Evidence map›Paper›PMID 27716961›Full record

ArticleClinical cardiology2016

Left ventricular stiffness estimated by diastolic wall strain is associated with paroxysmal atrial fibrillation in structurally normal hearts.

Shunsuke Uetake, Mitsunori Maruyama, Teppei Yamamoto, Katsuhito Kato, Yasushi Miyauchi, Yoshihiko Seino, Wataru Shimizu

Open access · bronzeAbstract read
In one paragraph

Article in Clinical cardiology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
0.9field-weighted citation impact, top 21% 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

5 citing papers in PubMed, 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

7 authors at 2 institutions in 1 country.

Shunsuke UetakeDepartment of Cardiovascular Medicine, Nippon Medical School Chiba Hokusoh Hospital, Chiba, Japan.
Mitsunori MaruyamaDepartment of Cardiovascular Medicine, Nippon Medical School Chiba Hokusoh Hospital, Chiba, Japan.
Teppei YamamotoDepartment of Cardiovascular Medicine, Nippon Medical School, Tokyo, Japan.
Katsuhito KatoDepartment of Cardiovascular Medicine, Nippon Medical School Chiba Hokusoh Hospital, Chiba, Japan.
Yasushi MiyauchiDepartment of Cardiovascular Medicine, Nippon Medical School Chiba Hokusoh Hospital, Chiba, Japan.
Yoshihiko SeinoDepartment of Cardiovascular Medicine, Nippon Medical School Chiba Hokusoh Hospital, Chiba, Japan.
Wataru ShimizuDepartment of Cardiovascular Medicine, Nippon Medical School, Tokyo, Japan.
Chiba Hokusou Hospital · JPNippon Medical School · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundLeft ventricular (LV) diastolic dysfunction depends on an impaired relaxation and stiffness. Abnormal LV relaxation contributes to the development of atrial fibrillation (AF), but the role of LV stiffness in AF remains unclear. HYPOTHESIS: Diastolic wall strain (DWS), a load-independent, noninvasive direct measure of LV stiffness, correlates with prevalent AF.

methodsThis study included 328 consecutive subjects with structurally normal hearts: 164 paroxysmal AF patients and 164 age- and sex-matched (1:1) controls. We calculated the DWS from the M-mode echocardiographic measurements of the LV posterior wall thickness at end-systole and end-diastole during sinus rhythm.

resultsThe DWS was lower in the AF patients (0.35 ± 0.07) than in the controls (0.41 ± 0.06; P < 0.001). After adjusting for the risk factors of AF using a conditional logistic regression analysis, a history of hypertension, plasma brain-type natriuretic peptide level, and DWS were independently associated with AF prevalence, whereas body mass index, LV mass index, left atrial volume, and any conventional indices of the diastolic function were not. A low DWS (<0.380) was the strongest indicator of AF (odds ratio: 6.22, 95% confidence interval: 3.08-14.2, P < 0.001).

conclusionsIncreased LV stiffness estimated by DWS was a strong determinant of the prevalence of AF. LV stiffness may play a role in the pathogenesis of paroxysmal AF in structurally normal hearts.

Indexed as

AgedAtrial FibrillationDiastoleEchocardiographyElectrocardiography, AmbulatoryFemaleFollow-Up StudiesHeart VentriclesHumansMaleRetrospective StudiesTachycardia, ParoxysmalVentricular Dysfunction, LeftAtrial fibrillationDiastolic dysfunctionDiastolic wall strainStiffness

Identifiers

PMID27716961
PMCPMC6490820
OpenAlexW2531198532

What OpenQuestion holds

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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.