<?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">ppharm</journal-id><journal-title-group><journal-title xml:lang="ru">Педиатрическая фармакология</journal-title><trans-title-group xml:lang="en"><trans-title>Pediatric pharmacology</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1727-5776</issn><issn pub-type="epub">2500-3089</issn><publisher><publisher-name>Издательство «ПедиатрЪ»</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.15690/pf.v23i3.3072</article-id><article-id custom-type="elpub" pub-id-type="custom">ppharm-2842</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>КРАТКИЕ СООБЩЕНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>SHORT REPORT</subject></subj-group></article-categories><title-group><article-title>Электрокардиографические признаки нарушений деполяризации миокарда у новорожденных, зачатых с помощью экстракорпорального оплодотворения, и возможности их коррекции</article-title><trans-title-group xml:lang="en"><trans-title>Electrocardiographic Signs of Myocardial Depolarization Disorders in Newborns Conceived by in Vitro Fertilization and the Possibilities of its Management</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-1193-3178</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Тягушева</surname><given-names>Е. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Tyagusheva</surname><given-names>Evgeniya N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Тягушева Евгения Николаевна – студентка.</p><p>430005, Саранск, ул. Большевистская, д. 68, тел.: +7 (962) 593-50-22</p></bio><bio xml:lang="en"><p>Student.</p><p>68, Bolshevistskaya Str., Saransk, 430005; телефон: +7 (962) 593-50-22</p></bio><email xlink:type="simple">evgenia.tyagusheva@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-2290-0013</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Балыкова</surname><given-names>Л. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Balykova</surname><given-names>Larisa A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Балыкова Лариса Александровна - д.м.н., профессор, член-корреспондент РАН.</p><p>Саранск</p></bio><bio xml:lang="en"><p>MD, PhD, Professor, Corresponding Member of the RAS.</p><p>Saransk</p></bio><email xlink:type="simple">larisabalykova@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-5332-8240</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Науменко</surname><given-names>Е. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Naumenko</surname><given-names>Elena I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Науменко Елена Ивановна - к.м.н.</p><p>Саранск</p></bio><bio xml:lang="en"><p>MD, PhD.</p><p>Saransk</p></bio><email xlink:type="simple">ei-naumenko@yandex.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-2624-6450</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Власова</surname><given-names>Т. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Vlasova</surname><given-names>Tatyana I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Власова Татьяна Ивановна - д.м.н., профессор.</p><p>Саранск</p></bio><bio xml:lang="en"><p>MD, PhD, Professor.</p><p>Saransk</p></bio><email xlink:type="simple">v.t.i@bk.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-8877-3881</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Тумаева</surname><given-names>Т. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Tumaeva</surname><given-names>Tatyana S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Тумаева Татьяна Станиславовна</p><p>Саранск</p></bio><bio xml:lang="en"><p>MD.</p><p>Saransk</p></bio><email xlink:type="simple">tstumaeva@mail.ru</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-2121-8346</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Владимиров</surname><given-names>Д. О.</given-names></name><name name-style="western" xml:lang="en"><surname>Vladimirov</surname><given-names>Denis O.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Владимиров Денис Олегович</p><p>Саранск</p></bio><bio xml:lang="en"><p>MD.</p><p>Saransk</p></bio><email xlink:type="simple">d.o.vladimirov@yandex.ru</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>Тишкова</surname><given-names>О. