Cited by 946Bariatric Surgery and OutcomesMinimally Invasive Surgical TechniquesBody Contouring and Surgery

Effect of Laparoscopic Sleeve Gastrectomy vs Laparoscopic Roux-en-Y Gastric Bypass on Weight Loss at 5 Years Among Patients With Morbid Obesity: The SLEEVEPASS Randomized Clinical Trial

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Salminen, Paulina, Helmiö, Mika, Ovaska, Jari, Juuti, Anne, Leivonen, Marja, Peromaa-Haavisto, Pipsa, Hurme, Saija, Soinio, Minna +2 more·2018·JAMA

Abstract

Importance: Laparoscopic sleeve gastrectomy for treatment of morbid obesity has increased substantially despite the lack of long-term results compared with laparoscopic Roux-en-Y gastric bypass. Objective: To determine whether laparoscopic sleeve gastrectomy and laparoscopic Roux-en-Y gastric bypass are equivalent for weight loss at 5 years in patients with morbid obesity. Design, Setting, and Participants: The Sleeve vs Bypass (SLEEVEPASS) multicenter, multisurgeon, open-label, randomized clinical equivalence trial was conducted from March 2008 until June 2010 in Finland. The trial enrolled 240 morbidly obese patients aged 18 to 60 years, who were randomly assigned to sleeve gastrectomy or gastric bypass with a 5-year follow-up period (last follow-up, October 14, 2015). Interventions: Laparoscopic sleeve gastrectomy (n = 121) or laparoscopic Roux-en-Y gastric bypass (n = 119). Main Outcomes and Measures: The primary end point was weight loss evaluated by percentage excess weight loss. Prespecified equivalence margins for the clinical significance of weight loss differences between gastric bypass and sleeve gastrectomy were -9% to +9% excess weight loss. Secondary end points included resolution of comorbidities, improvement of quality of life (QOL), all adverse events (overall morbidity), and mortality. Results: Among 240 patients randomized (mean age, 48 [SD, 9] years; mean baseline body mass index, 45.9, [SD, 6.0]; 69.6% women), 80.4% completed the 5-year follow-up. At baseline, 42.1% had type 2 diabetes, 34.6% dyslipidemia, and 70.8% hypertension. The estimated mean percentage excess weight loss at 5 years was 49% (95% CI, 45%-52%) after sleeve gastrectomy and 57% (95% CI, 53%-61%) after gastric bypass (difference, 8.2 percentage units [95% CI, 3.2%-13.2%], higher in the gastric bypass group) and did not meet criteria for equivalence. Complete or partial remission of type 2 diabetes was seen in 37% (n = 15/41) after sleeve gastrectomy and in 45% (n = 18/40) after gastric bypass (P > .99). Medication for dyslipidemia was discontinued in 47% (n = 14/30) after sleeve gastrectomy and 60% (n = 24/40) after gastric bypass (P = .15) and for hypertension in 29% (n = 20/68) and 51% (n = 37/73) (P = .02), respectively. There was no statistically significant difference in QOL between groups (P = .85) and no treatment-related mortality. At 5 years the overall morbidity rate was 19% (n = 23) for sleeve gastrectomy and 26% (n = 31) for gastric bypass (P = .19). Conclusions and Relevance: Among patients with morbid obesity, use of laparoscopic sleeve gastrectomy compared with use of laparoscopic Roux-en-Y gastric bypass did not meet criteria for equivalence in terms of percentage excess weight loss at 5 years. Although gastric bypass compared with sleeve gastrectomy was associated with greater percentage excess weight loss at 5 years, the difference was not statistically significant, based on the prespecified equivalence margins. Trial Registration: clinicaltrials.gov Identifier: NCT00793143.

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Authors
Salminen, P., Helmiö, M., Ovaska, J., Juuti, A., Leivonen, M., Peromaa-Haavisto, P., Hurme, S., Soinio, M., Nuutila, P., & Victorzon, M.
Affiliations
  • University of Turku (FI)
  • University of Helsinki (FI)
  • Vaasa Central Hospital (FI)
  • Turku University Hospital (FI)
Corresponding author
Salminen, Paulina
Venue
JAMA
Published
2018-01-16
Volume
319
Issue
3
Pages
241
ISSN
  • 0002-9955 (ISSN-L)
  • 0098-7484
OpenAlex
W2784062190
Cited by
946
References
43
Citations by year
2026: 61 · 2025: 74 · 2024: 106 · 2023: 113 · 2022: 120 · 2021: 128 · 2020: 162 · 2019: 122 · 2018: 57 · 2016: 1 · 2013: 1
FWCI
121.85
Type
journal article
Language
en
Open access
Locations
  • JAMA (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Mary och Georg C. Ehrnrooths Stiftelse
  • Turun Yliopistollinen Keskussairaala
Topics
  • Health Sciences › Medicine › Surgery › Bariatric Surgery and Outcomes
  • Health Sciences › Medicine › Surgery › Minimally Invasive Surgical Techniques
  • Health Sciences › Medicine › Surgery › Body Contouring and Surgery
Keywords
laparoscopic sleeve gastrectomy, laparoscopic Roux-en-Y gastric bypass, morbid obesity, weight loss, excess weight loss, bariatric surgery, type 2 diabetes remission, quality of life, surgical morbidity, mortality, long-term outcomes, equivalence trials, obesity-related comorbidities
MeSH terms
Adolescent, Adult, Diabetes Mellitus, Type 2, Female, Follow-Up Studies, Gastrectomy, Humans, Hyperlipidemias, Hypertension, Male, Middle Aged, Obesity, Morbid, Laparoscopy, Postoperative Complications, Quality of Life, Gastric Bypass, Weight Loss, Treatment Outcome, Young Adult

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