Evidence map›Paper›PMID 41739432›Full record

ArticleObesity surgery2026

Rapid Recurrent Weight Gain Within Two Years of Sleeve Gastrectomy: Clinical Predictors and Metabolic Consequences.

Wei-Leng Chin, Chung-Yen Chen, Wan-Ling Tu, Jian-Han Chen, Yung-Chieh Yen, Tien-Tsan Hung

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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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1 · What the graph read from it

What it found

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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

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4 · The record

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5 · Who and what money

Authors and funding

6 authors.

Wei-Leng ChinDepartment of Chemical Engineering & Institute of Biotechnology and Chemical Engineering, I-Shou University, Kaohsiung City, Taiwan.
Chung-Yen ChenDivision of General Surgery, E-Da Hospital, Kaohsiung City, Taiwan.
Wan-Ling TuDepartment of Nutrition Therapy, E-Da Hospital, Kaohsiung City, Taiwan.
Jian-Han ChenDivision of General Surgery, E-Da Hospital, Kaohsiung City, Taiwan. jamihan1981@gmail.com.
Yung-Chieh YenSchool of Medicine, College of Medicine, I-Shou University, Kaohsiung City, Taiwan.
Tien-Tsan HungDepartment of Chemical Engineering & Institute of Biotechnology and Chemical Engineering, I-Shou University, Kaohsiung City, Taiwan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

This study aimed to identify risk factors for rapid recurrent weight gain (RRWG), defined as ≥ 20% regain from the weight loss 1 year postoperatively within 2 years after laparoscopic sleeve gastrectomy (LSG). In this retrospective cohort study, we analyzed 201 consecutive adults who underwent LSG, with weight recorded preoperatively and at 3, 6, 12, and 24 months postoperatively, and with extended follow-up to 5 years. Laboratory parameters, comorbidities, psychological evaluations, and medication use were also assessed. The median preoperative body mass index (BMI) was 39.4 kg/m². The median total body weight loss (TBWL) was 28.6% at 6 months, 34.4% at 1 year, and 32.9% at 2 years. Although weight loss outcomes were comparable between groups at 1 year, by 2 years the RRWG group showed significantly lower excess body weight loss (EBWL) and TBWL, as well as fewer patients achieving EBWL ≥ 50% (P < 0.001). Mid-term follow-up revealed persistently higher recurrence rates in the RRWG group at 3-4 years, with a continuing trend at 5 years. Compared with the maintained weight loss (MW) group, RRWG patients demonstrated a higher prevalence of diabetes (26.3% vs. 7.1%, P = 0.017), greater worsening of dyslipidemia (57.9% vs. 25.3%, P = 0.006), and lower rates of hypertension remission (46.2% vs. 62.5%, P = 0.002) at 24 months. Multivariable analysis identified preoperative BMI < 37.4 (aOR = 5.036, P = 0.001), and TBWL at 12 months < 25% (aOR = 4.930, P = 0.036) as independent predictors of RRWG. Lower preoperative BMI, and suboptimal 12-month weight loss independently predicted RRWG after LSG. Early identification of high-risk patients is essential to optimize long-term outcomes after LSG.

Indexed as

GastrectomyLaparoscopyObesity, MorbidWeight GainAdultBody Mass IndexFemaleFollow-Up StudiesHumansMaleMiddle AgedRecurrenceRetrospective StudiesRisk FactorsTime FactorsTreatment OutcomeBody mass indexHypertension remissionMetabolic outcomesRecurrent weight gainSleeve gastrectomyTotal body weight loss

Identifiers

PMID41739432

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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 OpenQuestion graph.