Evidence map›Paper›PMID 34537064›Full record

ArticleReproductive biology and endocrinology : RB&E2021

Higher preconceptional maternal body mass index is associated with faster early preimplantation embryonic development: the Rotterdam periconception cohort.

Linette van Duijn, Melek Rousian, Jeffrey Hoek, Sten P Willemsen, Eva S van Marion, Joop S E Laven, Esther B Baart, Régine P M Steegers-Theunissen

Abstract read
In one paragraph

Article in Reproductive biology and endocrinology : RB&E, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
–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

12 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Periconceptional biomarkers for maternal obesity: a systematic review.Reviews in endocrine & metabolic disorders · 2023
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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

8 authors.

Linette van DuijnDepartment of Obstetrics and Gynecology, Erasmus MC, University Medical Center, Dr. Molewaterplein 40, Rotterdam, 3015 GD, The Netherlands.
Melek RousianDepartment of Obstetrics and Gynecology, Erasmus MC, University Medical Center, Dr. Molewaterplein 40, Rotterdam, 3015 GD, The Netherlands.
Jeffrey HoekDepartment of Obstetrics and Gynecology, Erasmus MC, University Medical Center, Dr. Molewaterplein 40, Rotterdam, 3015 GD, The Netherlands.
Sten P WillemsenDepartment of Obstetrics and Gynecology, Erasmus MC, University Medical Center, Dr. Molewaterplein 40, Rotterdam, 3015 GD, The Netherlands.
Eva S van MarionDivision of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, Erasmus MC, University Medical Center, Rotterdam, The Netherlands.
Joop S E LavenDivision of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, Erasmus MC, University Medical Center, Rotterdam, The Netherlands.
Esther B Baart *Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, Erasmus MC, University Medical Center, Rotterdam, The Netherlands.
Régine P M Steegers-Theunissen *Department of Obstetrics and Gynecology, Erasmus MC, University Medical Center, Dr. Molewaterplein 40, Rotterdam, 3015 GD, The Netherlands. r.steegers@erasmusmc.nl.

Funding

Erasmus MC Medical Research Advisor Committee's 'Health Care Efficiency Research' program OZBS72.16080
6 · The paper itself

Abstract

backgroundOverweight and obesity affect millions of people globally, which has also serious implications for reproduction. For example, treatment outcomes after in vitro fertilisation (IVF) are worse in women with a high body mass index (BMI). However, the impact of maternal BMI on embryo quality is inconclusive. Our main aim is to study associations between preconceptional maternal BMI and morphokinetic parameters of preimplantation embryos and predicted implantation potential. In addition, associations with clinical IVF outcomes are investigated.

methodsFrom a tertiary hospital, 268 women undergoing IVF or IVF with intracytoplasmic sperm injection (ICSI) were included; 143 normal weight, 79 overweight and 46 obese women. The embryos of these women were cultured in the EmbryoScope, a time-lapse incubator. The morphokinetic parameters of preimplantation embryos and predicted implantation potential, assessed by the KIDScore algorithm were longitudinally evaluated as primary and secondary outcomes, respectively. The tertiary outcomes included clinical outcomes, i.e., fertilization, implantation and live birth rate.

resultsAfter adjustment for patient- and treatment-related factors, we demonstrated in 938 embryos that maternal BMI is negatively associated with the moment of pronuclear appearance (β

conclusionsHigher maternal BMI is associated with faster early preimplantation development. In couples with female or combined factor subfertility, a higher BMI is associated with a lower implantation potential as predicted by the KIDScore. Likely due to power issues, we did not observe an impact on clinical treatment outcomes. However, an effect of faster preimplantation development on post-implantation development is conceivable, especially since the impact of maternal BMI on pregnancy outcomes has been widely demonstrated.

Indexed as

Body Mass IndexAdultBlastocystCohort StudiesEmbryo ImplantationEmbryonic DevelopmentFemaleFertilizationFertilization in VitroHumansInfertilityMothersNetherlandsObesityOverweightPregnancyBody mass indexEmbryo developmentMorphokineticsPreimplantationTime-lapse

Identifiers

PMID34537064
PMCPMC8449446

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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.