Evidence map›Paper›PMID 33875748›Full record

ArticleScientific reports2021

Atrial fibrillation and left atrial size and function: a Mendelian randomization study.

Yordi J van de Vegte, Joylene E Siland, Michiel Rienstra, Pim van der Harst

Registry-linked trialOpen access · goldAbstract read
In one paragraph

Article in Scientific reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT06417112 (Can Left Atrial Strain Measurements, and Correlating Changes in Left Atrium Area and Volume Size, be Used as an Early Predictor of Atrial Fibrillation?), which is not on this map. Cited by 29 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed, 2 pooled it
7.8field-weighted citation impact, top 2% 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.

NCT06417112 completednot on this mapstarted 2023, after this paper: background citation

Can Left Atrial Strain Measurements, and Correlating Changes in Left Atrium Area and Volume Size, be Used as an Early Predictor of Atrial Fibrillation?

TypeobservationalSponsorHywel Dda Health BoardRan2023 to 2024Enrolled72ConditionsAtrial Fibrillation, HypertensionArmsTransthoracic Echocardiogram
3 · Its place in the literature

Who cites it

29 citing papers in PubMed, 2 syntheses or guidelines pooled it, 57 citations in OpenAlex.

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  6. Left atrial global strain supports left atrial end-diastolic volume as a measure of left atrial function.American heart journal plus : cardiology research and practice · 2025
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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 2 institutions in 1 country.

Yordi J van de Vegte *Department of Cardiology, University Medical Center Groningen, University of Groningen, Hanzeplein 1, P.O. Box 30.001, 9700 RB, Groningen, The Netherlands.
Joylene E Siland *Department of Cardiology, University Medical Center Groningen, University of Groningen, Hanzeplein 1, P.O. Box 30.001, 9700 RB, Groningen, The Netherlands.
Michiel RienstraDepartment of Cardiology, University Medical Center Groningen, University of Groningen, Hanzeplein 1, P.O. Box 30.001, 9700 RB, Groningen, The Netherlands.
Pim van der HarstDepartment of Cardiology, University Medical Center Groningen, University of Groningen, Hanzeplein 1, P.O. Box 30.001, 9700 RB, Groningen, The Netherlands. p.van.der.harst@umcg.nl.
University of Groningen · NLUniversity Medical Center Groningen · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Atrial fibrillation (AF) patients have enlarged left atria (LA), but prior studies suggested enlarged atria as both cause and consequence of AF. The aim of this study is to investigate the causal association between AF and LA size and function. In the UK Biobank, all individuals with contoured cardiovascular magnetic resonance data were selected. LA maximal volume (LA max), LA minimal volume (LA min), LA stroke volume and LA ejection fraction were measured and indexed to body surface area (BSA). Two-sample Mendelian randomization analyses were performed using 84 of the known genetic variants associated with AF to assess the association with all LA size and function in individuals without prevalent AF. A total of 4274 individuals (mean age 62.0 ± 7.5 years, 53.2% women) were included. Mendelian randomization analyses estimated a causal effect between genetically determined AF and BSA-indexed LA max, LA min, and LA ejection fraction, but not between AF and LA stroke volume. Leave-one-out analyses showed that the causal associations were attenuated after exclusion of rs67249485, located near PITX2 gene. Our results suggest that AF causally increases LA size and decreases LA ejection fraction. The AF risk allele of rs67249485, located near the PITX2 gene, contributes strongly to these associations.

Indexed as

Atrial FibrillationHeart AtriaAgedAllelesAtrial Function, LeftFemaleHomeobox Protein PITX2Homeodomain ProteinsHumansMaleMendelian Randomization AnalysisMiddle AgedRisk FactorsTranscription FactorsHomeobox Protein PITX2Homeodomain ProteinsTranscription Factors

Identifiers

PMID33875748
PMCPMC8055882
OpenAlexW3152840299

What OpenQuestion holds

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Registered trials

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.