Evidence map›Paper›PMID 30245837›Full record

ArticleOpen heart

Association of peripartum troponin I levels with left ventricular relaxation in women with hypertensive disorders of pregnancy.

Takeshi Umazume, Satoshi Yamada, Takahiro Yamada, Satoshi Ishikawa, Itsuko Furuta, Hiroyuki Iwano, Daisuke Murai, Taichi Hayashi, Kazunori Okada, Mamoru Morikawa and 2 more

Open access · goldAbstract read
In one paragraph

Article in Open heart. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
0.9field-weighted citation impact, top 24% 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

2 citing papers in PubMed, 11 citations in OpenAlex.

  1. Article
  2. 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 1 institution in 1 country.

Takeshi UmazumeDepartment of Obstetrics, Hokkaido University Graduate School of Medicine, Sapporo, Japan.ORCID 0000-0001-9236-9945
Satoshi YamadaDepartment of Cardiovascular Medicine, Hokkaido University Graduate School of Medicine, Sapporo, Japan.
Takahiro YamadaDepartment of Obstetrics, Hokkaido University Graduate School of Medicine, Sapporo, Japan.
Satoshi IshikawaDepartment of Obstetrics, Hokkaido University Graduate School of Medicine, Sapporo, Japan.
Itsuko FurutaDepartment of Obstetrics, Hokkaido University Graduate School of Medicine, Sapporo, Japan.
Hiroyuki IwanoDepartment of Cardiovascular Medicine, Hokkaido University Graduate School of Medicine, Sapporo, Japan.
Daisuke MuraiDepartment of Cardiovascular Medicine, Hokkaido University Graduate School of Medicine, Sapporo, Japan.
Taichi HayashiDepartment of Cardiovascular Medicine, Hokkaido University Graduate School of Medicine, Sapporo, Japan.
Kazunori OkadaFaculty of Health Sciences, Hokkaido University Graduate School of Medicine, Sapporo, Japan.
Mamoru MorikawaDepartment of Obstetrics, Hokkaido University Graduate School of Medicine, Sapporo, Japan.
Hiroyuki TsutsuiDepartment of Cardiovascular Medicine, Hokkaido University Graduate School of Medicine, Sapporo, Japan.
Hisanori MinakamiDepartment of Obstetrics, Hokkaido University Graduate School of Medicine, Sapporo, Japan.
Hokkaido University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Objective: Women with hypertensive disorders of pregnancy (HDP) show elevated risk of heart failure despite decreased circulating plasma volume compared with those with normotensive control pregnancies (NCP). This study was performed to better characterise the heart in women with HDP and determine whether high-sensitivity troponin I (hs-TnI) around childbirth predicts reduced left ventricular (LV) relaxation at 1 month postpartum. Methods: Echocardiography was performed longitudinally during the first, second and third trimesters and immediately postpartum within 1 week and 1 month postpartum in 24 women with HDP, with simultaneous determination of blood variables in comparison with 51 women with NCP. Results: Compared with NCP, HDP showed greater antepartum left atrial (LA) volume, LV mass and inferior vena cava (IVC) diameter, higher peripartum brain natriuretic peptide/N-terminal pro-B-type natriuretic peptide and hs-TnI with the highest value immediately postpartum, and lower early diastolic mitral annular velocity (e') during pregnancy/postpartum. In analyses of data on HDP and NCP, hs-TnI at the third trimester as well as that immediately postpartum was negatively correlated with later e' at 1 month postpartum. The areas under the receiver operating characteristic curves were 0.82 and 0.81 for hs-TnI at the third trimester and immediately postpartum, respectively, in the prediction of reduced LV relaxation at 1 month postpartum. Conclusion: Reduced LV diastolic function and decreased splanchnic blood reservoir may contribute to the increased third trimester IVC diameter and LA volume in women with HDP. The rise in hs-TnI around childbirth was associated with poor LV relaxation ability at 1 month postpartum.

Indexed as

brain natriuretic peptidehypertensionpreeclampsiapregnancyrelaxationtroponin

Identifiers

PMID30245837
PMCPMC6144895
OpenAlexW2890717570

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.