ArticleBMJ open2022
Incidence, risk factors and prognostic effect of imaging left ventricular diastolic dysfunction in patients with COVID-19: protocol for a systematic review.
Article in BMJ open, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers, 1 of them a synthesis that pooled it.
What it found
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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.
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.
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Who cites it
4 citing papers in PubMed, 1 synthesis or guideline pooled it, 5 citations in OpenAlex.
- A deeper look at long-term effects of COVID-19 on myocardial function in survivors with no prior heart diseases: a GRADE approach systematic review and meta-analysis.Frontiers in cardiovascular medicine · 2024Pooled it
- Subclinical patterns of cardiac involvement by transthoracic echocardiography in individuals with mild initial COVID-19.Scientific reports · 2025Article
- Left atrial strain is associated with distinct inflammatory and immune profile in patients with COVID-19 pneumonia.The ultrasound journal · 2023Article
- The Impact of Metabolic Syndrome and Obesity on the Evolution of Diastolic Dysfunction in Apparently Healthy Patients Suffering from Post-COVID-19 Syndrome.Biomedicines · 2022Article
Corrections and comments
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Authors and funding
4 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
introductionRecent reports linked acute COVID-19 infection in critical patients to cardiac structure and function abnormalities. The left ventricular (LV) diastolic dysfunction could result in obvious adverse prognostic impacts. The aim of this meta-analysis is to summarise the incidence, risk factors and the prognostic effect of imaging LV diastolic dysfunction in adult patients with COVID-19.
methodsDatabases to be used for the pertinent literature are PubMed, EMBase, ISI Knowledge via Web of Science, and preprint databases (MedRxiv and BioRxiv) (until May 2023) to identify all cohort studies in adult patients with COVID-19. The primary outcome will be the incidence of LV diastolic dysfunction assessed by echocardiography or cardiac MRI. Secondary outcomes will include the risk factors for LV diastolic dysfunction and the association with all-cause mortality during hospitalisation. Additional outcomes will be septal or lateral é, average E/é, E/A, peak tricuspid regurgitation velocity, left atrial volume index and LV wall thickness. Univariable or multivariable meta-regression and subgroup analyses will be conducted for related risk factors and the association of LV diastolic dysfunction with all-cause mortality. Sensitivity analyses will be used to assess the robustness of our results by removing each included study at one time to obtain and evaluate the remaining overall estimates of LV diastolic dysfunction incidence and related risk factors, association with all-cause mortality and other LV diastolic dysfunction parameters. ETHICS AND DISSEMINATION: There was no need for ethics approval for the systematic review protocol according to the Institutional Review Board/Independent Ethics Committee of Fuwai Hospital. This meta-analysis will be disseminated through a peer-reviewed journal for publication. PROSPERO REGISTRATION NUMBER: CRD42021256666; URL: https://www.crd.york.ac.uk/prospero/.
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Registered trials
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