Evidence map›Paper›PMID 35428959›Full record

ArticleJournal of assisted reproduction and genetics2022

A case series to examine the perinatal outcomes of infants conceived by intravaginal culture (IVC).

Madeline Kaye, Elizabeth Williams, Anthony Anderson, Francisco Arredondo, Jordyn Pike, Winifred Mak

Abstract read
In one paragraph

Article in Journal of assisted reproduction and genetics, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
2citing 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

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

  1. Pooled it
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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

6 authors.

Madeline KayeDepartment of Women's Health, Dell Medical School, University of Texas at Austin, Austin, TX, USA.
Elizabeth WilliamsHavenCryo, San Antonio, TX, USA.
Anthony AndersonEmbryodirector.Com, San Antonio, TX, USA.
Francisco ArredondoPositib Fertility, Monterrey, Mexico.
Jordyn PikeDepartment of Women's Health, Dell Medical School, University of Texas at Austin, Austin, TX, USA.
Winifred MakDepartment of Women's Health, Dell Medical School, University of Texas at Austin, Austin, TX, USA. winifred.mak@austin.utexas.edu.ORCID http://orcid.org/0000-0003-4885-4446

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeIn vitro fertilization (IVF) has been a well-established method for treating infertility for over four decades. The mainstay method of culture of oocytes and embryos has been in gas incubators. More recently, the novel use of a gas-permeable closed vessel to culture oocytes and embryos in the vagina, intravaginal culture (IVC), has been introduced as a viable lower-cost option for infertility patients. Several studies have studied the efficacy of IVC; however, there is no data on the perinatal outcomes of the babies born using this newer technology.

methodsOur study is a retrospective case series (n = 66) from a single center, uniquely examining the perinatal outcomes of infants born after IVC.

resultsThere were 50 singleton and 16 twin gestations in this case series. For singleton infants conceived via IVC (n = 50), the mean gestational age at delivery was 38 weeks and 4 days, and the mean birth weight was 3159.1 + / - 501.5 g. Four infants were born with low birth weight, three were born preterm, and one was born macrosomic. The twin pregnancies had a mean gestational age at delivery of 33 weeks 4 days and a mean birth weight of 1992.9 + / - 620.7 g. Twenty-seven infants met the criteria for low birthweight, and twenty-four infants delivered preterm. No twin infants met the criteria for macrosomia.

conclusionThis case series provides an initial description of the perinatal outcomes of IVC conceived infants, which shows no concerning trends in adverse birth outcomes for singleton infants. As expected, IVC twin gestations had a high rate of low birth weight and preterm delivery. Continued larger studies are essential to provide more comprehensive data on perinatal outcomes of infants conceived by this new technology.

Indexed as

InfertilityPremature BirthBirth WeightFemaleFertilization in VitroHumansInfant, NewbornInfant, PrematurePopulation SurveillancePregnancyPregnancy OutcomePregnancy, TwinReproductive Techniques, AssistedRetrospective StudiesIntravaginal cultureIn vitro fertilizationPerinatal outcomes

Identifiers

PMID35428959
PMCPMC9174411

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