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Complications Following the Mini/One Anastomosis Gastric Bypass (MGB/OAGB): a Multi-institutional Survey on 2678 Patients with a Mid-term (5 Years) Follow-up

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Abstract

Background

In recent years, several articles have reported considerable results with the Mini/One Anastomosis Gastric Bypass (MGB/OAGB) in terms of both weight loss and resolution of comorbidities. Despite those positive reports, some controversies still limit the widespread acceptance of this procedure. Therefore, a multicenter retrospective study, with the aim to investigate complications following this procedure, has been designed.

Patients and Methods

To report the complications rate following the MGB/OAGB and their management, and to assess the role of this approach in determining eventual complications related especially to the loop reconstruction, in the early and late postoperative periods, the clinical records of 2678 patients who underwent MGB/OAGB between 2006 and 2015 have been studied.

Results

Intraoperative and early complications rates were 0.5 and 3.1%, respectively. Follow-up at 5 years was 62.6%. Late complications rate was 10.1%. A statistical correlation was found for perioperative bleeding both with operative time (p < 0.001) or a learning curve of less than 50 cases (p < 0.001). A statistical correlation was found for postoperative duodenal-gastro-esophageal reflux (DGER) with a preexisting gastro-esophageal-reflux disease (GERD) or with a gastric pouch shorter than 9 cm, (p < 0.001 and p = 0.001), respectively. An excessive weight loss correlated with a biliopancreatic limb longer than 250 cm (p < 0.001).

Conclusions

Our results confirm MGB/OAGB to be a reliable bariatric procedure. According to other large and long-term published series, MGB/OAGB seems to compare very favorably, in terms of complication rate, with two mainstream procedures as standard Roux-en-Y gastric bypass (RYGBP) and laparoscopic sleeve gastrectomy (LSG).

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Acknowledgements

The authors would like to acknowledge Prof. Maurizio Taglialatela for his precious help in drafting this manuscript.

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Authors and Affiliations

  1. Advanced Biomedical Sciences Department, “Federico II” University, AOU “Federico II” - Via S. Pansini 5 Building, 12 80131, Naples, Italy

    Mario Musella, Marco Milone & Paolo Bianco

  2. Clinica “S. Maria Maddalena”, Rovigo, Italy

    Antonio Susa & Antonio Vilardi

  3. AORN “A. Cardarelli”, Naples, Italy

    Emilio Manno & Ivana Damiano

  4. “S. Bortolo” General Hospital, Vicenza, Italy

    Maurizio De Luca & Gianni Segato

  5. Clinica “Castelli”, Bergamo, Italy

    Francesco Greco & Laura Pedretti

  6. Department of Surgery, Catholic Sacred Heart University, Rome, Italy

    Marco Raffaelli & Piero Giustacchini

  7. Clinica “S. Maria della Pietà”, Casoria, Italy

    Stefano Cristiano & Domenico Fico

  8. AORN “G. Garibaldi”, Catania, Italy

    Gastone Veroux & Luigi Piazza

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  1. Mario Musella
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Corresponding author

Correspondence to Mario Musella.

Ethics declarations

Although an “ethical approval” statement does not apply to a retrospective study, it has to be remarked that all MGB/OAGB procedures performed by authors were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.

Conflict of Interest

The authors declare that they have no conflicts of interest.

Informed Consent

An informed consent to surgery was obtained from all patients who underwent an MGB/OAGB procedure performed by anyone of the authors of this study during these years.

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Musella, M., Susa, A., Manno, E. et al. Complications Following the Mini/One Anastomosis Gastric Bypass (MGB/OAGB): a Multi-institutional Survey on 2678 Patients with a Mid-term (5 Years) Follow-up. OBES SURG 27, 2956–2967 (2017). https://doi.org/10.1007/s11695-017-2726-2

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