<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE article PUBLIC "-//NLM//DTD JATS (Z39.96) Journal Publishing DTD v1.3 20210610//EN" "JATS-journalpublishing1-3.dtd">
<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">emcardio</journal-id><journal-title-group><journal-title xml:lang="ru">Неотложная кардиология и кардиоваскулярные риски</journal-title><trans-title-group xml:lang="en"><trans-title>Emergency Cardiology and Cardiovascular Risks journal</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2616-633X</issn><publisher><publisher-name>Белорусский государственный медицинский университет</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.51922/2616-633X.2026.10.1.2761</article-id><article-id custom-type="elpub" pub-id-type="custom">emcardio-345</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ОРИГИНАЛЬНЫЕ НАУЧНЫЕ ПУБЛИКАЦИИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ORIGINAL SCIENTIFIC PUBLICATIONS</subject></subj-group></article-categories><title-group><article-title>Диагностические маркеры острого миокардита у детей</article-title><trans-title-group xml:lang="en"><trans-title>Diagnostic markers of acute myocarditis in children</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Строгая</surname><given-names>Н. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Strogaya</surname><given-names>N. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Минск</p></bio><bio xml:lang="en"><p>Minsk</p></bio><email xlink:type="simple">nata931994@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Романова</surname><given-names>О. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Romanova</surname><given-names>O. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Минск</p></bio><bio xml:lang="en"><p>Minsk</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Батян</surname><given-names>Г. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Batyan</surname><given-names>G. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Минск</p></bio><bio xml:lang="en"><p>Minsk</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Строгий</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Strogiy</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Минск</p></bio><bio xml:lang="en"><p>Minsk</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Петрученя</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Petruchenya</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Минск</p></bio><bio xml:lang="en"><p>Minsk</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>УО «Белорусский государственный медицинский университет»</institution><country>Беларусь</country></aff><aff xml:lang="en"><institution>Belarusian State Medical University</institution><country>Belarus</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2026</year></pub-date><pub-date pub-type="epub"><day>21</day><month>07</month><year>2026</year></pub-date><volume>10</volume><issue>1</issue><fpage>2761</fpage><lpage>2766</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Строгая Н.В., Романова О.Н., Батян Г.М., Строгий В.В., Петрученя А.В., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Строгая Н.В., Романова О.Н., Батян Г.М., Строгий В.В., Петрученя А.В.</copyright-holder><copyright-holder xml:lang="en">Strogaya N.V., Romanova O.N., Batyan G.M., Strogiy V.V., Petruchenya A.V.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://emcardio.bsmu.by/jour/article/view/345">https://emcardio.bsmu.by/jour/article/view/345</self-uri><abstract><p>Одна из ключевых задач современной кардиологии − своевременная диагностика острого миокардита. Воспаление миокарда способно вызывать серьезные нарушения сердечной деятельности и представляет угрозу для жизни пациента.</p><sec><title>Цель исследования</title><p>Цель исследования: оценить частоту нарушений ритма и проводимости и структурно-функциональных изменений сердца у пациентов с острым миокардитом, госпитализированных в УЗ «Городская детская инфекционная клиническая больница» в 2015–2025 гг.