Evidence map›Paper›PMID 34664753›Full record

ArticleUltrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology2022

Increased levels of soluble fms-like tyrosine kinase-1 are associated with adverse outcome in pregnant women with COVID-19.

J Torres-Torres, S Espino-Y-Sosa, L C Poon, J M Solis-Paredes, G Estrada-Gutierrez, A Espejel-Nuñez, A Juarez-Reyes, A Etchegaray-Solana, Y Alfonso-Guillen, L Aguilar-Andrade and 3 more

Open access · bronzeAbstract read
In one paragraph

Article in Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 2 pooled it
3.0field-weighted citation impact, top 8% 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

12 citing papers in PubMed, 2 syntheses or guidelines pooled it, 22 citations in OpenAlex.

  1. Pooled it
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  11. Does COVID-19 cause pre-eclampsia?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

13 authors at 4 institutions in 2 countries.

J Torres-TorresMaternal-Fetal Medicine Department, General Hospital of Mexico, 'Dr Eduardo Liceaga', Mexico City, Mexico.
S Espino-Y-SosaClinical Research Branch, National Institute of Perinatology, Mexico City, Mexico.
L C PoonChinese University of Hong Kong, Hong Kong SAR.ORCID 0000-0002-3944-4130
J M Solis-ParedesClinical Research Branch, National Institute of Perinatology, Mexico City, Mexico.
G Estrada-GutierrezResearch Direction, National Institute of Perinatology, Mexico City, Mexico.
A Espejel-NuñezImmunobiochemistry Department, National Institute of Perinatology, Mexico City, Mexico.
A Juarez-ReyesMaternal-Fetal Medicine Department, General Hospital of Mexico, 'Dr Eduardo Liceaga', Mexico City, Mexico.
A Etchegaray-SolanaMaternal-Fetal Medicine Department, General Hospital of Mexico, 'Dr Eduardo Liceaga', Mexico City, Mexico.
Y Alfonso-GuillenMaternal-Fetal Medicine Department, General Hospital of Mexico, 'Dr Eduardo Liceaga', Mexico City, Mexico.
L Aguilar-AndradeClinical Research Branch, National Institute of Perinatology, Mexico City, Mexico.
J A Hernández-PachecoClinical Research Branch, National Institute of Perinatology, Mexico City, Mexico.
J R Villafan-BernalLaboratory of Immunogenomics and Metabolic Diseases, INMEGEN, Mexico City, Mexico.
R J Martinez-PortillaClinical Research Branch, National Institute of Perinatology, Mexico City, Mexico.ORCID 0000-0003-4711-3857
Instituto Nacional de Perinatología · MXHospital General de México · MXChinese University of Hong Kong · HKNational Institute of Genomic Medicine · MX

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveIn addition to the lungs, the placenta and the endothelium can be affected by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Soluble fms-like tyrosine kinase-1 (sFlt-1) and placental growth factor (PlGF) are markers of endothelial dysfunction and could potentially serve as predictors of severe coronavirus disease 2019 (COVID-19). We aimed to investigate the association of serum concentrations of sFlt-1 and PlGF with the severity of COVID-19 in pregnancy.

methodsThis was a prospective cohort study carried out in a tertiary care hospital in Mexico City, Mexico. Symptomatic pregnant women with a positive reverse-transcription quantitative polymerase chain reaction test for SARS-CoV-2 infection who fulfilled the criteria for hospitalization were included. The primary outcome was severe pneumonia due to COVID-19. Secondary outcomes were intensive care unit (ICU) admission, viral sepsis and maternal death. sFlt-1 levels were expressed as multiples of the median (MoM). The association between sFlt-1 and each adverse outcome was explored by logistic regression analysis, adjusted for gestational age for outcomes occurring in more than five patients, and the predictive performance was assessed by receiver-operating-characteristics-curve analysis.

resultsAmong 113 pregnant women with COVID-19, higher sFlt-1 MoM was associated with an increased probability of severe pneumonia (adjusted odds ratio (aOR), 1.817 (95% CI, 1.365-2.418)), ICU admission (aOR, 2.195 (95% CI, 1.582-3.047)), viral sepsis (aOR, 2.318 (95% CI, 1.407-3.820)) and maternal death (unadjusted OR, 5.504 (95% CI, 1.079-28.076)). At a 10% false-positive rate, sFlt-1 MoM had detection rates of 45.2%, 66.7%, 83.3% and 100% for severe COVID-19 pneumonia, ICU admission, viral sepsis and maternal death, respectively. PlGF values were similar between women with severe and those with non-severe COVID-19 pneumonia.

conclusionsFlt-1 MoM is higher in pregnant women with severe COVID-19 and has the capability to predict serious adverse pregnancy events, such as severe pneumonia, ICU admission, viral sepsis and maternal death. © 2021 International Society of Ultrasound in Obstetrics and Gynecology.

Indexed as

COVID-19Pneumonia, ViralPregnancy Complications, InfectiousAdultCohort StudiesEndothelium, VascularFemaleGestational AgeHumansIntensive Care UnitsMexicoMortalityPlacentaPlacenta Growth FactorPregnancySARS-CoV-2FLT1 protein, humanPGF protein, humanPlacenta Growth FactorVascular Endothelial Growth Factor Receptor-1COVID-19endothelial dysfunctionmaternal deathplacentaplacental growth factorSARS-CoV-2

Identifiers

PMID34664753
PMCPMC8661924
OpenAlexW3204977610

What OpenQuestion holds

Textmetadata
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.