Evidence map›Paper›PMID 34086818›Full record

ArticlePloS one2021

Cardiac index predicts long-term outcomes in patients with heart failure.

Tatsuro Ibe, Hiroshi Wada, Kenichi Sakakura, Yusuke Ugata, Hisataka Maki, Kei Yamamoto, Masaru Seguchi, Yousuke Taniguchi, Hiroyuki Jinnouchi, Hideo Fujita

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
1.3field-weighted citation impact, top 19% 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

8 citing papers in PubMed, 11 citations in OpenAlex.

  1. Trial
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  7. Fibroblast growth factor 23 as a biomarker of right ventricular dysfunction in pulmonary hypertension.Clinical research in cardiology : official journal of the German Cardiac Society · 2023
    Observational
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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

10 authors at 1 institution in 1 country.

Tatsuro IbeDivision of Cardiovascular Medicine, Saitama Medical Center, Jichi Medical University, Saitama, Japan.ORCID 0000-0002-8162-4004
Hiroshi WadaDivision of Cardiovascular Medicine, Saitama Medical Center, Jichi Medical University, Saitama, Japan.
Kenichi SakakuraDivision of Cardiovascular Medicine, Saitama Medical Center, Jichi Medical University, Saitama, Japan.
Yusuke UgataDivision of Cardiovascular Medicine, Saitama Medical Center, Jichi Medical University, Saitama, Japan.
Hisataka MakiDivision of Cardiovascular Medicine, Saitama Medical Center, Jichi Medical University, Saitama, Japan.
Kei YamamotoDivision of Cardiovascular Medicine, Saitama Medical Center, Jichi Medical University, Saitama, Japan.
Masaru SeguchiDivision of Cardiovascular Medicine, Saitama Medical Center, Jichi Medical University, Saitama, Japan.
Yousuke TaniguchiDivision of Cardiovascular Medicine, Saitama Medical Center, Jichi Medical University, Saitama, Japan.
Hiroyuki JinnouchiDivision of Cardiovascular Medicine, Saitama Medical Center, Jichi Medical University, Saitama, Japan.
Hideo FujitaDivision of Cardiovascular Medicine, Saitama Medical Center, Jichi Medical University, Saitama, Japan.ORCID 0000-0002-4901-3502
Jichi Medical University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe role of cardiac index (CI) and right atrial pressure (RAP) for predicting long-term outcomes of heart failure has not been well established. The aim of this study was to investigate long-term cardiac outcomes in patients with heart failure having various combinations of CI and RAP.

methodsA total of 787 heart failure patients who underwent right-heart catheterization were retrospectively categorized into the following four groups: Preserved CI (≥2.5 L/min/m2) and Low RAP (<8 mmHg) (PRE-CI/L-RAP; n = 285); Preserved CI (≥2.5 L/min/m2) and High RAP (≥8 mmHg) (PRE-CI/H-RAP; n = 242); Reduced CI (<2.5 L/min/m2) and Low RAP (<8 mmHg) (RED-CI/L-RAP; n = 123); and Reduced CI (<2.5 L/min/m2) and High RAP (≥8 mmHg) (RED-CI/H-RAP; n = 137). Survival analysis was applied to investigate which groups were associated with major adverse cardiovascular events (MACE).

resultsThe RED-CI/L-RAP and RED-CI/H-RAP groups were significantly associated with MACE as compared with the PRE-CI/L-RAP and PRE-CI/H-RAP groups after adjustment for confounding factors (RED-CI/L-RAP vs. PRE-CI/L-RAP: HR 2.11 [95% CI 1.33-3.37], p = 0.002; RED-CI/H-RAP vs. PRE-CI/L-RAP: HR 2.18 [95% CI 1.37-3.49], p = 0.001; RED-CI/L-RAP vs. PRE-CI/H-RAP: HR 1.86 [95% CI 1.16-3.00], p = 0.01; RED-CI/H-RAP vs. PRE-CI/H-RAP: HR 1.92 [95% CI 1.26-2.92], p = 0.002), whereas the difference between the RED-CI/H-RAP and RED-CI/L-RAP groups was not significant (HR 1.03 [95% CI 0.64-1.66], p = 0.89).

conclusionsThe hemodynamic severity categorized by CI and RAP levels provided clear risk stratification in patients with symptomatic heart failure. Low CI was an independent predictor of long-term cardiac outcomes.

Indexed as

Heart FailureAgedAtrial PressureCardiac CatheterizationFemaleHumansMaleMiddle AgedPrognosisRetrospective Studies

Identifiers

PMID34086818
PMCPMC8177638
OpenAlexW3165865546

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.