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. Обследовано всего 55 пациентов. Были проанализированы данные электрокардиограммы (RR, частота сердечных сокращений, электрическая ось сердца, PQ, QRS, QTc по Bazett/Sagie, Tpe в V5), эхокардиографии (фракция выброса (ФВ), фракция укорочения (ФУ), конечный диастолический объем (КДО)/конечный систолический объем (КСО) левого желудочка, масса миокарда; Z-score), лабораторные маркеры (тропонин I, миоглобин, предсердный натрийуретический пептид (proBNP)).</p></sec><sec><title>Результаты</title><p>Результаты. Вирусная этиология заболевания подтверждена в 81,8% случаев (энтеровирусы 18,2%, грипп А 10,9%, SARS-CoV-2 7,3%). Нарушения ритма/проводимости выявлены у 70,9% пациентов и представлены: синусовой аритмией у 20% пациентов, экстрасистолами (30,9%; χ² = 16,04, p = 0,001; 58,8% составили желудочковые), АВ-блокадами II–III ст. (27,8%), блокадами ножек пучка Гиса (23,6%; χ² = 13,13, p = 0,003). Увеличение КДО и КСО левого желудочка (27,3% и 38,2% пациентов по Z-score), снижение ФВ у 30,9% пациентов при оценке по Z-score и ФУ менее 28% в 34,5% случаев коррелировали с уровнем proBNP (ρ = 0,38, p = 0,048) и клиникой декомпенсации сердечной деятельности (тахикардия ρ = –0,32, p = 0,04).</p></sec><sec><title>Заключение</title><p>Заключение. Острый миокардит ассоциирован с высокой частотой возникновения аритмий, что выявлено нами в 70,9% случаев. Выявлено, что удлинение интервала QTкорр. (до 486 мс у 20%) и Tpe (23,6%) ассоциировано с увеличением proBNP (ρ = 0,74, p = 0,037 для QTкорр.; ρ = –0,78, p = 0,022 для Tpe) и С-реактивного белка (ρ = 0,45, p = 0,004), инверсией зубца T (38,2%) и тропонином I (20%), указывая на электрическую нестабильность миокарда как маркер ранней перегрузки левого желудочка.</p></sec></abstract><trans-abstract xml:lang="en"><p>One of the key tasks of modern cardiology is the timely diagnosis of acute myocarditis. Myocardial inflammation can cause serious cardiac disorders and poses a threat to the patient’s life.</p><p>The aim of the study was to evaluate the frequency of cardiac arrhythmias, conduction, and structural and functional changes in patients with acute myocarditis hospitalized in the Minsk city children’s infectious diseases hospital in 2015–2025.</p><sec><title>Materials and methods</title><p>Materials and methods. 55 patients were examined. ECG data, Echocardiography data and laboratory markers (troponin I, myoglobin, proBNP) were analyzed.</p></sec><sec><title>Results</title><p>Results. The viral etiology of the disease was confirmed in 81.8% of cases (Enteroviruses 18.2%, Influenza A 10.9%, SARS-CoV-2 7.3%). Rhythm/conduction disorders were detected in 70.9% of patients and were represented by: sinus arrhythmia in 20% of patients, extrasystoles (30.9%; χ2 = 16.04, p = 0.001; 58.8% were ventricular), AV blockages of the II-III stage (27.8%), blockages of the legs of the bundle of His (23.6%; χ2 = 13.13, p = 0.003). An increase in the BWR and CSR of the left ventricle (27.3% and 38.2% of patients according to the Z-score), a decrease in LV in 30.9% of patients with a Z-score and LV score of less than 28% in 34.5% of cases correlated with the level of proBNP (p = 0.38, p = 0.048) and the clinic of decompensation (tachycardia p = –0.32, p = 0.04).</p></sec><sec><title>Conclusion</title><p>Conclusion. Acute myocarditis is associated with a high incidence of arrhythmias, which we identified in 70.9% of cases. It was found that prolongation of the QT interval (up to 486 ms in 20%) and Tpe (23.6%) is associated with an increase in proBNP (p = 0.74, p = 0.037 for QT).; p = –0.78, p = 0.022 for Tpe) and CRP (p = 0.45, p = 0.004), T wave inversion (38.2%) and troponin I (20%), indicating myocardial electrical instability as a marker of early left ventricular overload.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>кардиология</kwd><kwd>нарушения ритма сердца</kwd><kwd>электрокардиография</kwd><kwd>эхокардиография</kwd><kwd>острый миокардит</kwd></kwd-group><kwd-group xml:lang="en"><kwd>cardiology</kwd><kwd>cardiac arrhythmias</kwd><kwd>electrocardiography</kwd><kwd>echocardiography</kwd><kwd>acute myocarditis</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Williams, J.L., Jacobs, H.M., Lee, S. Pediatric Myocarditis // Cardiol Ther. – 2023. – Vol. 12 (2). – P. 243-260. doi: 10.1007/s40119-023-00309-6.