Outcomes of One-Anastomosis Gastric Bypass Conversion to Roux-en-Y Gastric Bypass for Severe Obesity: A Systematic Review and Meta-analysis

Overview

Journal Obes Surg

Date 2024 Jan 20

PMID 38244169

Authors

Narek Sargsyan

Bibek Das

Henry Robb

Christopher Namgoong

Iihan Ali

Hutan Ashrafian

Samer Humadi

Anuja Mitra

Matyas Fehervari

Affiliations

Soon will be listed here.

Abstract

One-anastomosis gastric bypass (OAGB) is an effective procedure to treat severe obesity. However, conversion to Roux-en-Y gastric bypass (RYGB) is increasing. We therefore conducted a systematic review to determine the safety and efficacy associated with OAGB-RYGB conversion. A systematic search was conducted by three independent reviewers using Medline, Embase, and the Cochrane library following PRISMA guidelines. Six studies including 134 patients were selected who were undergoing OAGB-RYGB conversion. The most common indications were reflux (47.8%), malnutrition (31.3%), and inadequate weight loss (8.2%). Study outcomes demonstrated 100% resolution of bile reflux. Overall, there was medium-term weight gain of 0.61 BMI. OAGB to RYGB conversion leads to resolution of reflux symptoms. However, it is associated with weight regain, albeit this may be acceptable to patients to treat biliary reflux.

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References

Ruiz-Tovar J, Carbajo M, Jimenez J, Castro M, Gonzalez G, Ortiz-de-Solorzano J . Long-term follow-up after sleeve gastrectomy versus Roux-en-Y gastric bypass versus one-anastomosis gastric bypass: a prospective randomized comparative study of weight loss and remission of comorbidities. Surg Endosc. 2018; 33(2):401-410. DOI: 10.1007/s00464-018-6307-9. View

Zub-Pokrowiecka A, Rembiasz K, Konturek S, Budzynski A, Konturek P, Budzynski P . Ghrelin in diseases of the gastric mucosa associated with Helicobacter pylori infection. Med Sci Monit. 2010; 16(10):CR493-500. View

Genser L, Soprani A, Tabbara M, Siksik J, Cady J, Carandina S . Laparoscopic reversal of mini-gastric bypass to original anatomy for severe postoperative malnutrition. Langenbecks Arch Surg. 2017; 402(8):1263-1270. DOI: 10.1007/s00423-017-1615-4. View

Chevallier J, Arman G, Guenzi M, Rau C, Bruzzi M, Beaupel N . One thousand single anastomosis (omega loop) gastric bypasses to treat morbid obesity in a 7-year period: outcomes show few complications and good efficacy. Obes Surg. 2015; 25(6):951-8. DOI: 10.1007/s11695-014-1552-z. View

Parmar C, Mahawar K . One Anastomosis (Mini) Gastric Bypass Is Now an Established Bariatric Procedure: a Systematic Review of 12,807 Patients. Obes Surg. 2018; 28(9):2956-2967. DOI: 10.1007/s11695-018-3382-x. View

Felsenreich D, Langer F, Bichler C, Kristo I, Jedamzik J, Eilenberg M . Surgical therapy of weight regain after Roux-en-Y gastric bypass. Surg Obes Relat Dis. 2019; 15(10):1719-1728. DOI: 10.1016/j.soard.2019.07.002. View

Saarinen T, Rasanen J, Salo J, Loimaala A, Pitkonen M, Leivonen M . Bile Reflux Scintigraphy After Mini-Gastric Bypass. Obes Surg. 2017; 27(8):2083-2089. DOI: 10.1007/s11695-017-2608-7. View

Sista F, Clementi M, Rivkine E, Soprani A, Fiasca F, Cappelli S . Gastric Bypass after multiple restrictive procedures: Roux-en-Y or One Anastomosis? A retrospective multicentric study. Eur Rev Med Pharmacol Sci. 2022; 26(6):2075-2084. DOI: 10.26355/eurrev_202203_28355. View

Lee W, Lee Y, Ser K, Chen S, Chen J, Su Y . Revisional surgery for laparoscopic minigastric bypass. Surg Obes Relat Dis. 2010; 7(4):486-91. DOI: 10.1016/j.soard.2010.10.012. View

10.

