Evidence map›Paper›PMID 31338840›Full record

ArticleActa obstetricia et gynecologica Scandinavica2019

The greater incidence of small-for-gestational-age newborns after gonadotropin-stimulated in vitro fertilization with a supraphysiological estradiol level on ovulation trigger day.

Alexandra S Kohl Schwartz, Vera R Mitter, Sofia Amylidi-Mohr, Pascale Fasel, Mirja A Minger, Costanzo Limoni, Marcel Zwahlen, Michael von Wolff

Open access · hybridAbstract read
In one paragraph

Article in Acta obstetricia et gynecologica Scandinavica, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
8.4field-weighted citation impact, top 2% of its field
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

7 citing papers in PubMed, 33 citations in OpenAlex.

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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 at 2 institutions in 1 country.

Alexandra S Kohl SchwartzDivision of Gynecological Endocrinology and Reproductive Medicine, Bern University Hospital, University of Bern, Inselspital, Bern, Switzerland.ORCID 0000-0002-7558-1327
Vera R MitterDivision of Gynecological Endocrinology and Reproductive Medicine, Bern University Hospital, University of Bern, Inselspital, Bern, Switzerland.ORCID 0000-0002-1483-5020
Sofia Amylidi-MohrDepartment of Feto-maternal Medicine and Obstetrics, University Women's Hospital, University Hospital, University of Bern, Inselspital, Bern, Switzerland.ORCID 0000-0001-5996-4064
Pascale FaselDivision of Gynecological Endocrinology and Reproductive Medicine, Bern University Hospital, University of Bern, Inselspital, Bern, Switzerland.
Mirja A MingerDivision of Gynecological Endocrinology and Reproductive Medicine, Bern University Hospital, University of Bern, Inselspital, Bern, Switzerland.ORCID 0000-0002-0022-9580
Costanzo LimoniUniversity of Applied Sciences and Arts of Southern Switzerland, Lugano, Switzerland.ORCID 0000-0002-2549-9050
Marcel ZwahlenInstitute of Social and Preventive Medicine, University of Bern, Bern, Switzerland.ORCID 0000-0002-6772-6346
Michael von WolffDivision of Gynecological Endocrinology and Reproductive Medicine, Bern University Hospital, University of Bern, Inselspital, Bern, Switzerland.ORCID 0000-0003-4303-2734
University of Bern · CHUniversity of Applied Sciences and Arts of Southern Switzerland · CH

Funding

Merck (Switzerland)
6 · The paper itself

Abstract

introductionReproductive scientists have postulated various risk factors for lower birthweight following conventional gonadotropin-stimulated in vitro fertilization compared with spontaneously conceived children: parental factors (age, health, duration of subfertility and smoking habits); ovarian stimulation; laboratory procedures; the number of oocytes retrieved and the number of embryos transferred. Our aim was to investigate the impact of gonadotropin stimulation and serum estradiol level on the risk of a newborn being small-for-gestational-age. MATERIAL AND

methodsWe conducted a cohort study (2010-2016) of singletons (n = 155) born either after conventional gonadotropin-stimulated in vitro fertilization (using ≥150 IU/d human gonadotropin for stimulation) or after natural cycle in vitro fertilization without any stimulation. We analyzed perinatal outcomes using birthweight percentiles, adjusted for gestational age and sex.

resultsThe proportion of small-for-gestational-age was 11.8% following conventional gonadotropin-stimulated in vitro fertilization and 2.9% after natural cycle in vitro fertilization (P = 0.058). The odds of small-for-gestational-age were significantly higher with supraphysiological estradiol levels in maternal serum on ovulation trigger day (unadjusted odds ratio 4.58; 95% confidence interval 1.35-15.55; P = 0.015). It remained significant after adjusting for maternal height, age and body mass index (adjusted odds ratio 3.83; 95% confidence interval 1.06-13.82; P = 0.041).

conclusionsWe found an associated risk of children being born small-for-gestational-age after conventional gonadotropin-stimulated in vitro fertilization compared with natural cycle in vitro fertilization. This higher risk is significantly associated with supraphysiological estradiol levels. We propose a reduction in the dosage of gonadotropin to minimize the risk of small-for-gestational-age and future health consequences.

Indexed as

Birth WeightInfant, Small for Gestational AgeAdultEstradiolFemaleFertilization in VitroGonadotropinsHumansIncidenceInfant, NewbornInfertility, FemaleMaleOvulation InductionProspective StudiesRisk FactorsEstradiolGonadotropinsgonadotropinhigh-risk pregnancyinfertilityin vitro fertilizationpregnancyreproductive endocrinology

Identifiers

PMID31338840
PMCPMC6899753
OpenAlexW2963137479

What OpenQuestion holds

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LicenceCC BY-NC
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Registered trials

None linked

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.