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Tishkova</surname><given-names>Olga E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Тишкова Ольга Евгеньевна</p><p>Саранск</p></bio><bio xml:lang="en"><p>MD.</p><p>Saransk</p></bio><email xlink:type="simple">olga.tishkova.81@bk.ru</email><xref ref-type="aff" rid="aff-3"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Национальный исследовательский Мордовский государственный университет им. Н.П. Огарёва</institution><country>Россия</country></aff><aff xml:lang="en"><institution>National Research Mordovia State University named after N.P. Ogarev</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Национальный исследовательский Мордовский государственный университет им. Н.П. Огарёва; Мордовская республиканская центральная клиническая больница</institution><country>Россия</country></aff><aff xml:lang="en"><institution>National Research Mordovia State University named after N.P. Ogarev; Mordovian Republican Central Clinical Hospital</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Мордовская республиканская центральная клиническая больница</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Mordovian Republican Central Clinical Hospital</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2026</year></pub-date><pub-date pub-type="epub"><day>27</day><month>07</month><year>2026</year></pub-date><volume>23</volume><issue>3</issue><fpage>311</fpage><lpage>324</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Тягушева Е.Н., Балыкова Л.А., Науменко Е.И., Власова Т.И., Тумаева Т.С., Владимиров Д.О., Тишкова О.Е., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Тягушева Е.Н., Балыкова Л.А., Науменко Е.И., Власова Т.И., Тумаева Т.С., Владимиров Д.О., Тишкова О.Е.</copyright-holder><copyright-holder xml:lang="en">Tyagusheva E.N., Balykova L.A., Naumenko E.I., Vlasova T.I., Tumaeva T.S., Vladimirov D.O., Tishkova O.E.</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://www.pedpharma.ru/jour/article/view/2842">https://www.pedpharma.ru/jour/article/view/2842</self-uri><abstract><sec><title>Обоснование</title><p>Обоснование. В настоящее время отмечается значительный рост применения вспомогательных репродуктивных технологий (ВРТ). При этом электрофизиологическое состояние миокарда, включая риск нарушений ритма сердца (НРС), у новорожденных после экстракорпорального оплодотворения (ЭКО) остается малоизученным. Отсутствуют данные комплексной оценки параметров стандартной электрокардиограммы (ЭКГ), а также подходов к их коррекции в раннем неонатальном периоде у данной категории пациентов.</p><p>Цель исследования — изучить электрокардиографические признаки нарушений деполяризации миокарда у новорожденных, зачатых с помощью ЭКО, и оценить эффективность цитофлавина в коррекции выявленных нарушений у недоношенных новорожденных с церебральной ишемией (ЦИ).</p></sec><sec><title>Методы</title><p>Методы. Дизайн исследования включал 2 этапа. На первом этапе проведено одноцентровое ретроспективное одномоментное сравнительное когортное исследование, в которое были включены 580 новорожденных, распределенные в 2 группы: основную (дети после ЭКО, n = 206) и сравнения (дети от самопроизвольной беременности, n = 374). Группы стратифицированы по гестационному возрасту (35–37 и 38–40 нед) и наличию ЦИ I–II степени. На 3-и сут жизни всем детям выполнена стандартная ЭКГ с анализом параметров ритма, проводимости и маркеров нарушения деполяризации. На втором этапе выполнено открытое сравнительное рандомизированное исследование эффективности цитофлавина (2 мл/кг/сут) у 60 недоношенных новорожденных с ЦИ. Оценка динамики нарушений ритма проведена на 5-е сут после терапии.