Evidence map›Paper›PMID 32396557›Full record

ArticlePloS one2020

Right ventricular pressure overload directly affects left ventricular torsion mechanics in patients with precapillary pulmonary hypertension.

Ralf Kaiser, Dan Liu, Paula Arias-Loza, Kai Hu, Katharina Grotemeyer, Peter Nordbeck

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 7 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed, 1 pooled it
0.8field-weighted citation impact, top 25% 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

7 citing papers in PubMed, 1 synthesis or guideline pooled it, 11 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Review
  4. Article
  5. Review
  6. Article
  7. Review
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

6 authors at 2 institutions in 1 country.

Ralf KaiserDepartment of Internal Medicine V, Saarland University Medical Center, Homburg / Saar, Germany.
Dan LiuDepartment of Internal Medicine I, University Hospital Würzburg and Comprehensive Heart Failure Center, Würzburg, Germany.
Paula Arias-LozaDepartment of Internal Medicine I, University Hospital Würzburg and Comprehensive Heart Failure Center, Würzburg, Germany.
Kai HuDepartment of Internal Medicine I, University Hospital Würzburg and Comprehensive Heart Failure Center, Würzburg, Germany.
Katharina GrotemeyerDepartment of Internal Medicine II, Saarland University Medical Center, Homburg / Saar, Germany.
Peter NordbeckDepartment of Internal Medicine I, University Hospital Würzburg and Comprehensive Heart Failure Center, Würzburg, Germany.ORCID 0000-0002-2560-4068
Universitätsklinikum Würzburg · DESaarland University · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

This study examined the impact of septal flattening on left ventricular (LV) torsion in patients with precapillary pulmonary hypertension (PH). Fifty-two patients with proven precapillary PH and 13 healthy controls were included. Ventricular function was assessed including 4D-measurements, tissue velocity imaging, and speckle tracking analysis. Increased eccentricity index (1.39 vs. 1.08, p<0.001), systolic pulmonary artery pressure (64 vs. 29mmHg, p<0.001) and right ventricular Tei index (0.55 vs. 0.28, p = 0.007), and reduced tricuspid annular plane systolic excursion (19.0 vs. 26.5mm, p<0.001) were detected in PH patients as compared to controls. With increasing eccentricity of left ventricle, LV torsion was both decreased and delayed. Torsion rate paralleled this pattern of change during systole, but not during diastole. In conclusion, right ventricular pressure overload directly affects LV torsion mechanics. The echocardiographic methodology applied provides novel insights in the interrelation of right- and left ventricular function.

Indexed as

AdultAgedBlood PressureCase-Control StudiesEchocardiographyHumansHypertension, PulmonaryMiddle AgedPulmonary ArteryRetrospective StudiesTorsion, MechanicalVentricular Dysfunction, LeftVentricular Function, RightVentricular Pressure

Identifiers

PMID32396557
PMCPMC7217436
OpenAlexW3025464403

What OpenQuestion holds

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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.