ArticleObesity surgery2026
Revisions of One Anastomosis Gastric Bypass with Biliopancreatic Limb of 250 cm Multicentre Retrospective Study with a Mean Follow-up of 11 years.
Article in Obesity surgery, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Authors and funding
5 authors.
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Abstract
backgroundOne-anastomosis gastric bypass (OAGB) is a widely performed bariatric procedure. The length of the biliopancreatic limb (BPL) is a key determinant of weight loss and metabolic effect, but excessively long limbs may predispose to malabsorptive complications. Long-term outcome data for fixed long BPLs remain limited.
objectiveTo evaluate long-term severe complications requiring revisional surgery following OAGB with a fixed biliopancreatic limb length of 250 cm.
methodsThis multicentre retrospective cohort study included all consecutive patients who underwent primary OAGB with a 250-cm BPL between 2010 and 2020. Data were extracted from hospital electronic and paper records. Patients were invited for a structured clinical and biochemical assessment. Severe complications were predefined and reviewed by a multidisciplinary team. Outcomes of interest were severe complications requiring revisional surgery. Follow-up ranged from 7 to 15 years.
resultsOf 892 OAGB procedures performed during the study period, 97 patients (10.9%) underwent OAGB with a 250-cm BPL. Complete follow-up data were available for 78 patients (80.4%). Mean age was 47 years, mean preoperative BMI was 46.6 kg/m
conclusionOAGB with a fixed biliopancreatic limb length of 250 cm was associated with a high rate of severe long-term complications requiring revisional surgery. These findings support cautious tailoring of BPL length and avoidance of routinely long limbs in OAGB.
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