Robotic versus laparoscopic one anastomosis gastric bypass (OAGB): a propensity score-matched comparative study of perioperative outcomes in 200 patients - Report - 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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Comparative Analysis of Perioperative Outcomes in Robotic and Laparoscopic OAGB

Overview

This study compares perioperative outcomes between robotic one anastomosis gastric bypass (r-OAGB) and laparoscopic one anastomosis gastric bypass (l-OAGB) in a matched cohort of 200 patients. Findings suggest that both techniques are effective, but differences in operative time and postoperative complications warrant further investigation.

Background

Metabolic and bariatric surgery (MBS) is the gold standard for treating morbid obesity, particularly in patients with a BMI over 35 kg/m2. One anastomosis gastric bypass (OAGB) has gained popularity due to its effectiveness in weight loss. The comparison between robotic and laparoscopic techniques is crucial for optimizing surgical outcomes and informing clinical practice.

Data Highlights

{'r-OAGB': 'actual operative time', 'l-OAGB': 'actual operative time', 'Postoperative Complications': 'actual complication rates'}

Key Findings

  • Both r-OAGB and l-OAGB are effective for weight loss in morbidly obese patients.
  • Operative time for r-OAGB was significantly longer compared to l-OAGB.
  • Postoperative complication rates were comparable between the two techniques.
  • Patient demographics and comorbidities were similar in both groups after propensity score matching.
  • Pain control outcomes showed no significant differences between r-OAGB and l-OAGB.

Clinical Implications

Surgeons should consider the operative time and complication profiles when choosing between r-OAGB and l-OAGB. Both techniques are viable options, but the choice may depend on the specific clinical scenario and patient preferences.

Conclusion

This study provides valuable insights into the comparative outcomes of r-OAGB and l-OAGB, highlighting the need for further research to optimize surgical techniques in bariatric surgery.

Related Resources & Content

  1. Frontiers in Surgery, 2026 -- Robotic hand-sewn vs. laparoscopic linear-stapled Roux-en-Y gastric bypass: a propensity score-matched analysis of primary and conversion cases
  2. Obesity Surgery, 2018 -- Are Outcomes Improved with Robotic Roux-en-Y Gastric Bypass Compared to Traditional Laparoscopic Techniques?
  3. Obesity Surgery, 2024 -- Clinical Outcomes of Robotic-Assisted Versus Laparoscopic Bariatric Surgery Remain Comparable
  4. Comparative Analysis of Robotic Surgery Versus Laparoscopy for Rectal Cancer in Obese Patients: Short-Term Outcome Benefits Observed in a Propensity Score Matched Study
  5. ASMBS Guidelines on Metabolic and Bariatric Surgery
  6. Long-Term Outcomes of One Anastomosis Gastric Bypass: A Systematic Review and Meta-Analysis
  7. Robotic-Assisted and Laparoscopic Bariatric Surgeries Still Have Clinically Comparable Outcomes - PMC

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