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. 2022 Jul 27;9:955237. doi: 10.3389/fcvm.2022.955237

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Copyright © 2022 Xu, Zhao, Xing, Wu and Zhang.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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The detailed information of the screening process. All of the relevant studies of COVID-19 and heart were primarily recorded by the initial retrieval in the web of science. Only articles and reviews were selected for the second analysis. We eliminated invalid documents of which the themes were not related to COVID-19 and heart. Finally, a total of 2025 records were used as the dataset in the final study.