Poghosyan T, Caille C, Moszkowicz D, Hanachi M, Carette C, Bouillot J . Roux-en-Y gastric bypass for the treatment of severe complications after omega-loop gastric bypass. Surg Obes Relat Dis. 2017; 13(6):988-994. DOI: 10.1016/j.soard.2016.12.003. View

11.

Tolone S, Cristiano S, Savarino E, Lucido F, Fico D, Docimo L . Effects of omega-loop bypass on esophagogastric junction function. Surg Obes Relat Dis. 2015; 12(1):62-9. DOI: 10.1016/j.soard.2015.03.011. View

12.

Jedamzik J, Bichler C, Felsenreich D, Gensthaler L, Eichelter J, Nixdorf L . Conversion from one-anastomosis gastric bypass to Roux-en-Y gastric bypass: when and why-a single-center experience of all consecutive OAGB procedures. Surg Obes Relat Dis. 2021; 18(2):225-232. DOI: 10.1016/j.soard.2021.10.019. View

13.

Page M, McKenzie J, Bossuyt P, Boutron I, Hoffmann T, Mulrow C . The PRISMA 2020 statement: an updated guideline for reporting systematic reviews. BMJ. 2021; 372:n71. PMC: 8005924. DOI: 10.1136/bmj.n71. View

14.

Tarhini A, Rives-Lange C, Jannot A, Baratte C, Beaupel N, Guillet V . One-Anastomosis Gastric Bypass Revision for Gastroesophageal Reflux Disease: Long Versus Short Biliopancreatic Limb Roux-en-Y Gastric Bypass. Obes Surg. 2022; 32(4):970-978. DOI: 10.1007/s11695-022-05892-6. View

15.

Almuhanna M, Soong T, Lee W, Chen J, Wu C, Lee Y . Twenty years' experience of laparoscopic 1-anastomosis gastric bypass: surgical risk and long-term results. Surg Obes Relat Dis. 2021; 17(5):968-975. DOI: 10.1016/j.soard.2021.01.010. View

16.

Landreneau J, Barajas-Gamboa J, Strong A, Corcelles R, Kroh M . Conversion of one-anastomosis gastric bypass to Roux-en-Y gastric bypass: short-term results from a tertiary referral center. Surg Obes Relat Dis. 2019; 15(11):1896-1902. DOI: 10.1016/j.soard.2019.09.059. View

17.

Magouliotis D, Tasiopoulou V, Tzovaras G . One anastomosis gastric bypass versus Roux-en-Y gastric bypass for morbid obesity: a meta-analysis. Clin Obes. 2018; 8(3):159-169. DOI: 10.1111/cob.12246. View

18.

Kamocka A, Chidambaram S, Erridge S, Vithlani G, Miras A, Purkayastha S . Length of biliopancreatic limb in Roux-en-Y gastric bypass and its impact on post-operative outcomes in metabolic and obesity surgery-systematic review and meta-analysis. Int J Obes (Lond). 2022; 46(11):1983-1991. PMC: 9584808. DOI: 10.1038/s41366-022-01186-0. View

19.

Wabitsch M . Gastrointestinal Endocrinology in Bariatric Surgery. Endocr Dev. 2017; 32:124-138. DOI: 10.1159/000475735. View

20.

De Luca M, Piatto G, Merola G, Himpens J, Chevallier J, Carbajo M . IFSO Update Position Statement on One Anastomosis Gastric Bypass (OAGB). Obes Surg. 2021; 31(7):3251-3278. DOI: 10.1007/s11695-021-05413-x. View