Publication Name	World Journal of Clinical Pediatrics
Manuscript ID	122753
DOI	10.5409/wjcp.122753
Country	Russia

Category	Pediatrics
Manuscript Type	Correspondence
Article Title	Letter to the Editor: Coronavirus disease 2019, multisystem inflammatory syndrome, and children’s hearts: Finding answers with cardiac magnetic resonance imaging
Manuscript Source	Invited Manuscript
All Author List	Liudmila V Bregel, Olesya S Efremova and Mikhail M Kostik
Funding Agency and Grant Number
Corresponding Author	Mikhail M Kostik, Head, MD, PhD, Professor, Department of Hospital Pediatry, Saint Petersburg State Pediatric Medical University, Lytovskaya 2, Saint Petersburg 194100, Sankt-Peterburg, Russia. kost-mikhail@yandex.ru
Key Words	Multisystem inflammatory syndrome in children; Myocarditis; Myocardial dysfunction; Cardiac magnetic resonance imaging; Coronavirus disease 2019
Core Tip	Multisystem inflammatory syndrome in children related to coronavirus disease 2019 (COVID-19), concentrating on cardiovascular complications, including myocardial dysfunction, primarily due to myocarditis. While coronary artery dilation is usually moderate and resolves quickly, myocarditis can be severe but typically improves over time. Cardiovascular abnormalities such as dilated coronary arteries, reduced left ventricular ejection fraction, diastolic dysfunction, myocarditis, and pericardial effusions generally subside within 6 to 9 months. Global longitudinal strain is effective for detecting subtle myocardial damage. Long-term cardiac magnetic resonance imaging reveals persistent myocardial edema or fibrosis for up to a year, with interstitial fibrosis and could be recommended as the primary or follow-up imaging technique for COVID-19 patients.
Citation	Bregel LV, Efremova OS, Kostik MM. Letter to the Editor: Coronavirus disease 2019, multisystem inflammatory syndrome, and children’s hearts: Finding answers with cardiac magnetic resonance imaging. World J Clin Pediatr 2026; In press DOI: https://doi.org/10.5409/wjcp.122753
PDF	122753-in-press.pdf

Received	2026-04-27 08:32
Peer-Review Started	2026-04-27 08:34
First Decision by Editorial Office Director	2026-05-20 11:09
Return for Revision	2026-05-20 11:09
Revised	2026-05-30 19:50
Publication Fee Transferred
Second Decision by Editor	2026-08-07 02:39
Second Decision by Editor-in-Chief
Final Decision by Editorial Office Director	2026-08-10 10:09
Articles in Press	2026-08-10 10:09
Edit the Manuscript by Language Editor
Typeset the Manuscript

ISSN	2219-2808 (online)
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Copyright	©Author(s) (or their employer(s)) 2026. No commercial re-use. See Permissions. Published by Baishideng Publishing Group Inc.
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