</mixed-citation><mixed-citation xml:lang="en">Williams, J.L., Jacobs, H.M., Lee, S. Pediatric Myocarditis // Cardiol Ther. – 2023. – Vol. 12 (2). – P. 243-260. doi: 10.1007/s40119-023-00309-6.</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Ассоциация трансмуральной дисперсии реполяризации желудочков (интервал Tрeak-Tеnd) с компонентами метаболического синдрома (в рамках ЭССЕ-РФ3) // Е.В. Гарбузова, А.А. Кузнецов, А.М. Нестерец [и др.] // Кардиоваскулярная терапия и профилактика. – 2024. - № 23 (8). – С. 4039. doi: 10.15829/1728-8800-2024-4039.</mixed-citation><mixed-citation xml:lang="en">Assotsiatsiia trans mural’noi dispersii repoliarizatsii zheludochkov (interval Tpeak – T end) s komponentami metabolicheskogo sindroma (v ramkakh ESSE-RF3) [Association of transmural dispersion of ventricular repolarization (Tpeak – Tend interval) with components of metabolic syndrome (in the framework of ESSAY-RF3)] // E.V. Garbuzova, A.A. Kuznetsov, A.M. Nesterets [et al.] // Kardiovaskuliarnaya terapiya i profilaktika. – 2024. – № 23 (8). – S. 4039. doi: 10.15829/1728-8800-2024-4039. [in Russian]</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Prolonged Tpeak-to-tend interval on the resting ECG is associated with increased risk of sudden cardiac death // R. Panikkath, K. Reinier, A. Uy-Evanado [et al.] // Circ Arrhythm Electrophysiol. – 2011. – Vol. 4 (4). – P. 441-447. doi: 10.1161/CIRCEP.110.960658.</mixed-citation><mixed-citation xml:lang="en">Prolonged Tpeak-to-tend interval on the resting ECG is associated with increased risk of sudden cardiac death // R. Panikkath, K. Reinier, A. Uy-Evanado [et al.] // Circ Arrhythm Electrophysiol. – 2011. – Vol. 4 (4). – P. 441-447. doi: 10.1161/CIRCEP.110.960658.</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Relationship of Echocardiographic Z Scores Adjusted for Body Surface Area to Age, Sex, Race, and Ethnicity: The Pediatric Heart Network Normal Echocardiogram Database // L. Lopez, S. Colan, M. Stylianou [et al.] // Circ Cardiovasc Imaging. – 2017. – Vol. 10(11). - e006979. doi: 10.1161/CIRCIMAGING.117.006979.</mixed-citation><mixed-citation xml:lang="en">Relationship of Echocardiographic Z Scores Adjusted for Body Surface Area to Age, Sex, Race, and Ethnicity: The Pediatric Heart Network Normal Echocardiogram Database // L. Lopez, S. Colan, M. Stylianou [et al.] // Circ Cardiovasc Imaging. – 2017. – Vol. 10(11). – e006979. doi: 10.1161/CIRCIMAGING.117.006979.</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Pediatric Normal Values and Z Score Equations for Left and Right Ventricular Strain by Two-Dimensional Speckle-Tracking Echocardiography Derived from a Large Cohort of Healthy Children // J. Romanowicz, A.M. Ferraro, J.K. Harrington [et al.] // J Am Soc Echocardiogr. – 2023. – Vol. 36 (3). – P. 310–323. doi: 10.1016/j.echo.2022.11.006.</mixed-citation><mixed-citation xml:lang="en">Pediatric Normal Values and Z Score Equations for Left and Right Ventricular Strain by Two-Dimensional Speckle-Tracking Echocardiography Derived from a Large Cohort of Healthy Children // J. Romanowicz, A.M. Ferraro, J.K. Harrington [et al.] // J Am Soc Echocardiogr. – 2023. – Vol. 36 (3). – P. 310-323. doi: 10.1016/j.echo.2022.11.006.</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Edward, P. Cardiac Arrhythmias. Nadas’ Pediatric Cardiology. 2nd edition // J.F. Keane, J.E. Lock, Fyler D.C. [et al.]. – W.B. Saunders, 2006. – P. 477-524. doi: 10.1016/B978-1-4160-2390-6.50034-9</mixed-citation><mixed-citation xml:lang="en">Edward, P. Cardiac Arrhythmias. Nadas’ Pediatric Cardiology. 2nd edition // J.F. Keane, J.E. Lock, Fyler D.C. [et al.]. - W.B. Saunders, 2006. - P. 477-524. doi: 10.1016/B978-1-4160-2390-6.50034-9</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Freed, M.D. Fetal and Transitional Circulation. Nadas’ Pediatric Cardiology. 2nd edition // J.F. Keane, J.E. Lock, Fyler D.C. [et al.]