</p></sec><sec><title>Результаты</title><p>Результаты. У новорожденных, зачатых с использованием ЭКО, статистически значимо чаще регистрировались предсердный ритм (8,3% против 2,5%, p = 0,003) и наджелудочковая экстрасистолия (15,5% против 7,4%, p = 0,004). Выявлены специфические изменения параметров деполяризации: снижение амплитуды и длительности зубца P, укорочение интервала PQ, удлинение комплекса QRS. Наиболее выраженные нарушения внутрижелудочковой проводимости наблюдались у недоношенных новорожденных с ЦИ основной группы. Многофакторный анализ подтвердил, что способ зачатия (ЭКО) является независимым фактором риска нарушений деполяризации (ОШ = 1,58; 95% ДИ 1,05–2,38; p = 0,028) наряду с наличием ЦИ (ОШ = 2,41; 95% ДИ 1,60–3,64; p &lt; 0,001). Включение цитофлавина в состав базисной терапии сопровождалось статистически значимым снижением частоты синусовой брадикардии и наджелудочковой экстрасистолии к 5-м сут лечения (p &lt; 0,05) как в группе детей после ЭКО, так и у детей от самопроизвольной беременности.</p></sec><sec><title>Заключение</title><p>Заключение. Новорожденные, зачатые с использованием ЭКО, уже на 3-и сут жизни формируют группу повышенного риска развития нарушений деполяризации миокарда. Наибольший риск наблюдается при сочетании фактора ЭКО с недоношенностью и ЦИ. Применение цитофлавина у недоношенных новорожденных с ЦИ демонстрирует положительный эффект в коррекции выявленных НРС, что обосновывает возможность его использования у данной категории пациентов.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Background</title><p>Background. Recently, a significant increase in the use of Ancillary Assisted Reproductive Technologies (ART) is noted. Meanwhile, the electrophysiological state of the myocardium, including the risk of cardiac rhythm disorders (CRD), in newborns after in vitro fertilization (IVF) remains poorly understood. No comprehensive assessments of the parameters of a standard electrocardiogram (ECG) is available, as well as approaches to their treatment in the early neonatal period in this category of patients.</p></sec><sec><title>Objective</title><p>Objective. The aim of the study is to research the electrocardiographic effects of myocardial depolarization disorders in newborns conceived with IVF and to evaluate the effectiveness of Cytoflavin in treatment of the detected disorders in premature infants with cerebral ischemia (CI).</p></sec><sec><title>Methods</title><p>Methods. The study design included 2 stages. At the first stage, a single-center, nonconcurrent, cross-sectional comparative cohort study was conducted, which included 580 newborns divided into 2 groups: the main group (children after IVF, n = 206) and the comparison group (children from spontaneous pregnancy, n = 374). The groups were stratified by fetal age (35–37 and 38-40 weeks), and the presence of CI, grade I–II. On the 3rd day of life, all children underwent a standard ECG with an analysis of rhythm parameters, conduction, and markers of depolarization disorders. At the second stage, an open comparative randomized study of the efficacy of Cytoflavin (2 ml/kg/day) was conducted in 60 premature infants with CI. The dynamics of rhythm disturbances was assessed on the 5th day after therapy.</p></sec><sec><title>Results</title><p>Results. Atrial rhythm (8.3% vs. 2.5%, p = 0.003) and supraventricular extrasystole (15.5% vs. 7.4%, p = 0.004) were more frequently reported in newborns conceived by IVF. Specific changes in depolarization parameters have been identified: a decrease in the amplitude and duration of the P wave, a shortening of the PQ interval, and an elongation of the QRS complex. The most pronounced violations of intraventricular conduction were observed in premature infants with СI of the main group. Multifactorial analysis confirmed that the method of conception (IVF) is an independent risk factor for depolarization disorders (OR = 1.58; 95% CI 1.05–2.38; p = 0.028) along with the presence of CI (OR = 2.41; 95% CI 1.60–3.64; p &lt; 0.001). The administration of Cytoflavin at the basic therapy was accompanied by a statistically significant decrease in the frequency of sinus bradycardia and supraventricular extrasystole by day 5 of treatment (p &lt; 0.05) both in the group of children after IVF and in children from spontaneous pregnancy.</p></sec><sec><title>Conclusion</title><p>Conclusion. Newborns conceived using IVF form an increased risk group for the development of myocardial depolarization disorders on the 3rd day of life. The greatest risk is observed when the IVF factor is combined with prematurity and CI. The use of Cytoflavin in premature infants with CI demonstrates a positive effect in correcting the identified CRD, which justifies the possibility of its use in this category of patients.