Evidence map›Paper›PMID 28974308›Full record

ArticleFertility and sterility2017

Embryo cryopreservation and preeclampsia risk.

Cynthia K Sites, Donna Wilson, Maya Barsky, Dana Bernson, Ira M Bernstein, Sheree Boulet, Yujia Zhang

Open access · bronzeAbstract read
In one paragraph

Article in Fertility and sterility, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 45 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
45citing papers in PubMed, 3 pooled it
7.9field-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

45 citing papers in PubMed, 3 syntheses or guidelines pooled it, 82 citations in OpenAlex.

  1. Pooled it
  2. Does contemporary ART lead to pre-eclampsia? A cohort study and meta-analysis.Journal of assisted reproduction and genetics · 2021
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  15. Fetal neurosonography and infant neurobehavior following conception by assisted reproductive technology with fresh or frozen embryo transfer.Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology · 2022
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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

7 authors at 4 institutions in 1 country.

Cynthia K SitesDepartment of Obstetrics and Gynecology, Baystate Medical Center, Springfield, Massachusetts. Electronic address: Cynthia.sites@baystatehealth.org.
Donna WilsonDepartment of Epidemiology and Biostatistics, Baystate Medical Center, Springfield, Massachusetts.
Maya BarskyDepartment of Obstetrics and Gynecology, Baystate Medical Center, Springfield, Massachusetts.
Dana BernsonMassachusetts Department of Public Health, Boston, Massachusetts.
Ira M BernsteinDepartment of Obstetrics and Gynecology, University of Vermont, Burlington, Vermont.
Sheree BouletCenters for Disease Control and Prevention, Atlanta, Georgia.
Yujia ZhangCenters for Disease Control and Prevention, Atlanta, Georgia.
Baystate Medical Center · USCenters for Disease Control and Prevention · USMassachusetts Department of Public Health · USUniversity of Vermont · US

Funding

Intramural CDC HHS CC999999
6 · The paper itself

Abstract

objectiveTo determine whether assisted reproductive technology (ART) cycles involving cryopreserved-warmed embryos are associated with the development of preeclampsia.

designRetrospective cohort study.

settingIVF clinics and hospitals. PATIENT(S): A total of 15,937 births from ART: 9,417 singleton and 6,520 twin. INTERVENTION(S): We used linked ART surveillance, birth certificate, and maternal hospitalization discharge data, considering resident singleton and twin births from autologous or donor eggs from 2005-2010. MAIN OUTCOME MEASURE(S): We compared the frequency of preeclampsia diagnosis for cryopreserved-warmed versus fresh ET and used multivariable logistic regression to adjust for confounders. RESULT(S): Among pregnancies conceived with autologous eggs resulting in singletons, preeclampsia was greater after cryopreserved-warmed versus fresh ET (7.51% vs. 4.29%, adjusted odds ratio = 2.17 [95% CI 1.67-2.82]). Preeclampsia without and with severe features, preeclampsia with preterm delivery, and chronic hypertension with superimposed preeclampsia were more frequent after cryopreserved-warmed versus fresh ET (3.99% vs. 2.55%; 2.95% vs. 1.41%; 2.76 vs. 1.48%; and 0.95% vs. 0.43%, respectively). Among pregnancies from autologous eggs resulting in twins, the frequency of preeclampsia with severe features (9.26% vs. 5.70%) and preeclampsia with preterm delivery (14.81% vs. 11.74%) was higher after cryopreserved versus fresh transfers. Among donor egg pregnancies, rates of preeclampsia did not differ significantly between cryopreserved-warmed and fresh ET (10.78% vs. 12.13% for singletons and 28.0% vs. 25.15% for twins). CONCLUSION(S): Among ART pregnancies conceived using autologous eggs resulting in live births, those involving transfer of cryopreserved-warmed embryos, as compared with fresh ETs, had increased risk for preeclampsia with severe features and preeclampsia with preterm delivery.

Indexed as

BlastocystCryopreservationChi-Square DistributionEmbryo TransferFemaleFertilityFertilization in VitroHumansInfertilityLive BirthLogistic ModelsMultivariate AnalysisOdds RatioPre-EclampsiaPregnancyPregnancy, Twinembryo cryopreservationPreeclampsiapreterm deliverysingleton birthtwin birth

Identifiers

PMID28974308
PMCPMC10999961
OpenAlexW2758715219

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

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.