ArticleSurgery today2025
Anemia rates after one-anastomosis gastric bypass versus sleeve gastrectomy: a retrospective cohort study.
Article in Surgery today, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Elevated preoperative red cell distribution width and incident anemia after metabolic and bariatric surgery: a cohort study.Frontiers in nutrition · 2026Article
- Long-Term Outcomes of Laparoscopic Sleeve Gastrectomy Versus One-Anastomosis Gastric Bypass: A Retrospective Comparative Study with ≥ 7 Years Follow-Up.Obesity surgery · 2025Article
- One-anastomosis gastric bypassWorld journal of gastrointestinal surgery · 2025Article
- Description of the Characteristics of Sleeve Gastrectomy Patients and the Effect of Bowel Movement on Quality of Life After Sleeve Gastrectomy.Obesity surgery · 2025Article
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Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeTo compare postoperative anemia rates after one-anastomosis gastric bypass (OAGB) with those after sleeve gastrectomy (SG) in a large nationwide, population-based cohort study.
methodsWe sourced data from the Israeli Bariatric Surgery Registry. The study included a cohort of adults who underwent bariatric surgery (BS) between 2013 and 2017. Hemoglobin (Hb) was measured preoperatively and then 1 and 2 years post-BS. Anemia rates were compared between the patients who underwent OAGB and those who underwent SG, using multivariable analyses.
resultsThe study comprised 1,052 patients who underwent OAGB and 5,885 patients who underwent SG. Among them, 24.1% and 23.6% were men, respectively, and the preoperative mean body mass index values were 41.7 ± 5.0 and 42.1 ± 5.1 kg/m2, respectively. The 1-year and 2-year postoperative anemia rates were significantly higher after OAGB than after SG, when adjusted for age, pre-surgery BMI, sex and other covariates (1 year: 37.5% vs. 20.2%; adj-OR = 2.43; 95% CI 2.08-2.86; 2 years: 45.1% vs. 28.5%; adj-OR = 1.92; 95% CI 1.59-2.32).
conclusionsPatients who underwent OAGB had significantly higher anemia rates 1 year and 2 years postoperatively than those who underwent SG. Consequently, vigilant surveillance and intervention strategies post-OAGB should be considered to mitigate the incidence of anemia and its associated complications.
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