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>вспомогательные репродуктивные технологии</kwd><kwd>экстракорпоральное оплодотворение</kwd><kwd>новорожденные</kwd><kwd>недоношенные</kwd><kwd>церебральная ишемия</kwd><kwd>электрическая нестабильность миокарда</kwd><kwd>нарушения ритма сердца</kwd><kwd>цитофлавин</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Ancillary Assisted Reproductive Technologies</kwd><kwd>in vitro fertilization</kwd><kwd>newborns</kwd><kwd>premature infants</kwd><kwd>cerebral ischemia</kwd><kwd>electrical instability of the myocardium</kwd><kwd>cardiac rhythm disorder</kwd><kwd>Cytoflavin</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">нет</funding-statement><funding-statement xml:lang="en">Not specified</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">World Health Organization. 1 in 6 people globally affected by infertility. Geneva: World Health Organization; 2023. Available online: https://www.who.int/news/item/04-04-2023-1-in-6people-globally-affected-by-infertility. Accessed on June 06, 2026.</mixed-citation><mixed-citation xml:lang="en">World Health Organization. 1 in 6 people globally affected by infertility. Geneva: World Health Organization; 2023. Available online: https://www.who.int/news/item/04-04-2023-1-in-6people-globally-affected-by-infertility. Accessed on June 06, 2026.</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Корсак В.С., Смирнова А.А., Шурыгина О.В. Регистр ВРТ Общероссийской общественной организации «Российская ассоциация репродукции человека». Отчет за 2023 год // Проблемы репродукции. — 2025. — Т. 31. — № 6. — С. 6-22. — doi: https://doi.org/10.17116/repro2025310616</mixed-citation><mixed-citation xml:lang="en">Korsak VS, Smirnova AA, Shurygina OV. ART Registry of the All-Russian Public Organization “Russian Association of Human Reproduction”. Report for 2023. Russian Journal of Human Reproduction. 2025;31(6):6–22. (In Russ). doi: https://doi.org/10.17116/repro2025310616]</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Bi WJ, Cui L, Xiao YJ, et al. Assessing cardiovascular remodelling in fetuses and infants conceived by assisted reproductive technologies: a prospective observational cohort study protocol. BMJ Open. 2019;9:e031452. doi: https://doi.org/10.1136/bmjopen-2019-031452</mixed-citation><mixed-citation xml:lang="en">Bi WJ, Cui L, Xiao YJ, et al. Assessing cardiovascular remodelling in fetuses and infants conceived by assisted reproductive technologies: a prospective observational cohort study protocol. BMJ Open. 2019;9:e031452. doi: https://doi.org/10.1136/bmjopen-2019-031452</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Наими З.М.С., Калинина Е.А., Донников А.Е. и др. Эффективность программ вспомогательных репродуктивных технологий при переносе эмбрионов в стимулированном цикле по сравнению с переносом криоконсервированных/размороженных эмбрионов // Акушерство и гинекология. — 2016. — № 6. — С. 11–17. — doi: https://doi.org/10.18565/aig.2016.6.1117</mixed-citation><mixed-citation xml:lang="en">Naimi ZMS, Kalinina EA, Donnikov AE, et al. Effectiveness of assisted reproductive technology programs in stimulated-cycle embryo transfer versus cryopreserved-thawed embryo transfer. Obstetrics and Gynecology. 2016;(6):11–17. (In Russ). doi: https://doi.org/10.18565/aig.2016.6.11-17]</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Kwon EJ, Kim YJ. What is fetal programming?: a lifetime health is under the control of in utero health. Obstet Gynecol Sci. 2017;60(6):506–519. doi: https://doi.org/10.5468/ogs.2017.60.6.506</mixed-citation><mixed-citation xml:lang="en">Kwon EJ, Kim YJ. What is fetal programming?: a lifetime health is under the control of in utero health. Obstet Gynecol Sci. 2017;60(6):506–519. doi: https://doi.org/10.5468/ogs.2017.60.6.506</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Tasias K, Papamichail M, Fasoulakis Z, et al. Investigation of cardiac remodeling and cardiac function on fetuses conceived via artificial reproductive technologies: a review. J Perinat Med. 