Evidence mapPaperPMID 42554792Full record

ArticleObesity surgery2026

Menstrual and Reproductive Function Before and After Metabolic Bariatric Surgery.

Martin Whyte, Stephanie Attersley-Smith, Kathryn Hart, Sophia Stone, Christopher Pring, Jill Shawe

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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

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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

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4 · The record

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5 · Who and what money

Authors and funding

6 authors.

Martin WhyteUniversity of Surrey, Guildford, UK. m.b.whyte@surrey.ac.uk.ORCID https://orcid.org/0000-0002-2897-2026
Stephanie Attersley-SmithUniversity of Surrey, Guildford, UK.
Kathryn HartUniversity of Surrey, Guildford, UK.
Sophia StoneUniversity Hospitals Sussex NHS Foundation Trust, Chichester, UK.
Christopher PringUniversity Hospitals Sussex NHS Foundation Trust, Chichester, UK.
Jill ShaweRoyal Cornwall Hospital Trust, Truro, UK.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimsTo evaluate the impact of metabolic bariatric surgery on menstrual function, hormonal profiles, and reproductive health in women of reproductive age. MATERIALS AND

methodsIn this prospective cohort study, women aged 18-45 years undergoing Roux-en-Y gastric bypass or sleeve gastrectomy were recruited from a UK bariatric centre and followed for up to 24 months. Control participants were women with obesity receiving non-surgical weight management. Participants consented to clinical, biochemical, ultrasonographic, and questionnaire-based assessments of menstruation and pregnancy intentions.

resultsEighty-four women underwent surgery (49 bypass, 35 sleeve); 18 controls without surgery. By 24 months, 15 were lost to follow-up; mean excess weight loss was 64-73% with no difference between procedures. Anti-Mullerian Hormone (AMH) (n = 33) decreased post-surgery (16.6 to 16.0 pmol/L; P < 0.001); sex hormone-binding globulin (SHBG) increased (30.6 to 66.8 nmol/L; P < 0.001), and free androgen index (FAI) decreased (3.92 to 1.84; P < 0.001). Irregular menstruation and hirsutism decreased. Among 66 women with baseline transvaginal ultrasound scans, 33% had polycystic ovarian morphology, reducing to 10% postoperatively (n = 17); ovarian volume decreased significantly. At baseline (n = 76), 31% of surgical participants expressed a desire for pregnancy. Twenty pregnancies occurred, most 12-24 months post-surgery.

conclusionsMetabolic bariatric surgery was associated with > 30 kg weight loss by 24 months, reduced FAI, and improvements in menstrual regularity, and ovarian morphology, suggesting potential improvement in fertility-related parameters. Given high pregnancy intention, findings support the need for integrated reproductive counselling and preconception care within bariatric pathways.

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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.