Evidence map›Paper›PMID 41343029›Full record

ArticleJournal of echocardiography2026

Echocardiographic Estimation of right ventricular stroke work index based on pulmonary regurgitant velocity in heart failure with reduced ejection fraction.

Yuta Tateishi, Michito Murayama, Sanae Kaga, Kie Yamazaki, Fuka Ando, Mana Goto, Yusuke Yanagi, Shinobu Yokoyama, Hisao Nishino, Makoto Kambayashi and 7 more

Abstract read
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In one paragraph

Article in Journal of echocardiography, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

17 authors.

Yuta Tateishi *Graduate School of Health Sciences, Hokkaido University, N12, W5, Kita-ku, Sapporo, 060- 0812, Japan.
Michito Murayama *Department of Medical Laboratory Science, Faculty of Health Sciences, Hokkaido University, Sapporo, Japan. m.michito6080@gmail.com.ORCID http://orcid.org/0000-0002-9249-9093
Sanae KagaDepartment of Medical Laboratory Science, Faculty of Health Sciences, Hokkaido University, Sapporo, Japan. sanae@med.hokudai.ac.jp.
Kie YamazakiGraduate School of Health Sciences, Hokkaido University, N12, W5, Kita-ku, Sapporo, 060- 0812, Japan.
Fuka AndoDiagnostic center for Sonography, Hokkaido University Hospital, N14, W5, Kita-ku, Sapporo, 060-8648, Japan.
Mana GotoDiagnostic center for Sonography, Hokkaido University Hospital, N14, W5, Kita-ku, Sapporo, 060-8648, Japan.
Yusuke YanagiDiagnostic center for Sonography, Hokkaido University Hospital, N14, W5, Kita-ku, Sapporo, 060-8648, Japan.
Shinobu YokoyamaDiagnostic center for Sonography, Hokkaido University Hospital, N14, W5, Kita-ku, Sapporo, 060-8648, Japan.
Hisao NishinoDiagnostic center for Sonography, Hokkaido University Hospital, N14, W5, Kita-ku, Sapporo, 060-8648, Japan.
Makoto KambayashiDepartment of Medical Cardiovascular Medicine, Faculty of Medicine, Graduate School of Medicine, Hokkaido University, N15, W7, Kita-ku, Sapporo, 060-8638, Japan.
Yui ShimonoDepartment of Medical Cardiovascular Medicine, Faculty of Medicine, Graduate School of Medicine, Hokkaido University, N15, W7, Kita-ku, Sapporo, 060-8638, Japan.
Kosuke NakamuraDepartment of Medical Cardiovascular Medicine, Faculty of Medicine, Graduate School of Medicine, Hokkaido University, N15, W7, Kita-ku, Sapporo, 060-8638, Japan.
Yoji TamakiDepartment of Medical Cardiovascular Medicine, Faculty of Medicine, Graduate School of Medicine, Hokkaido University, N15, W7, Kita-ku, Sapporo, 060-8638, Japan.
Suguru IshizakaDepartment of Medical Cardiovascular Medicine, Faculty of Medicine, Graduate School of Medicine, Hokkaido University, N15, W7, Kita-ku, Sapporo, 060-8638, Japan.
Hiroyuki IwanoDiagnostic center for Sonography, Hokkaido University Hospital, N14, W5, Kita-ku, Sapporo, 060-8648, Japan.
Toshiyuki NagaiDepartment of Medical Cardiovascular Medicine, Faculty of Medicine, Graduate School of Medicine, Hokkaido University, N15, W7, Kita-ku, Sapporo, 060-8638, Japan.
Toshihisa AnzaiDepartment of Medical Cardiovascular Medicine, Faculty of Medicine, Graduate School of Medicine, Hokkaido University, N15, W7, Kita-ku, Sapporo, 060-8638, Japan.

Funding

Japan Society for the Promotion of Science 22K20497Japan Society for the Promotion of Science 23K17220Japan Society for the Promotion of Science 25K15927
6 · The paper itself

Abstract

backgroundRight ventricular (RV) dysfunction is a key determinant of mortality in heart failure with reduced left ventricular ejection fraction (HFrEF). RV stroke work index (RVSWI) is an established invasive parameter of RV function; however, echocardiographic methods for estimating RVSWI have not yet been fully established. We hypothesized that the pulmonary regurgitant (PR) velocity waveform-derived early-diastolic pulmonary artery-RV pressure gradient (PRPG) would allow an accurate estimation of RVSWI because of its fidelity to the original formula. This study aimed to investigate whether non-invasive estimation of RVSWI is feasible in patients with HFrEF.

methodsIn this retrospective study, 120 adult patients with HFrEF who underwent right heart catheterization within 24 h of echocardiography were included. RVSWI was calculated as (mean pulmonary artery pressure - mean right atrial pressure) × stroke volume index (SVI). Based on the continuous-wave Doppler velocity measurements of PR, echocardiographic estimation of RVSWI was calculated as PRPG × pulsed-wave Doppler-derived SVI (RVSWI

resultsThe RVSWI

conclusionsRVSWI

Indexed as

Echocardiography, DopplerHeart FailurePulmonary Valve InsufficiencyStroke VolumeVentricular Dysfunction, RightAgedCardiac CatheterizationFemaleHumansMaleMiddle AgedRetrospective StudiesROC CurveVentricular Function, RightEchocardiography・Right ventricular stroke work index・Pulmonary regurgitation・Heart failure with reduced left ventricular ejection fraction・Right ventricular function・Tricuspid regurgitation

Identifiers

PMID41343029

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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.