Evidence map›Paper›PMID 31813085›Full record

ArticleJournal of echocardiography2020

Significance of left atrial overload by electrocardiogram in the assessment of left ventricular diastolic dysfunction.

Yoshiyuki Sumita, Satoshi Nakatani, Ikuko Murakami, Mina Taniguchi

Abstract read
PubMed Publisher
In one paragraph

Article in Journal of echocardiography, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed, 1 pooled it
1.0field-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

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

  1. Pooled it
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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

4 authors at 3 institutions in 1 country.

Yoshiyuki SumitaDepartment of Clinical Laboratory, National Hospital Organization Utano Hospital, 8, Narutaki ondoyamacho, Kyoto Ukyo-ku, Kyoto, 616-8255, Japan. sumita.yoshiyuki.fz@mail.hosp.go.jp.ORCID 0000-0003-1071-4691
Satoshi NakataniDivision of Functional Diagnostics, Department of Health Sciences, Osaka University Graduate School of Medicine, 1-7, Yamadaoka, Suita, Osaka, 565-0871, Japan.
Ikuko MurakamiDepartment of Clinical Laboratory, National Hospital Organization Kyoto Medical Center, 1-1, Fukakusa mukaihatacho, Kyoto Fushimi-ku, Kyoto, 612-8555, Japan.
Mina TaniguchiDepartment of Clinical Laboratory, National Hospital Organization Kyoto Medical Center, 1-1, Fukakusa mukaihatacho, Kyoto Fushimi-ku, Kyoto, 612-8555, Japan.
Kyoto Medical Center · JPNational Hospital Organization · JPThe University of Osaka · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAlthough assessment of left ventricular (LV) diastolic function (DF) using echocardiography is important, it is not always feasible in the clinical practice. On the other hand, left atrial (LA) overload shown by electrocardiogram (ECG) indicates LA pressure rise and LA dilatation. The purpose of this study is to examine whether LA overload by ECG can be used as an aid for evaluation of LVDF.

methodsThere were 117 subjects who underwent echocardiography and ECG on the same day. The duration of P-wave (P-duration) in lead II, the amplitude and duration of P-wave negative phase in lead V1 were measured by ECG, and terminal force (PTFV1) was calculated. We analyzed the relationships between LVDF grades and LA overload signs.

resultsP-duration showed a good correlation with LA volume index (LAVi) (r = 0.673, P < 0.0001) and PTFV1 showed reasonable correlations with both LAVi and average E/e' (both, r = 0.575, P < 0.0001). Both P-duration and PTFV1 showed significant differences among the LVDF classes (P < 0.0001). Among the ECG indices, P-duration [Formula: see text] 110 ms was the most powerful to judge the presence of LV diastolic dysfunction with 86% of sensitivity and specificity.

conclusionsP-duration ≥ 110 ms is useful to suggest the presence of LV diastolic dysfunction. Conventional ECG criteria (P-duration ≥ 120 ms and PTFV1 [Formula: see text] 0.04 mm·s) are highly specific and suggest the presence of LV diastolic dysfunction with LA pressure rise. Echocardiography and ECG should be used in a complementary way when LVDF grades are indeterminate.

Indexed as

ElectrocardiographyAdultAtrial Function, LeftDiastoleEchocardiography, DopplerFemaleHeart AtriaHumansMaleMiddle AgedVentricular Dysfunction, LeftEchocardiographyElectrocardiogramLeft atrial overloadLeft ventricular diastolic functionP-duration

Identifiers

PMID31813085
OpenAlexW2991737449

What OpenQuestion holds

Textmetadata
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.