Evidence map›Paper›PMID 41730559›Full record

ArticleBMJ open2026

Left atrial strain and all-cause mortality in patients with heart failure with reduced ejection fraction: a retrospective cohort study.

Burcu Tas Özbek, Daniel Modin, Morten Sengeløv, Peter Godsk Jørgensen, Niels Eske Bruun, Thomas Fritz-Hansen, Tor Biering-Sorensen

Abstract read
In one paragraph

Article in BMJ open, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed, 1 pooled it
–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

3 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. Article
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.

Burcu Tas ÖzbekDepartment of Cardiology, Rigshospitalet, Copenhagen, Capital Region of Denmark, Denmark Burcu_tas@hotmail.com.ORCID http://orcid.org/0000-0002-7279-970X
Daniel ModinGentofte Hospital, Hellerup, Denmark.
Morten SengeløvGen, Gentofte Hospital, Hellerup, Denmark.ORCID http://orcid.org/0000-0002-2139-8068
Peter Godsk JørgensenDepartment of Cardiology, Herlev Gentofte University Hospital, Hellerup, Denmark.
Niels Eske BruunDepartment of Cardiology, Zealand University Hospital Roskilde, Roskilde, Sjaelland, Denmark.
Thomas Fritz-HansenDepartment of Cardiology, Herlev Gentofte University Hospital, Hellerup, Denmark.
Tor Biering-SorensenDepartment of Cardiology, Gentofte Hospital, University of Copenhagen, Hellerup, Denmark.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe prognostic value of left atrial (LA) strain in patients with heart failure with reduced ejection fraction (HFrEF) has not been fully elucidated. Therefore, this study investigated the prognostic value of LA strain in HFrEF patients in relation to all-cause mortality.

methodsA total of 822 echocardiograms from HFrEF patients admitted to a heart failure clinic were analysed offline. To calculate left atrial reservoir strain (LA RS) and left atrial contractile strain (LA CS), LA two-dimensional speckle tracking was performed in the 4-chamber, 2-chamber and 3-chamber view. The end-point was all-cause mortality. The association between LA strain parameters and outcome was examined using Cox regression.

resultsThe median follow-up time was 40 months and follow-up was 100% complete. During follow-up, a total of 137 patients (16.7%) died of all causes. In a final multivariable model adjusted for clinical and echocardiographic parameters including global longitudinal strain, LA RS and LA CS were significantly associated with all-cause death during follow-up (LA RS, HR 0.96, 95% CI 0.92 to 0.99, p=0.014, pr. 1% increase) (LA CS, HR 0.95, 95% CI 0.92 to 0.98, p=0.002, pr. 1% increase).When added to the final multivariable model, both LA RS and LA CS contributed with incremental prognostic value as determined by C-statistic (LA RS: C-stat difference 0.007, 95% CI 0.000 to 0.020, p=0.050) (LA CS: C-stat difference 0.009, 95% CI 0.000 to 0.023, p=0.030).

conclusionIn HFrEF patients, LA RS and LA CS were associated with all-cause mortality and contributed incremental prognostic value in addition to established prognostic measures.

Indexed as

Atrial Function, LeftHeart AtriaHeart FailureStroke VolumeAgedCause of DeathEchocardiographyFemaleGlobal Longitudinal StrainHumansMaleMiddle AgedPrognosisProportional Hazards ModelsRetrospective StudiesEchocardiographyEpidemiologyHeart failureRisk Factors

Identifiers

PMID41730559
PMCPMC12931534

What Socratic holds

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LicenceCC BY-NC
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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 Socratic graph.