Evidence map›Paper›PMID 39047705›Full record

ArticleObesity facts2024

Weight Regain following Bariatric Surgery and in vitro Fertilization Outcomes.

Bar Zemer-Tov, Tomer Ziv-Baran, May Igawa, Gabriella Lieberman, Raoul Orvieto, Ronit Machtinger

Abstract read
In one paragraph

Article in Obesity facts, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–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. Review
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

6 authors.

Bar Zemer-TovInfertility and IVF Unit, Department of Obstetrics and Gynecology, Sheba Medical Center, Ramat-Gan, Israel and Faculty of Medicine and Health Science, Tel- Aviv University, Tel Aviv, Israel.
Tomer Ziv-BaranDepartment of Epidemiology and Preventive Medicine, School of Public Health, Faculty of Medicine and Health Science, Tel Aviv University, Tel Aviv, Israel.
May IgawaInfertility and IVF Unit, Department of Obstetrics and Gynecology, Sheba Medical Center, Ramat-Gan, Israel and Faculty of Medicine and Health Science, Tel- Aviv University, Tel Aviv, Israel.
Gabriella LiebermanDepartment of Endocrinology, Sheba Medical Center, Ramat-Gan, Israel and Faculty of Medicine and Health Science, Tel- Aviv University, Tel Aviv, Israel.
Raoul OrvietoInfertility and IVF Unit, Department of Obstetrics and Gynecology, Sheba Medical Center, Ramat-Gan, Israel and Faculty of Medicine and Health Science, Tel- Aviv University, Tel Aviv, Israel.
Ronit MachtingerInfertility and IVF Unit, Department of Obstetrics and Gynecology, Sheba Medical Center, Ramat-Gan, Israel and Faculty of Medicine and Health Science, Tel- Aviv University, Tel Aviv, Israel.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionThe aim of this study was to estimate the time to pregnancy and live birth and evaluate the effect of weight regain in women with a history of bariatric surgery (BS) who underwent in vitro fertilization (IVF) treatments.

methodsThis is a retrospective cohort study. All patients with previous BS who underwent IVF treatment in a tertiary university-affiliated hospital between 2013 and 2022 were included. Time to pregnancy and live birth were compared between patients who regained less than or greater than three points of body mass index (BMI) from the nadir weight after BS. Kaplan-Meier curves and log-rank tests were used to compare groups.

resultsA total of 78 patients were included in this study. The positive β-hCG, clinical pregnancy, and live birth rates following BS were 89.4%, 78.9%, and 50.8%, respectively. The median time from the beginning of IVF treatments to a positive β-hCG test was 2.97 months (95% CI: 1.04-4.89 months), to a clinical pregnancy was 7.1 months (95% CI: 3.56-10.91), and to a live birth was 20.2 months. Women who maintained their nadir BMI following BS had nearly twice the chance of achieving a clinical pregnancy (HR 1.967, 95% CI: 1.026-3.771, p = 0.042) and were approximately three times more likely to achieve a live birth (2.864, 95% CI: 1.196-6.859, p = 0.018) than those who regained at least three points of BMI.

conclusionWeight regain after BS is associated with a lower rate of live births and prolonged time to achieve clinical pregnancy and live birth.

Indexed as

Bariatric SurgeryBody Mass IndexFertilization in VitroLive BirthWeight GainAdultFemaleHumansObesityPregnancyPregnancy OutcomePregnancy RateRetrospective StudiesTime-to-PregnancyBody mass indexIn vitro fertilizationObesityPregnancyWeight regain

Identifiers

PMID39047705
PMCPMC11661842

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