Evidence map›Paper›PMID 41530638›Full record

ArticleObesity surgery2026

Long-Term Outcomes of Revisional Bariatric Surgery after Sleeve Gastrectomy: Comparing Re-sleeve, Gastric Bypass, and Duodenal Switch-type Procedures.

Sultan Almuallem, Ali Safar, Phil Vourtzoumis, Sebastian Demyttenaere, Olivier Court, Amin Andalib

Abstract readComparative Study
PubMed Publisher
In one paragraph

Article in Obesity surgery, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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0citing papers in PubMed
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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

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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

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

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5 · Who and what money

Authors and funding

6 authors.

Sultan AlmuallemDepartment of Surgery, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia.
Ali SafarCenter for Bariatric Surgery, Department of Surgery, McGill University, Montreal, QC, Canada.
Phil VourtzoumisCenter for Bariatric Surgery, Department of Surgery, McGill University, Montreal, QC, Canada.
Sebastian DemyttenaereCenter for Bariatric Surgery, Department of Surgery, McGill University, Montreal, QC, Canada.
Olivier CourtCenter for Bariatric Surgery, Department of Surgery, McGill University, Montreal, QC, Canada.
Amin AndalibCenter for Bariatric Surgery, Department of Surgery, McGill University, Montreal, QC, Canada. Amin.andalib@mcgill.ca.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundSleeve gastrectomy (SG) is the most common bariatric procedure but requires revision in ~ 30% of cases due to suboptimal response or persistent obesity-related medical problems. Revisional options include re-sleeve gastrectomy, Roux-en-Y gastric bypass (RYGB), biliopancreatic diversion with duodenal switch (BPD/DS), and single-anastomosis duodenal switch (SADS), though long-term comparative data are limited.

objectivesTo assess medium- to long-term outcomes of four revisional surgeries after primary SG for suboptimal weight loss or persistent associated medical problems.

settingUniversity hospital.

methodsThis retrospective study analyzed a prospectively maintained database of patients who underwent revisional bariatric surgery after SG between 2010 and 2021. Indications included suboptimal clinical response (< 50% excess weight loss), ≥ 20% recurrent weight gain, or persistent non-reflux obesity-related medical problems lasting ≥ 1 year. Revisions included re-sleeve, RYGB, BPD/DS, and SADS. Patients with ≥ 3 years of follow-up were evaluated for weight loss, associated medical problems resolution, and major complications.

resultsOf 113 eligible patients, 89 (79%) had ≥ 3 years of follow-up (median 70 [35] months). Median pre-revision BMI was 43.0 (8) kg/m², highest in duodenal switch-type procedures (p = 0.005). Median BMI reduction was 6.0 (7) kg/m². BPD/DS showed the highest median total weight loss (20% [12]) and diabetes resolution, though not statistically significant (p = 0.148 and 0.089). Major complications beyond 6 months were similar across groups (p = 0.248).

conclusionsRevisional surgery after primary SG offers modest long-term benefits. Duodenal switch-type procedures show superior trends with comparable safety.

Indexed as

Bariatric SurgeryDuodenumGastrectomyGastric BypassObesity, MorbidReoperationAdultFemaleHumansMaleMiddle AgedRetrospective StudiesTreatment OutcomeWeight LossDuodenal switchRevisional bariatric surgerySADSSleeve gastrectomy

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.