ArticleScientific reports2025
One anastomosis gastric bypass produces considerable weight reduction and resolution of medical complications with an acceptable rate of nutritional deficiencies.
Article in Scientific reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers, 1 of them a synthesis that pooled it.
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Who cites it
2 citing papers in PubMed, 1 synthesis or guideline pooled it.
- What is Weight Loss after Bariatric Surgery Expressed in Percentage Total Weight Loss (%TWL)? An Updated Systematic Review.Obesity surgery · 2026Pooled it
- Comparative Analysis of Postoperative Hair Loss and Micronutrient Deficiencies After One-Anastomosis Gastric Bypass Versus Sleeve Gastrectomy.Obesity surgery · 2026Article
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15 authors.
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No grant is acknowledged in the PubMed record.
Abstract
One anastomosis gastric bypass (OAGB) is a relatively novel bypass surgery variant, increasingly used as a primary surgical procedure. A total of 101 patients (mean age 44.7 ± 10.7 years, mean BMI 47.2 ± 6.6 kg/m2) underwent OAGB between 2014 and 2019 in a single institution. Results obtained 6,12 and 24 months postoperatively were compared with the pre-operative values using "Analyse-it software v5.40.2" and Graphpad Prism v9.3 for figures and tables. Data were tested for normality, described as Mean ± SD, compared using paired sample t-test with 5% p-value for significance and 95% confidence interval (CI). A significant body mass index (BMI), haemoglobin A1c (HbA1c) and low-density lipoprotein (LDL) reduction was recorded throughout follow-up period, with greatest improvement seen 2 years after surgery (47.6 ± 22 kg/m2 vs. 29.4 ± 6.4 kg/m2 ,6.7 ± 1.8% vs. 5.5 ± 0.2% and 3.2 ± 1 vs. 2.05 + 0.7 mmol/ l, p < 0.05). The number of glucose-lowering drugs decreased from 1.6 ± 0.9 to 0.3 ± 0.4 at 24-months, p < 0.001. The rates for zinc, ferritin, folate, B12 and vitamin D deficiency at 24-months were: 8.9%,4%, 5.9%, 0% and 3% respectively. OAGB can effectively downstage obesity disease and improve glucose and lipid homeostasis with a low risk for nutritional deficiencies. This study is one of few to report specifically on the frequency and type of nutritional deficiencies following OAGB surgery.
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