Evidence map›Paper›PMID 34035345›Full record

Observational studyScientific reports2021

Comprehensive assessment of left atrial and ventricular remodeling in paroxysmal atrial fibrillation by the cardiovascular magnetic resonance myocardial extracellular volume fraction and feature tracking strain.

Akimasa Yamada, Naoki Hashimoto, Hidesato Fujito, Takumi Hatta, Yuki Saito, Naoto Otsuka, Yuji Wakamatsu, Masaru Arai, Ryuta Watanabe, Sayaka Kurokawa and 4 more

Open access · goldAbstract readObservational Study
In one paragraph

Observational study in Scientific reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
1.7field-weighted citation impact, top 15% 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

13 citing papers in PubMed, 1 synthesis or guideline pooled it, 15 citations in OpenAlex.

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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

14 authors at 1 institution in 1 country.

Akimasa YamadaDepartment of Cardiovascular Medicine, Nihon University Graduate School, 30-1 Oyaguchi kamimachi, Itabashi, Tokyo, 173-8610, Japan.
Naoki HashimotoDepartment of Cardiovascular Medicine, Nihon University Graduate School, 30-1 Oyaguchi kamimachi, Itabashi, Tokyo, 173-8610, Japan.
Hidesato FujitoDepartment of Cardiovascular Medicine, Nihon University Graduate School, 30-1 Oyaguchi kamimachi, Itabashi, Tokyo, 173-8610, Japan.
Takumi HattaDepartment of Cardiovascular Medicine, Nihon University Graduate School, 30-1 Oyaguchi kamimachi, Itabashi, Tokyo, 173-8610, Japan.
Yuki SaitoDepartment of Cardiovascular Medicine, Nihon University Graduate School, 30-1 Oyaguchi kamimachi, Itabashi, Tokyo, 173-8610, Japan.
Naoto OtsukaDepartment of Cardiovascular Medicine, Nihon University Graduate School, 30-1 Oyaguchi kamimachi, Itabashi, Tokyo, 173-8610, Japan.
Yuji WakamatsuDepartment of Cardiovascular Medicine, Nihon University Graduate School, 30-1 Oyaguchi kamimachi, Itabashi, Tokyo, 173-8610, Japan.
Masaru AraiDepartment of Cardiovascular Medicine, Nihon University Graduate School, 30-1 Oyaguchi kamimachi, Itabashi, Tokyo, 173-8610, Japan.
Ryuta WatanabeDepartment of Cardiovascular Medicine, Nihon University Graduate School, 30-1 Oyaguchi kamimachi, Itabashi, Tokyo, 173-8610, Japan.
Sayaka KurokawaDepartment of Cardiovascular Medicine, Nihon University Graduate School, 30-1 Oyaguchi kamimachi, Itabashi, Tokyo, 173-8610, Japan.
Daisuke KitanoDepartment of Cardiovascular Medicine, Nihon University Graduate School, 30-1 Oyaguchi kamimachi, Itabashi, Tokyo, 173-8610, Japan.
Koichi NagashimaDepartment of Cardiovascular Medicine, Nihon University Graduate School, 30-1 Oyaguchi kamimachi, Itabashi, Tokyo, 173-8610, Japan.
Shunichi YodaDepartment of Cardiovascular Medicine, Nihon University Graduate School, 30-1 Oyaguchi kamimachi, Itabashi, Tokyo, 173-8610, Japan.
Yasuo OkumuraDepartment of Cardiovascular Medicine, Nihon University Graduate School, 30-1 Oyaguchi kamimachi, Itabashi, Tokyo, 173-8610, Japan. okumura.yasuo@nihon-u.ac.jp.
Nihon University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Atrial fibrillation (AF) is a progressive disease that starts with structural or functional changes in the left atrium and left ventricle, and evolves from paroxysmal toward sustained forms. Early detection of structural or functional changes in the left atrium and left ventricle in the paroxysmal stage could be useful for identifying a higher risk of progression to persistent AF and future cardio-cerebrovascular events. The aim of this study was to test the hypothesis that the feature tracking (FT) left atrial (LA) strain and left ventricular (LV) extracellular volume fraction (ECV) derived from cardiovascular magnetic resonance (CMR) could detect early changes in remodeling of the left atrium and ventricle in the paroxysmal AF (PAF) stage. The participants were comprised of 106 PAF patients (age, 66.1 ± 10.7 years; 66% male) who underwent clinical CMR before pulmonary vein isolation and 20 control subjects (age, 68.3 ± 8.6 years; 55% male). The CMR-FT LA strain/phasic function and LV-ECV were compared between the PAF and control groups. The total and passive LA empty fraction (LAEF) and LA strain (corresponding to LA reservoir and conduit function) were decreased in the PAF group as compared to the control group. However, active LAEF (corresponding to the LA booster pump function) did not differ significantly between the PAF group (33.9 ± 10.9%) and control group (37.9 ± 13.3%, p = 0.15), while the active LA strain (corresponding to the LA booster pump function) was significantly decreased in the PAF group (11.4 ± 4.3 vs. 15.2 ± 5.6%, p = 0.002). The LV-ECV was significantly greater in the PAF group (28.7 ± 2.8%) than control group (26.6 ± 2.0%, p = 0.002). In the PAF group, the LV-ECV correlated significantly with the E/e' and LA volume index. Regarding the LA strain, correlations were seen between the LV-ECV and both the reservoir function and conduit function. CMR-FT LA strain in combination with the LV-ECV in a single clinical study offers a potential imaging marker that identifies LA/LV remodeling including subtle LA booster pump dysfunction undetectable by the conventional booster pump LAEF in the PAF stage.

Indexed as

Ventricular RemodelingAgedAtrial FibrillationAtrial Function, LeftFemaleHeart AtriaHumansMagnetic Resonance SpectroscopyMaleMiddle AgedProspective Studies

Identifiers

PMID34035345
PMCPMC8149643
OpenAlexW3132958456

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.