Evidence mapPaperPMID 41144146Full record

Trial reportObesity surgery2025

Ten‑Year Results of a Randomized Trial Comparing Banded Roux‑en‑Y Gastric Bypass to Sleeve Gastrectomy for Type 2 Diabetes and Weight Loss.

Megan Elizabeth Grinlinton, Preekesh Patel, Anamitra Nair, Michael Clarke, Lindsay Plank, Rinki Murphy, Michael Booth

Abstract readRandomized Controlled TrialComparative Study
PubMed Publisher
In one paragraph

Trial report in Obesity surgery, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed, 1 pooled it
field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors.

Megan Elizabeth GrinlintonDepartment of General Surgery, Te Whatu Ora Waitematā, Auckland, New Zealand. megan.grinlinton@gmail.com.
Preekesh PatelDepartment of General Surgery, Te Whatu Ora Waitematā, Auckland, New Zealand.
Anamitra NairDepartment of General Surgery, Te Whatu Ora Waitematā, Auckland, New Zealand.
Michael ClarkeDepartment of General Surgery, Royal Cornwall Hospital, Truro, UK.
Lindsay PlankDepartment of Surgery, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand.
Rinki MurphyDepartment of Medicine, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand.
Michael BoothDepartment of General Surgery, Te Whatu Ora Waitematā, Auckland, New Zealand.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundLaparoscopic Roux-en-Y gastric bypass (LRYGB) and laparoscopic sleeve gastrectomy (LSG) are common bariatric procedures that are effective in treating type 2 diabetes (T2D) in patients with obesity. The addition of a silastic-ring (SR) to LRYGB may increase weight loss, reduce weight regain, and improve diabetes remission. Five and seven-year results from a prospective, randomized, parallel, two-arm, clinical trial at North Shore Hospital (Auckland, Aotearoa New Zealand) found that SR-LRYGB was superior to LSG for diabetes remission and weight loss following surgery, with acceptable complication rates. Results on longer-term outcomes are still emerging in the literature.

methodsA 10-year analysis was conducted on 114 patients with T2D who underwent SR-LRYGB or LSG. The primary outcome was diabetes remission assessed at 10 years. Secondary outcomes included percentage total body weight loss (%TWL) and complications.

resultsOf 114 patients randomized to either SR-LRYGB or LSG, 10 years after surgery, diabetes remission was seen in 15/49 (30.6%) after SR-LRYGB and 7/40 (17.5%) after LSG (adjusted OR 3.3; 95% confidence interval (CI) 1.0, 10.6; p = 0.042). Percentage total body weight loss was greater after SR-LRYGB than LSG (27.2% vs. 20.2%, absolute difference 7.0% 95% CI 2.2%, 11.8%; p = 0.005). Late minor complication rates were 28.6% after SR-LRYGB and 19.0% after LSG (absolute difference 9.6%, p = 0.226). Late major complication rates were 25.0% after SR-LRYGB and 31.0% after LSG (absolute difference 6.0%, p = 0.535).

conclusionsSR-LRYGB remains superior to LSG for diabetes remission and weight loss at 10 years following surgery. This study confirms long-term enhanced patient outcomes in patients undergoing SR-LRYGB when compared directly with LSG. This study adds to the mounting body of evidence that demonstrates sustained diabetes remission and weight loss in patients undergoing SR-LRYGB.

Indexed as

Diabetes Mellitus, Type 2GastrectomyGastric BypassLaparoscopyObesity, MorbidWeight LossAdultFemaleFollow-Up StudiesHumansMaleMiddle AgedNew ZealandProspective StudiesTreatment OutcomeBanded-RYGBBariatric surgeryMetabolic surgeryRoux-en-Y gastric bypassSilastic ringSleeve gastrectomyType 2 diabetes

Identifiers

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.