Evidence map›Paper›PMID 31795971›Full record

ArticleBMC pregnancy and childbirth2019

Mean arterial blood pressure: potential predictive tool for preeclampsia in a cohort of healthy nulliparous pregnant women.

Jussara Mayrink, Renato T Souza, Francisco E Feitosa, Edilberto A Rocha Filho, Débora F Leite, Janete Vettorazzi, Iracema M Calderon, Maria L Costa, Louise Kenny, Philip Baker and 2 more

Open access · goldAbstract readMulticenter Study
In one paragraph

Article in BMC pregnancy and childbirth, 2019. 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
3.2field-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, 35 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Trial
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Interplay of Oxidative Stress and Nitric Oxide Synthase Gene Expression on Cardiovascular Responses in Preeclampsia.Revista brasileira de ginecologia e obstetricia : revista da Federacao Brasileira das Sociedades de Ginecologia e Obstetricia · 2022
    Article
  10. Article
  11. Article
  12. Article
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

12 authors at 6 institutions in 2 countries.

Jussara MayrinkDepartment of Obstetrics and Gynecology, University of Campinas (UNICAMP) School of Medical Sciences, Rua Alexander Fleming, 101, Campinas, SP, 13083-891, Brazil.
Renato T SouzaDepartment of Obstetrics and Gynecology, University of Campinas (UNICAMP) School of Medical Sciences, Rua Alexander Fleming, 101, Campinas, SP, 13083-891, Brazil.
Francisco E FeitosaMEAC, Maternity Hospital of the Federal University of Ceará, Fortaleza, CE, Brazil.
Edilberto A Rocha FilhoDepartment of Maternal and Child Health, Maternity Hospital, Federal University of Pernambuco, Recife, PE, Brazil.
Débora F LeiteDepartment of Obstetrics and Gynecology, University of Campinas (UNICAMP) School of Medical Sciences, Rua Alexander Fleming, 101, Campinas, SP, 13083-891, Brazil.
Janete VettorazziDepartment of Obstetrics and Gynecology, Maternity Hospital, Federal University of RS, Porto Alegre, RS, Brazil.
Iracema M CalderonDepartment of Obstetrics and Gynecology, Botucatu Medical School, Unesp, Botucatu, SP, Brazil.
Maria L CostaDepartment of Obstetrics and Gynecology, University of Campinas (UNICAMP) School of Medical Sciences, Rua Alexander Fleming, 101, Campinas, SP, 13083-891, Brazil.
Louise KennyCollege of Life Sciences, University of Leicester, Leicester, UK.
Philip BakerFaculty of Health and Life Sciences, Department of Women's and Children's Health, Institute of Translational Medicine, University of Liverpool, Liverpool, UK.
Jose G CecattiDepartment of Obstetrics and Gynecology, University of Campinas (UNICAMP) School of Medical Sciences, Rua Alexander Fleming, 101, Campinas, SP, 13083-891, Brazil. cecati@unicamp.br.ORCID http://orcid.org/0000-0003-1285-8445
Preterm SAMBA study group
Universidade Estadual de Campinas (UNICAMP) · BRUniversity of Liverpool · GBUniversidade Estadual Paulista (Unesp) · BRUniversidade Federal de Pernambuco · BRUniversidade Federal do Ceará · BRUniversity of Leicester · GB

Funding

Bill and Melinda Gates Foundation OPP1107597Conselho Nacional de Desenvolvimento Científico e Tecnológico 401636/2013-5
6 · The paper itself

Abstract

backgroundPrediction of preeclampsia is a challenge to overcome. The vast majority of prospective studies in large general obstetric populations have failed in the purpose of obtain a useful and effective model of prediction, sometimes based on complex tools unavaible in areas where the incidence of preeclampsia is the highest. The goal of this study was to assess mean arterial blood pressure (MAP) levels at 19-21, 27-29 and 37-39 weeks of gestation and performance of screening by MAP for the prediction of preeclampsia in a Brazilian cohort of healthy nulliparous pregnant women.

methodsThis was a cohort approach to a secondary analysis of the Preterm SAMBA study. Mean arterial blood pressure was evaluated at three different time periods during pregnancy. Groups with early-onset preeclampsia, late-onset preeclampsia and normotension were compared. Increments in mean arterial blood pressure between 20 and 27 weeks and 20 and 37 weeks of gestation were also calculated for the three groups studied. The accuracy of mean arterial blood pressure in the prediction of preeclampsia was determined by ROC curves.

resultsOf the 1373 participants enrolled, complete data were available for 1165. The incidence of preeclampsia was 7.5%. Women with early-onset preeclampsia had higher mean arterial blood pressure levels at 20 weeks of gestation, compared to the normotensive group. Women with late-onset preeclampsia had higher mean arterial blood pressure levels at 37 weeks of gestation, than the normotensive groups and higher increases in this marker between 20 and 37 weeks of gestation. Based on ROC curves, the predictive performance of mean arterial blood pressure was higher at 37 weeks of gestation, with an area under the curve of 0.771.

conclusionAs an isolated marker for the prediction of preeclampsia, the performance of mean arterial blood pressure was low in a healthy nulliparous pregnant women group. Considering that early-onset preeclampsia cases had higher mean arterial blood pressure levels at 20 weeks of gestation, future studies with larger cohorts that combine multiple markers are needed for the development of a preeclampsia prediction model.

Indexed as

AdultArterial PressureBrazilCohort StudiesFemaleHumansParityPredictive Value of TestsPre-EclampsiaPregnancyRisk FactorsBlood pressureHypertensionPreeclampsiaPrenatal screeningSecond trimesterThird trimester

Identifiers

PMID31795971
PMCPMC6892235
OpenAlexW2992695225

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.