using the MBSAQIP

Benjamin Clapp  1 , Kamal Abi Mosleh  2 , John Corbett  1 , Karl Hage  2 , Rachel L Moore  3 , Helmuth Billy  4 , Jaime Ponce  5 , Omar M Ghanem  6
Affiliations

One Anastomosis Gastric Bypass Versus Single Anastomosis Duodenoileostomy with Sleeve: Comparative Analysis of 30-Day Outcomes Using the MBSAQIP

Benjamin Clapp et al. Obes Surg. 2023 Mar.

Abstract

Introduction/purpose: One anastomosis gastric bypass (OAGB) and single anastomosis duodenoileostomy with sleeve (SADI-S) are two highly effective bariatric procedures that have been recently endorsed by the American Society of Metabolic and Bariatric Surgery (ASMBS). We compared the outcomes and safety profiles of SADI-S and OAGB using the Metabolic and Bariatric Surgery Accreditation and Quality Improvement Program (MBSAQIP) database.

Materials and methods: Retrospective analysis on patients who underwent SADI-S or OAGB obtained from the MBSAQIP database 2020-2021. Patients who underwent concurrent procedures (besides EGD) or had missing data were removed. Variables included age, sex, body mass index, American Society of Anesthesiologists (ASA) class, and pertinent medical comorbidities. Data were analyzed for 30-day postoperative morbidity, mortality, reoperation, reintervention, and readmissions. p values were calculated using Student's t-test or Fisher analysis.

Results: A total of 694 and 1068 patients respectively underwent SADI-S or OAGB. Statistically significant comorbidities included age (42.2 ± 10.8 vs. 43.7 ± 12.2), BMI (50.6 ± 9.1 vs. 45.3 ± 7.1), ASA 2 (66 (9.5%) vs. 165 (15.4%)), ASA 4 [69 (9.9%) vs. 20 (1.9%)], and immunosuppressive therapy [24 (3.5%) vs. 17 (1.6%)]. Clavien-Dindo-based analysis highlighted that SADI-S had higher grade 2 (p = 0.005) and grade 4b (p = 0.001) complications. Patients who underwent SADI-S were twice as likely to be readmitted within 30 days (3.7% vs. 1.9%; p = 0.021).

Conclusion: SADI-S had higher readmission rates and higher Clavien-Dindo grade 2 and 4b complications. To note, SADI-S patients had higher BMIs. Further studies are needed to determine the long-term complications and efficacy of both operations.

Keywords: Bariatric surgery; Metabolic surgery; One anastomosis gastric bypass (OAGB); Single anastomosis duodenoileostomy (SADI-S); Weight loss.

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