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Midterm outcomes of one anastomosis gastric bypass for patients with BMI < 35 kg/m2 from a large single center

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Abstract

Background

One-anastomosis gastric bypass (OAGB) is gaining more attention in patients with severe obesity and recently is used for patients with body mass index (BMI) < 35 kg/m2. In this 5-year single center experience we aim to report our outcomes of using OAGB for patients with BMI < 35 kg/m2.

Methods

This is a retrospective analysis of prospectively collected data recorded in to our national obesity registry database. Variables including age, sex, weight, BMI, any associated disease, blood levels of metabolic markers, nutrients, and vitamins before and after surgery were extracted and analyzed.

Results

173 patients with mean age and BMI of 41 ± 10 years and 33 ± 1 kg/m2 underwent OAGB and at least one of the obesity-associated medical problems was found in 88 (50.5%) of them preoperatively. The mean duration of surgery and length of hospital stay were 60.7 ± 7.4 min and 1.3 ± 1.4 days. 78% and 70% of patients had available data at 24 and 60 months, respectively. The mean BMI was 23.9 ± 2.2 kg/m2 1 year after surgery and each year after that till 5 years was 24 ± 2, 24.4 ± 2.6, 25.1 ± 2.7, and 25.5 ± 2.7 kg/m2. Significant improvement in levels of fasting blood glucose, lipid profile, and liver enzymes were observed.

Conclusion

OAGB for BMI < 35 kg/m2 has significant effects in weight loss, helps remit diabetes and hypertension in the majority of cases, improves lipid profile, and has no increased burden of postoperative problems or deficiency in nutritional factors rather than what is known and predictable.

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Data availability

The datasets used and/or analyzed during the current study are available from the corresponding author through email address on reasonable request.

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Funding

This experimental study was not funded in any way.

Author information

Authors and Affiliations

  1. Department of Surgery, Division of Minimally Invasive and Bariatric Surgery, Rasool-e Akram (Hazrat-e Rasool) University Hospital, School of Medicine, Iran University of Medical Sciences, Mansouri St., Niyayesh St., Sattarkhan Ave., Tehran, Iran

    Shahab Shahabi Shahmiri, Mohammad Fathi, Abdolreza Pazouki & Mohammad Kermansaravi

  2. Center of Excellence of European Branch of International Federation for Surgery of Obesity, Rasool-e Akram (Hazrat-e Rasool) University Hospital, Tehran, Iran

    Shahab Shahabi Shahmiri, Mohammad Fathi, Abdolreza Pazouki & Mohammad Kermansaravi

  3. Minimally Invasive Surgery Research Center, Iran University of Medical Sciences, Tehran, Iran

    Shiva Safari, Erfan Sheikhbahaei, Mohammad Fathi, Delaram Moosavi & Seyed Nooredin Daryabari

  4. Minimally Invasive Surgery and Obesity Research Center, Alzahra University Hospital, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran

    Erfan Sheikhbahaei

  5. Department of Surgery, Division of Minimally Invasive and Bariatric Surgery, Firoozgar University-Affiliated Hospital, School of Medicine, Iran University of Medical Sciences, Tehran, Iran

    Seyed Nooredin Daryabari

  6. Whittington Hospital, London, UK

    Chetan D. Parmar

Authors
  1. Shahab Shahabi Shahmiri
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  9. Mohammad Kermansaravi
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Corresponding author

Correspondence to Mohammad Fathi.

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Disclosures

Shahab Shahabi Shahmiri, Shiva Safari, Erfan Sheikhbahaei, Mohammad Fathi, Delaram Moosavi, Seyed Nooredin Daryabari, Abdolreza Pazouki, Chetan D. Parmar, and Mohammad Kermansaravi: have no conflicts of interest or financial ties to disclose.

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Shahabi Shahmiri, S., Safari, S., Sheikhbahaei, E. et al. Midterm outcomes of one anastomosis gastric bypass for patients with BMI < 35 kg/m2 from a large single center. Surg Endosc 38, 3940–3947 (2024). https://doi.org/10.1007/s00464-024-10928-2

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