. – W.B. Saunders, 2006. – P. 75–79. doi: 10.1016/B978-1-4160-2390-6.50011-8</mixed-citation><mixed-citation xml:lang="en">Freed, M.D. Fetal and Transitional Circulation. Nadas’ Pediatric Cardiology. 2nd edition // J.F. Keane, J.E. Lock, Fyler D.C. [et al.]. - W.B. Saunders, 2006. – P. 75-79. doi: 10.1016/B978-1-4160-2390-6.50011-8</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">QTc prolongation is associated with impaired right ventricular function and predicts mortality in pulmonary hypertension // J.D. Rich, T. Thenappan, B. Freed [et al.] // Int J Cardiol. – 2013. – Vol. 10 (3). – P. 669-676. doi: 10.1016/j.ijcard.2012.03.071.</mixed-citation><mixed-citation xml:lang="en">QTc prolongation is associated with impaired right ventricular function and predicts mortality in pulmonary hypertension // J.D. Rich, T. Thenappan, B. Freed [et al.] // Int J Cardiol. – 2013. – Vol. 10 (3). – P. 669-676. doi: 10.1016/j.ijcard.2012.03.071.</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">Electrocardiographic conduction and repolarization markers associated with sudden cardiac death: moving along the electrocardiography waveform // J.T. Reynard, O.M. Oshodi, J.C. Lai [et al.] // Minerva Cardioangiol. – 2019. – Vol. 67 (2). – P. 131–144. doi: 10.23736/S0026-4725.18.04775-8.</mixed-citation><mixed-citation xml:lang="en">Electrocardiographic conduction and repolarization markers associated with sudden cardiac death: moving along the electrocardiography waveform // J.T. Reynard, O.M. Oshodi, J.C. Lai [et al.] // Minerva Cardioangiol. – 2019. – Vol. 67 (2). – P. 131-144. doi: 10.23736/S0026-4725.18.04775-8.</mixed-citation></citation-alternatives></ref><ref id="cit10"><label>10</label><citation-alternatives><mixed-citation xml:lang="ru">Exploring the association of natriuretic peptides with QTc interval in hemodialysis patients // Y. Matsumoto, Y. Mori, S. Kageyama [et al.] // Ren Fail. – 2025. – Vol. 47 (1). – P. 2460720. doi: 10.1080/0886022X.2025.2460720.</mixed-citation><mixed-citation xml:lang="en">Exploring the association of natriuretic peptides with QTc interval in hemodialysis patients // Y. Matsumoto, Y. Mori, S. Kageyama [et al.] // Ren Fail. – 2025. – Vol. 47 (1). – P. 2460720. doi: 10.1080/0886022X.2025.2460720.</mixed-citation></citation-alternatives></ref><ref id="cit11"><label>11</label><citation-alternatives><mixed-citation xml:lang="ru">Электрическая нестабильность миокарда у детей разного возраста: диагностика, прогностическая значимость и принципы коррекции (обзор литературы) // Л.А. Балыкова, Д.О. Владимиров, Е.Н. Тягушева [и др.] // Педиатрическая фармакология. – 2025. №22 (1). – С. 62–71. https://doi.org/10.15690/pf.v22i1.2855</mixed-citation><mixed-citation xml:lang="en">Electrical instability of the myocardium in children of different ages: diagnosis, prognostic significance and principles of correction (literature review) [Elektricheskaya nestabil’nost’ miokarda u detei raznogo vozrasta: diagnostika, prognosticheskaia znachimost’ i printsipy korrektsii (obzor literatury)] // L.A. Balykova, D.O. Vladimirov, E.N. Tyagusheva [et al.] // Pediatricheskaya farmakologiya. – 2025. – № 22 (1). – S. 62–71. https://doi.org/10.15690/pf.v22i1.2855</mixed-citation></citation-alternatives></ref><ref id="cit12"><label>12</label><citation-alternatives><mixed-citation xml:lang="ru">Normal values of M mode echocardiographic measurements of more than 2000 healthy infants and children in central Europe // C. Kampmann, C.M. Wiethoff, A. Wenzel [et al.] // Heart. – 2000. – Vol. 83 (6). – P. 667-672. doi: 10.1136/heart.83.6.667.</mixed-citation><mixed-citation xml:lang="en">Normal values of M mode echocardiographic measurements of more than 2000 healthy infants and children in central Europe // C. Kampmann, C.M. Wiethoff, A. Wenzel [et al.] // Heart. – 2000. – Vol. 83 (6). – P. 667-672. doi: 10.1136/heart.83.6.667.</mixed-citation></citation-alternatives></ref></ref-list><fn-group><fn fn-type="conflict"><p>The authors declare that there are no conflicts of interest present.</p></fn></fn-group></back></article>