2025;53(3):286–296. doi: https://doi.org/10.1515/jpm-2024-0346</mixed-citation><mixed-citation xml:lang="en">Tasias K, Papamichail M, Fasoulakis Z, et al. Investigation of cardiac remodeling and cardiac function on fetuses conceived via artificial reproductive technologies: a review. J Perinat Med. 2025;53(3):286–296. doi: https://doi.org/10.1515/jpm-2024-0346</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Li J, Liu Y, Huang H, Jin L. Cardiovascular health of offspring conceived by assisted reproduction technology: a comprehensive review. Front Cardiovasc Med. 2024;11:1287060. doi: https://doi.org/10.3389/fcvm.2024.1287060</mixed-citation><mixed-citation xml:lang="en">Li J, Liu Y, Huang H, Jin L. Cardiovascular health of offspring conceived by assisted reproduction technology: a comprehensive review. Front Cardiovasc Med. 2024;11:1287060. doi: https://doi.org/10.3389/fcvm.2024.1287060</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">Балыкова Л.А., Владимиров Д.О., Тягушева Е.Н. и др. Электрическая нестабильность миокарда у детей разного возраста: диагностика, прогностическая значимость и принципы коррекции (обзор литературы) // Педиатрическая фармакология. — 2025. — Т. 22. — № 1. — С. 62–71. — doi: https://doi.org/10.15690/pf.v22i1.2855</mixed-citation><mixed-citation xml:lang="en">Balykova LA, Vladimirov DO, Tyagusheva EN, et al. Electrical instability of the myocardium in children of different ages: diagnosis, prognostic significance, and principles of correction (literature review). Pediatricheskaya farmakologiya — Pediatric pharmacology. 2025;22(1):62–71. (In Russ). doi: https://doi.org/10.15690/pf.v22i1.2855]</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">Крутова А.В., Котлукова Н.П., Симонова Л.В. и др. Особенности течения и прогноз нарушений сердечного ритма и проводимости у детей первого года жизни // Педиатрия. Consilium Medicum. — 2015. — № 2. — С. 13–18.</mixed-citation><mixed-citation xml:lang="en">Krutova AV, Kotlukova NP, Simonova LV, et al. Features of the course and prognosis of cardiac rhythm and conduction disorders in infants. Pediatrics. Consilium Medicum. 2015;(2):13–18. (In Russ).</mixed-citation></citation-alternatives></ref><ref id="cit10"><label>10</label><citation-alternatives><mixed-citation xml:lang="ru">Münkler P, Klatt N, Scherschel K, et al. Repolarization indicates electrical instability in ventricular arrhythmia originating from papillary muscle. Europace. 2023;25(2):688–697. doi: https://doi.org/10.1093/europace/euac126</mixed-citation><mixed-citation xml:lang="en">Münkler P, Klatt N, Scherschel K, et al. Repolarization indicates electrical instability in ventricular arrhythmia originating from papillary muscle. Europace. 2023;25(2):688–697. doi: https://doi.org/10.1093/europace/euac126</mixed-citation></citation-alternatives></ref><ref id="cit11"><label>11</label><citation-alternatives><mixed-citation xml:lang="ru">Ковальчук В.В., Зуева И.Б., Нестерин К.В. и др. Применение препарата цитофлавин в неонатологии и педиатрии как фактор повышения эффективности терапии пациентов с поражением центральной нервной системы различной этиологии // Журнал неврологии и психиатрии им. С.С. Корсакова. — 2018. — Т. 118. — № 5-2. — С. 46–50. — doi: https://doi.org/10.17116/jnevro20181185246</mixed-citation><mixed-citation xml:lang="en">Koval’chuk VV, Zueva IB, Nesterin KV, et al. The use of citoflavin in neonatology and pediatrics as a factor improving therapeutic efficacy in patients with central nervous system lesions of various etiology. S.S. Korsakov Journal of Neurology and Psychiatry. 2018;118(5-2):46–50. (In Russ). doi: https://doi.org/10.17116/jnevro20181185246]</mixed-citation></citation-alternatives></ref><ref id="cit12"><label>12</label><citation-alternatives><mixed-citation xml:lang="ru">Кирьяков К.С., Хатагова Р.Б., Тризна Е.В. и др. Коррекция кислотно-основного состояния при гипоксически-ишемическом поражении головного мозга у новорожденных // Российский вестник перинатологии и педиатрии. — 2018. — Т. 63. — № 1. — С. 40–45. — doi: https://doi.org/10.21508/1027-4065-2018-63-1-40-45</mixed-citation><mixed-citation xml:lang="en">Kiriakov KS, Khatagova RB, Trizna EV, et al. Correction of the acid-base balance in the presence of the hypoxic-ischemic brain damage in newborns. Rossiyskiy Vestnik Perinatologii i Pediatrii = Russian Bulletin of Perinatology and Pediatrics. 