Evidence map›Paper›PMID 40029146›Full record

Observational studyEchocardiography (Mount Kisco, N.Y.)2025

Myocardial Dysfunction and Risk of Long COVID in Patients Recovered From Mild and Moderate COVID-19.

Binyu Zhou, Yiran Zhang, Shuang Han, Jiqing Zhang, Lin Song, Haiyan Wang

Registry-linked trialAbstract readObservational Study
In one paragraph

Observational study in Echocardiography (Mount Kisco, N.Y.), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT06170307 (Assessment of Left Atrial Function of COVID-19-recovered Patients During the Surge of Omicron Variants by Two-dimensional Speckle Tracking Echocardiography), which is not on this map. Cited by 1 paper, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
1citing 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.

NCT06170307 completednot on this map

Assessment of Left Atrial Function of COVID-19-recovered Patients During the Surge of Omicron Variants by Two-dimensional Speckle Tracking Echocardiography

TypeobservationalSponsorHaiyan WangRan2023 to 2024Enrolled150ConditionsCOVID-19 PandemicArmstwo-dimensional speckle tracking echocardiography
3 · Its place in the literature

Who cites it

1 citing paper in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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

6 authors.

Binyu ZhouDepartment of Medical Ultrasound, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, China.ORCID 0009-0000-3833-5090
Yiran ZhangDepartment of Medical Ultrasound, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, China.
Shuang HanDepartment of Medical Ultrasound, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, China.
Jiqing ZhangDepartment of Medical Ultrasound, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, China.
Lin SongDepartment of Medical Ultrasound, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, China.
Haiyan WangDepartment of Medical Ultrasound, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeNumerous recovered COVID-19 patients exhibit persistent cardiovascular symptoms. However, the degree of myocardial dysfunction and its associated risk factors remain unclear. This study aims to evaluate myocardial dysfunction in recovered patients and pinpoint predictors of persistent cardiovascular symptoms.

methodsWe reviewed the echocardiograms of patients who recovered from mild or moderate COVID-19 and presented with cardiovascular symptoms during the Omicron surge. Myocardial strain was analyzed in 546 patients before and after infection, and in 351 prepandemic healthy controls. Clinical follow-up at 12 months post-infection was used to evaluated symptom persistence, and multivariable logistic regression was used to identify independent predictors.

resultsBaseline characteristics showed no significant differences between patients and controls (all p > 0.05). Although the left ventricle global longitudinal strain (LVGLS) remained stable post-infection, significant reductions emerged in regional left ventricle longitudinal strains (LVLS) and all left atrial strains (LAS) (all p < 0.05). Persistent cardiovascular symptoms affected 16.5% (90/546) of patients at 1-year follow-up. Multivariate analysis showed that only LA conduit strain (OR = 0.919, 95% CI: 0.857, 0.985, p = 0.017) and basal inferoseptal LVLS (OR = 0.883, 95% CI: 0.792, 0.986, p = 0.026) correlated with persisting cardiovascular symptoms.

conclusionOur findings demonstrate that subclinical but persistent COVID-19-associated myocardial dysfunction is characterized by regional LVLS impairment and LAS reduction. The identified strain parameters (LAScd and basal inferoseptal LVLS) serve as novel imaging markers for stratifying patients at risk of persistent cardiovascular symptoms. These results advocate for targeted echocardiographic surveillance and early intervention strategies in post-COVID care pathways.

trial registrationClinicalTrials.gov identifier: NCT06170307.

Indexed as

COVID-19EchocardiographyHeart VentriclesPost-Acute COVID-19 SyndromeVentricular Dysfunction, LeftAgedFemaleHumansMaleMiddle AgedRetrospective StudiesRisk FactorsSeverity of Illness Indexechocardiographyleft atrial strainlong COVIDomicrontwo‐dimensional speckle tracking imaging

Identifiers

PMID40029146
PMCPMC11875044

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LicenceCC BY-NC-ND
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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.