2D: two-dimensional; E and A: early and late diastolic transmitral flow velocity; LA: left atrium; LV: left ventricular.
Declarations
Author contributions
AN: Conceptualization, Investigation, Visualization, Formal analysis, Writing—original draft, Writing—review & editing. NA: Validation, Writing—review & editing. ZB: Supervision, Resources. All authors read and approved the submitted version.
Conflicts of interest
Attila Nemes, who is the Editorial Board Member and Guest Editor of Exploration of Medicine, had no involvement in the decision-making or the review process of this manuscript. The other authors declare no conflicts of interest.
Ethical approval
The study was approved by the Institutional and Regional Biomedical Research Committee of the University of Szeged (number: 71/2011, latest approval 17th March 2025). The study conformed to the ethical guidelines of the Declaration of Helsinki.
Consent to participate
All subjects gave their informed consent.
Consent to publication
Not applicable.
Availability of data and materials
The datasets for this manuscript are not publicly available due to local restrictions. Requests for accessing the datasets should be directed to the corresponding author.
Open Exploration maintains a neutral stance on jurisdictional claims in published institutional affiliations and maps. All opinions expressed in this article are the personal views of the author(s) and do not represent the stance of the editorial team or the publisher.
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