2018;63(1):40–45. (In Russ). doi: https://doi.org/10.21508/1027-4065-2018-63-1-40-45]</mixed-citation></citation-alternatives></ref><ref id="cit13"><label>13</label><citation-alternatives><mixed-citation xml:lang="ru">Макаров Л.М., Комолятова В.Н., Киселева И.И. и др. Нормативные параметры ЭКГ у детей: методические рекомендации. — М.: ИД «Медпрактика-М»; 2018. — 20 с. [Makarov LM, Komolyatova VN, Kiseleva II, et al. Normativnye parametry EKG u detei: Methodological recommendations. Moscow: PH “Medical practice-M”; 2018. 20 p. (In Russ).</mixed-citation><mixed-citation xml:lang="en">Makarov LM, Komolyatova VN, Kiseleva II, et al. Normativnye parametry EKG u detei: Methodological recommendations. Moscow: PH “Medical practice-M”; 2018. 20 p. (In Russ).</mixed-citation></citation-alternatives></ref><ref id="cit14"><label>14</label><citation-alternatives><mixed-citation xml:lang="ru">Горлова И.А., Омельченко М.Ю., Соколова Л.А., Бондаренко Б.Б. Кардиоваскулярные риски у детей, рожденных с помощью репродуктивных технологий // Трансляционная медицина. — 2020. — Т. 7. — № 6. — С. 29–38. — doi: ht tps://doi.org/10.18705/23114495-2020-76-2938</mixed-citation><mixed-citation xml:lang="en">Gorlova IA, Omelchenko MYu, Sokolova LA, Bondarenko BB. Cardiovascular risks in children born through reproductive technologies. Translatsionnaya medicina = Translational Medicine. 2020;7(6):29–38. (In Russ). doi: https://doi.org/10.18705/23114495-2020-7-6-29-38]</mixed-citation></citation-alternatives></ref><ref id="cit15"><label>15</label><citation-alternatives><mixed-citation xml:lang="ru">Voros C, Papadimas G, Theodora M, et al. From Petri Dish to Primitive Heart: How IVF Alters Early Cardiac Gene Networks and Epigenetic Landscapes. Biomedicines. 2025;13(8):2044. doi: https://doi.org/10.3390/biomedicines13082044</mixed-citation><mixed-citation xml:lang="en">Voros C, Papadimas G, Theodora M, et al. From Petri Dish to Primitive Heart: How IVF Alters Early Cardiac Gene Networks and Epigenetic Landscapes. Biomedicines. 2025;13(8):2044. doi: https://doi.org/10.3390/biomedicines13082044</mixed-citation></citation-alternatives></ref><ref id="cit16"><label>16</label><citation-alternatives><mixed-citation xml:lang="ru">Saarel EV, Granger S, Kaltman JR, et al. Electrocardiograms in Healthy North American Children in the Digital Age. Circ Arrhythm Electrophysiol. 2018;11(7):e005808. doi: https://doi.org/10.1161/CIRCEP.117.005808</mixed-citation><mixed-citation xml:lang="en">Saarel EV, Granger S, Kaltman JR, et al. Electrocardiograms in Healthy North American Children in the Digital Age. Circ Arrhythm Electrophysiol. 2018;11(7):e005808. doi: https://doi.org/10.1161/CIRCEP.117.005808</mixed-citation></citation-alternatives></ref><ref id="cit17"><label>17</label><citation-alternatives><mixed-citation xml:lang="ru">Agrawal J, Shah GS, Poudel P, et al. Electrocardiographic and enzymatic correlations with outcome in neonates with hypoxicischemic encephalopathy. Ital J Pediatr. 2012;38:33. doi: https://doi.org/10.1186/1824-7288-38-33</mixed-citation><mixed-citation xml:lang="en">Agrawal J, Shah GS, Poudel P, et al. Electrocardiographic and enzymatic correlations with outcome in neonates with hypoxicischemic encephalopathy. Ital J Pediatr. 2012;38:33. doi: https://doi.org/10.1186/1824-7288-38-33</mixed-citation></citation-alternatives></ref><ref id="cit18"><label>18</label><citation-alternatives><mixed-citation xml:lang="ru">Дегтярева Е.А., Романцов М.Г., Жданова О.И. и др. Коррекция постгипоксических повреждений миокарда у новорожденных с церебральной ишемией // Экспериментальная и клиническая фармакология. — 2010. — Т. 73. — №. 10. — С. 17–20.</mixed-citation><mixed-citation xml:lang="en">Degtyareva EA, Romantsov MG, Zhdanova OI, et al. Correction of posthypoxic myocardial damage in newborns with cerebral ischemia. Éksperimentalnaya i Klinicheskaya Farmakologiya. 2010;73(10):17–20. (In Russ).</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>
