SynthesisObesity surgery2017
Effect of Bariatric Surgery on Thyroid Function in Obese Patients: a Systematic Review and Meta-Analysis.
Synthesis in Obesity surgery, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 50 papers, 2 of them syntheses that pooled 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.
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.
Who cites it
50 citing papers in PubMed, 2 syntheses or guidelines pooled it, 76 citations in OpenAlex.
- Time Trends in Thyroid Hormone Changes Following Bariatric Surgery: A Systematic Review and Meta-Analysis.Obesity surgery · 2026Pooled it
- Thyroid function post-bariatric surgery: an updated systematic review and meta-analysis.Obesity surgery · 2025Pooled it
- Hormonal adaptations to weight loss: Responses to an oral glucose load 4 weeks after obesity surgery and low-energy diet.Diabetes, obesity & metabolism · 2025Trial
- Low Preoperative Free Triiodothyronine, Particularly in Females, Is Associated With Reduced Weight Loss and Diabetes Remission After Bariatric Surgery in Euthyroid Adults.Diabetes/metabolism research and reviews · 2026Article
- Obesity-related thyroid reflections: from weight gain to weight loss.European thyroid journal · 2026Review
- Different impact of sleeve gastrectomy and Roux-en-Y gastric bypass on thyroid function and levothyroxine requirements.Eating and weight disorders : EWD · 2026Observational
- Article
- Overnutrition in mice impairs thyroid hormone biosynthesis and utilization, causing hypothyroidism, despite remarkable thyroidal adaptations.The Journal of clinical investigation · 2026Article
- The public health burden of diabetes mellitus and thyroid disease: twin epidemics.Nature reviews. Endocrinology · 2026Review
- Glucagon-like peptide-1 receptor agonists and risk for cardiovascular events in older adults treated with levothyroxine: a target trial emulation.Cardiovascular diabetology · 2025Observational
- Evaluating the association between TSH and FT4 levels and the incidence of metabolic syndrome: insights from the Tehran thyroid study using joint modeling.Scientific reports · 2025Article
- Thyroid Volume Stabilization and Nodule Progression After Bariatric Surgery: Insights from a Retrospective Study.Obesity surgery · 2025Article
- Semaglutide therapy and iatrogenic thyrotoxicosis.Endocrinology, diabetes & metabolism case reports · 2025Article
- When Should the Treatment of Obesity in Thyroid Disease Begin?Biomedicines · 2025Review
- Review
- Remission of hypothyroidism in post-bariatric surgery patients.Qatar medical journal · 2025Article
- GLP-1 Receptor Agonists: A Promising Therapy for Modern Lifestyle Diseases with Unforeseen Challenges.Pharmaceuticals (Basel, Switzerland) · 2024Review
- Sex-differential testosterone response to long-term weight loss.International journal of obesity (2005) · 2024Observational
- Impaired Sensitivity to Thyroid Hormones is Associated with Central Obesity in Euthyroid Type 2 Diabetes Mellitus Patients with Overweight and Obesity.Diabetes, metabolic syndrome and obesity : targets and therapy · 2024Article
- Gastric bypass surgery in morbid obesity: Influence on thyroid function tests and insulin resistance status.Caspian journal of internal medicine · 2024Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
We aimed to make a meta-analysis regarding the effect of bariatric surgery on thyroid function in obese patients. PubMed, EMBASE, CENTRAL, and four Chinese databases were searched for clinical studies. Data were pooled using Review Manager 5.3, and subgroup and sensitivity analyses were performed if necessary and feasible. As a result, 24 articles were included into meta-analysis. Bariatric surgery was associated with significant decrease in TSH, FT3, and T3 levels. However, FT4, T4, and rT3 levels were not significantly changed postoperatively. In addition, bariatric surgery had a favorable effect on overt and subclinical hypothyroid, with reduction of thyroid hormone requirements postoperatively. In conclusion, TSH, FT3, and T3 decrease are expected following bariatric surgery, as well as non-significant change of T4, FT4, and rT3 levels.
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What OpenQuestion holds
Registered trials
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.