Evidence map›Paper›PMID 32673327›Full record

ArticlePloS one2020

Left ventricular dysfunction in COPD without pulmonary hypertension.

Janne M Hilde, Jonny Hisdal, Ingunn Skjørten, Viggo Hansteen, Morten N Melsom, Ole J Grøtta, Milada C Småstuen, Ingebjørg Seljeflot, Harald Arnesen, Sjur Humerfelt and 1 more

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
0.3field-weighted citation impact, top 39% 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

3 citing papers in PubMed, 4 citations in OpenAlex.

  1. Article
  2. Article
  3. Observational
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

11 authors at 3 institutions in 1 country.

Janne M HildeDepartment of Cardiology, Oslo University Hospital-Aker, Oslo, Norway.
Jonny HisdalDepartment of Cardiology, Oslo University Hospital-Aker, Oslo, Norway.
Ingunn SkjørtenFaculty of Medicine, University of Oslo, Oslo, Norway.
Viggo HansteenDepartment of Cardiology, Oslo University Hospital-Aker, Oslo, Norway.
Morten N MelsomDepartment of Pulmonary Medicine, Oslo University Hospital-Aker, Oslo, Norway.
Ole J GrøttaDepartment of Radiology, Oslo University Hospital-Aker, Oslo, Norway.
Milada C SmåstuenCollege of Applied Sciences, Fac. of Health Sciences, Oslo, Norway.
Ingebjørg SeljeflotFaculty of Medicine, University of Oslo, Oslo, Norway.
Harald ArnesenFaculty of Medicine, University of Oslo, Oslo, Norway.
Sjur HumerfeltDepartment of Pulmonary Medicine, Oslo University Hospital-Aker, Oslo, Norway.
Kjetil SteineFaculty of Medicine, University of Oslo, Oslo, Norway.ORCID 0000-0003-4265-3598
Oslo University Hospital · NOOsloMet – Oslo Metropolitan University · NOUniversity of Oslo · NO

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesWe aimed to assess prevalence of left ventricular (LV) systolic and diastolic function in stable cohort of COPD patients, where LV disease had been thoroughly excluded in advance.

methods100 COPD outpatients in GOLD II-IV and 34 controls were included. Patients were divided by invasive mean pulmonary artery pressure (mPAP) in COPD-PH (≥25 mmHg) and COPD-non-PH (<25 mmHg), which was subdivided in mPAP ≤20 mmHg and 21-24 mmHg. LV myocardial performance index (LV MPI) and strain by tissue Doppler imaging (TDI) were used for evaluation of LV global and systolic function, respectively. LV MPI ≥0.51 and strain ≤-15.8% were considered abnormal. LV diastolic function was assessed by the ratio between peak early (E) and late (A) velocity, early TDI E´, E/E´, isovolumic relaxation time, and left atrium volume.

resultsLV MPI ≥0.51 was found in 64.9% and 88.5% and LV strain ≤-15.8% in 62.2.% and 76.9% in the COPD-non-PH and COPD-PH patients, respectively. Similarly, LV MPI and LV strain were impaired even in patients with mPAP <20 mmHg. In multiple regression analyses, residual volume and stroke volume were best associated to LV MPI and LV strain, respectively. Except for isovolumic relaxation time, standard diastolic echo indices as E/A, E´, E/E´ and left atrium volume did not change from normal individuals to COPD-non-PH.

conclusionsSubclinical LV systolic dysfunction was a frequent finding in this cohort of COPD patients, even in those with normal pulmonary artery pressure. Evidence of LV diastolic dysfunction was hardly present as measured by conventional echo indices.

Indexed as

AgedCase-Control StudiesDiastoleEchocardiography, DopplerFemaleHumansHypertension, PulmonaryMaleMiddle AgedPrevalencePulmonary Disease, Chronic ObstructiveSystoleVentricular Dysfunction, Left

Identifiers

PMID32673327
PMCPMC7365599
OpenAlexW3043716782

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.