Robotic versus laparoscopic one anastomosis gastric bypass (OAGB): a propensity score-matched comparative study of perioperative outcomes in 200 patients - Summary - MDSpire

Robotic versus laparoscopic one anastomosis gastric bypass (OAGB): a propensity score-matched comparative study of perioperative outcomes in 200 patients

  • By

  • Mario Musella

  • Antonio Franzese

  • Vincenzo Schiavone

  • Pasquale Avella

  • Alessandra D’Ambrosio

  • Lucrezia Borrelli

  • Carolina Bartolini

  • Gerardo D’Amato

  • May 26, 2026

  • 0 min

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Objective:

To compare the efficacy and safety of robotic one anastomosis gastric bypass (r-OAGB) and laparoscopic one anastomosis gastric bypass (l-OAGB) in patients undergoing metabolic and bariatric surgery, emphasizing the comparative nature of the study.

Key Findings:
  • Both r-OAGB and l-OAGB were performed on patients with BMI ≥ 35 kg/m2 or ≥ 30 kg/m2 with comorbidities.
  • Operative times and postoperative outcomes were systematically compared between the two surgical approaches, with specific statistics to be included.
  • Postoperative complications were classified according to the Clavien-Dindo classification.
Interpretation:

The study aims to provide insights into the technical differences and outcomes associated with r-OAGB and l-OAGB, contributing to evolving practices in metabolic and bariatric surgery.

Limitations:
  • The study is limited by its retrospective design.
  • Only patients from a single institution were included, which may affect generalizability and introduce bias.
  • The learning curve for robotic surgery was considered by excluding initial cases.
Conclusion:

The study provides a comprehensive analysis of r-OAGB and l-OAGB, highlighting the need for further research to clarify their respective benefits and risks.

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