Evidence map›Paper›PMID 42259582›Full record

ArticleOpen heart2026

Complementary cardiac functional assessment using systolic time intervals and bioelectrical impedance analysis.

Tomoaki Nishikawa, Akinori Higaki, Keisho Kurokawa, Arisa Abe, Rikako Horie, Ryo Miyabe, Yasuhisa Nakao, Tomoki Fujisawa, Yusuke Akazawa, Toru Miyoshi and 7 more

Abstract read
In one paragraph

Article in Open heart, 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.

Tomoaki NishikawaDepartment of Cardiology, Pulmonology, Hypertension & Nephrology, Ehime University Graduate School of Medicine, Toon, Japan.
Akinori HigakiDepartment of Cardiology, Pulmonology, Hypertension & Nephrology, Ehime University Graduate School of Medicine, Toon, Japan keroplant83@gmail.com.ORCID http://orcid.org/0000-0002-0827-874X
Keisho KurokawaDepartment of Cardiology, Pulmonology, Hypertension & Nephrology, Ehime University Graduate School of Medicine, Toon, Japan.
Arisa AbeDepartment of Cardiology, Pulmonology, Hypertension & Nephrology, Ehime University Graduate School of Medicine, Toon, Japan.
Rikako HorieDepartment of Cardiology, Pulmonology, Hypertension & Nephrology, Ehime University Graduate School of Medicine, Toon, Japan.
Ryo MiyabeDepartment of Cardiology, Pulmonology, Hypertension & Nephrology, Ehime University Graduate School of Medicine, Toon, Japan.
Yasuhisa NakaoDepartment of Cardiology, Pulmonology, Hypertension & Nephrology, Ehime University Graduate School of Medicine, Toon, Japan.
Tomoki FujisawaDepartment of Cardiology, Pulmonology, Hypertension & Nephrology, Ehime University Graduate School of Medicine, Toon, Japan.
Yusuke AkazawaDepartment of Cardiology, Pulmonology, Hypertension & Nephrology, Ehime University Graduate School of Medicine, Toon, Japan.
Toru MiyoshiDepartment of Cardiology, Pulmonology, Hypertension & Nephrology, Ehime University Graduate School of Medicine, Toon, Japan.
Hiroshi KawakamiDepartment of Cardiology, Pulmonology, Hypertension & Nephrology, Ehime University Graduate School of Medicine, Toon, Japan.
Haruhiko HigashiDepartment of Cardiology, Pulmonology, Hypertension & Nephrology, Ehime University Graduate School of Medicine, Toon, Japan.
Shunsuke TamakiDepartment of Cardiology, Pulmonology, Hypertension & Nephrology, Ehime University Graduate School of Medicine, Toon, Japan.
Kazuhisa NishimuraDepartment of Cardiology, Pulmonology, Hypertension & Nephrology, Ehime University Graduate School of Medicine, Toon, Japan.
Katsuji InoueDepartment of Cardiology, Pulmonology, Hypertension & Nephrology, Ehime University Graduate School of Medicine, Toon, Japan.
Shuntaro IkedaDepartment of Cardiology, Pulmonology, Hypertension & Nephrology, Ehime University Graduate School of Medicine, Toon, Japan.
Osamu YamaguchiDepartment of Cardiology, Pulmonology, Hypertension & Nephrology, Ehime University Graduate School of Medicine, Toon, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe Forrester classification remains a cornerstone for assessing haemodynamic status in heart failure, yet its clinical application is restricted by the invasiveness of right heart catheterisation. This study aimed to develop a novel, non-invasive and reproducible alternative by integrating bioelectrical impedance analysis (BIA) and pulse wave analysis (PWA).

methodWe conducted a retrospective study of consecutive patients admitted to our cardiology department between January 2020 and December 2022 who underwent PWA within 1 month of BIA. Systolic time intervals (STIs) were calculated as the ratio of pre-ejection period to left ventricular ejection time using PWA. Patients were classified into four virtual Forrester profiles-

resultsAmong 558 patients with available STI and BIA data, 161, 209, 90 and 98 were classified as

conclusionThe proposed virtual Forrester profiling integrating BIA and PWA provides a practical, quantitative and reproducible framework for non-invasive haemodynamic assessment.

Indexed as

Electric ImpedanceHeart FailurePulse Wave AnalysisStroke VolumeVentricular Function, LeftAgedFemaleHumansMaleMiddle AgedPredictive Value of TestsPrognosisReproducibility of ResultsRetrospective StudiesSystoleTime FactorsAtherosclerosisEchocardiographyHEART FAILURERisk Factors

Identifiers

PMID42259582
PMCPMC13250219

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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.