Revisional bariatric surgery for conversion to gastric bypass after primary vertical gastroplasty and gastroesophageal reflux disease - A retrospective cohort study from a general surgery service

Authors

DOI:

https://doi.org/10.33448/rsd-v15i1.50537

Keywords:

Obesity, Gastric sleeve, Gastric bypass, Gastroesophageal reflux disease, Revisional surgery.

Abstract

Obesity is a chronic multifactorial disease associated with increased morbidity and mortality, as well as metabolic and gastrointestinal comorbidities, including gastroesophageal reflux disease (GERD). Bariatric surgery is the most effective treatment for severe obesity, with sleeve gastrectomy and Roux-en-Y gastric bypass being the most commonly performed procedures. However, long-term limitations of sleeve gastrectomy, such as weight regain and worsening GERD, have increased the demand for revisional surgery. This retrospective study analyzed patients who underwent sleeve gastrectomy between 2015 and 2022 in Rio de Janeiro, focusing on the need for conversion to gastric bypass. The cohort showed a predominance of female patients, a mean age of 37 years, and a mean initial BMI of 44.2 kg/m². Approximately 9.7% required revisional surgery, mainly due to refractory GERD and weight regain. Conversion to gastric bypass resulted in significant improvement in reflux symptoms and sustained weight loss. Gastric bypass proved to be a safe and effective revisional option.

References

Bou Daher, H. & Sharara, A. I. (2019). Gastroesophageal reflux disease, obesity and laparoscopic sleeve gastrectomy: The burning questions. World Journal of Gastroenterology. 25(33), 4805-13. DOI: 10.3748/wjg.v25.i33.4805.

Braghetto, I. & Csendes, A. (2016). Prevalence of Barrett’s Esophagus in Bariatric Patients Undergoing Sleeve Gastrectomy. Obesity Surgery. 26(4), 710-4.

Campos, G. M. et al. (2021). ASMBS position statement on the rationale for performance of upper gastrointestinal endoscopy before and after metabolic and bariatric surgery. Surgery for Obesity and Related Diseases. 17(5), 837-47.

Colaboradores do Fator de Risco GBD (2020). Carga global de 87 fatores de risco em 204 países e territórios, 1990-2019: uma análise sistemática para o estudo de carga global de doenças 2019. The Lancet. 396, 1223-49.

Cui, B. B. et al. (2021). Long-term outcomes of Roux-en-Y gastric bypass versus medical therapy for patients with type 2 diabetes: a meta-analysis of randomized controlled trials. Surgery for Obesity and Related Diseases, v. 17, n. 7, p. 1334-1343.

Dang, J. T. et al. (2023). Conversion of Sleeve Gastrectomy to Roux-en-Y Gastric Bypass: Indications, Prevalence, and Safety. Obesity Surgery. 1-8. DOI: 10.1007/s11695-023-06546-x.

Del Gobbo, G. D. et al. (2021). Conversion of Sleeve Gastrectomy to Roux-en-Y Gastric Bypass to Enhance Weight Loss: Single Enterprise Mid-Term Outcomes and Literature Review. Bariatric Surgical Practice and Patient Care. 17(4), 197-205. DOI: 10.1089/bari.2021.0096.

Frankel, A. et al. (2022). Laparoscopic fundoplication versus laparoscopic Roux-en-Y gastric bypass for gastro-oesophageal reflux disease in obese patients: protocol for a randomized clinical trial. BJS Open. 6(6), zrac132. DOI: 10.1093/bjsopen/zrac132.

Höskuldsdottir, G. et al. (2022). Comparing effects of obesity treatment with very low energy diet and bariatric surgery after 2 years: a prospective cohort study. BMJ Open. 12(4), e053242.

Marti-Fernandez, R. et al. (2020). Roux-en-Y Gastric Bypass as an Effective Bariatric Revisional Surgery after Restrictive Procedures. Obesity Facts. 13(3), 367-74. DOI: 10.1159/000507710.

Pereira, A. S. et al. (2018). Metodologia da pesquisa científica. (Free ebook). Santa Maria. Editora da UFSM.

Peterli, R. et al. (2018). Effect of Laparoscopic Sleeve Gastrectomy vs Laparoscopic Roux-en-Y Gastric Bypass on Weight Loss in Patients With Morbid Obesity: The SM-BOSS Randomized Clinical Trial. JAMA. 319(3), 255-65.

Shitsuka, R. et al. (2014). Matemática fundamental para tecnologia. (2ed). Editora Érica.

Singh, S. et al. (2013). Central adiposity is associated with increased risk of esophageal inflammation, metaplasia, and adenocarcinoma: a systematic review and meta-analysis. Clinical Gastroenterology and Hepatology. 11(11), 1399-412.

Veziant, J. et al. (2023). Obesity, sleeve gastrectomy and gastro-esophageal reflux disease. Journal of Visceral Surgery. 160(2S), S47-S54. DOI: 10.1016/j.jviscsurg.2023.01.004.

WHO. (2020). Obesity and overweight. Geneva: WORLD HEALTH ORGANIZATION (WHO). https://www.who.int/news-room/fact-sheets/detail/obesity-and-overweight.

Yeo, C. J. et al. (2019). Stomach and small intestine – Operations for morbid obesity. In: Demeester, S. R & McFadden, D. W. (Ed.). Shackelford’s Surgery of the alimentary tract. 8. ed. Philadelphia: Elsevier. p. 735-748.

Yeung, K. T. D. et al. (2020). Does Sleeve Gastrectomy Expose the Distal Esophagus to Severe Reflux?: A Systematic Review and Meta-analysis. Annals of Surgery. 271(2), 257-65.

Published

2026-01-19

Issue

Section

Health Sciences

How to Cite

Revisional bariatric surgery for conversion to gastric bypass after primary vertical gastroplasty and gastroesophageal reflux disease - A retrospective cohort study from a general surgery service. Research, Society and Development, [S. l.], v. 15, n. 1, p. e3815150537, 2026. DOI: 10.33448/rsd-v15i1.50537. Disponível em: https://rsdjournal.org/rsd/article/view/50537. Acesso em: 22 jan. 2026.