Balamurugan G, Sinclair Piriyah, Sesby-Banjoh O, Vinod Mayuri, Graham Yitka, Mahawar Kamal
South Tyneside and Sunderland NHS Foundation Trust, Sunderland, UK.
Department of General Surgery, Worcestershire Acute NHS Trust, Worcester, UK.
Curr Obes Rep. 2025 Jan 25;14(1):14. doi: 10.1007/s13679-025-00608-0.
One Anastomosis Gastric Bypass (OAGB) is a modification of Mason's loop bypass procedure, which has become a well-established procedure in the field of Bariatric and Metabolic surgery (BMS). However, the optimal length of Biliopancreatic Limb (BPL) in OAGB remains an ongoing debate.
This review aims to analyse the current trends and evidence regarding different BPL lengths in OAGB and their impact on outcomes.
A comprehensive literature search using search terms, 'One Anastomosis Gastric Bypass', 'Mini-Gastric Bypass', 'Biliopancreatic Limb', and 'Small bowel limb' was conducted. The articles were extracted and critically appraised for various outcomes including weight loss, comorbidities resolution, nutritional deficiencies, complications and quality of life.
There appears to be a direct relationship between length of the BPL and the incidence of malnutrition. Longer BPL lengths (> 200 cm) are associated with a higher risk of malnutrition. Shorter BPL lengths (150-200 cm), particularly 150 cm, have shown promising outcomes.
Shorter BPL lengths offer potential advantages by reducing nutritional risks associated with OAGB. Further research with long-term follow-up is needed to investigate the efficacy of even shorter BPL lengths (< 150 cm).
单吻合口胃旁路术（OAGB）是对梅森袢式旁路手术的一种改良，已成为肥胖与代谢外科（BMS）领域一种成熟的手术。然而，OAGB中胆胰支（BPL）的最佳长度仍存在争议。
本综述旨在分析OAGB中不同BPL长度的当前趋势和证据及其对手术结果的影响。
使用搜索词“单吻合口胃旁路术”“迷你胃旁路术”“胆胰支”和“小肠支”进行全面的文献检索。提取文章并对包括体重减轻、合并症缓解、营养缺乏、并发症和生活质量在内的各种结果进行严格评估。
BPL长度与营养不良发生率之间似乎存在直接关系。较长的BPL长度（>200 cm）与较高的营养不良风险相关。较短的BPL长度（150 - 200 cm），尤其是150 cm，已显示出有前景的结果。
较短的BPL长度通过降低与OAGB相关的营养风险具有潜在优势。需要进行长期随访的进一步研究来调查更短的BPL长度（<150 cm）的疗效。
