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<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">russjcardiol</journal-id><journal-title-group><journal-title xml:lang="ru">Российский кардиологический журнал</journal-title><trans-title-group xml:lang="en"><trans-title>Russian Journal of Cardiology</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1560-4071</issn><issn pub-type="epub">2618-7620</issn><publisher><publisher-name>«SILICEA-POLIGRAF» LLC</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.15829/1560-4071-2020-3418</article-id><article-id custom-type="elpub" pub-id-type="custom">russjcardiol-3418</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 СТАТЬИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ORIGINAL ARTICLES</subject></subj-group></article-categories><title-group><article-title>Клиническая эффективность катетерного лечения фибрилляции предсердий в зависимости от гистологических изменений в миокарде</article-title><trans-title-group xml:lang="en"><trans-title>Clinical efficacy of atrial fibrillation ablation depending on histological changes in the myocardium</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5671-7201</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Шелемехов</surname><given-names>А. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Shelemekhov</surname><given-names>A. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Шелемехов      Алексей Евгеньевич — врач сердечно-сосудистый хирург отделения хирургического лечения сложных нарушений ритма сердца и элекгрокардиостимуляции.</p></bio><email xlink:type="simple">SmartSokol@mail.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/0000-0003-1415-3932</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Баталов</surname><given-names>Р. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Batalov</surname><given-names>R. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Баталов Роман Ефимович — доктор медицинских наук, ведущий научный сотрудник отделения хирургического лечения сложных нарушений ритма сердца и электрокардиостимуляции.</p><p>Томск</p></bio><email xlink:type="simple">romancer@cardio-tomsk.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/0000-0001-9553-9647</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Усенков</surname><given-names>С. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Usenkov</surname><given-names>S. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Усенков Станислав Юрьевич — кандидат медицинских наук, врач по рентгенэндоваскулярным диагностике и лечению отделения хирургического лечения сложных нарушений ритма сердца и электрокардиостимуляции.</p></bio><email xlink:type="simple">sturus@rambler.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/0000-0002-2530-361X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Арчаков</surname><given-names>Е. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Archakov</surname><given-names>E. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Арчаков Евгений Александрович — младший научный сотрудник отделения хирургического лечения сложных нарушений ритма сердца и электрокардиостимуляции.</p></bio><email xlink:type="simple">aea_cardio@mail.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/0000-0002-3147-3025</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Гусакова</surname><given-names>А. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Gusakova</surname><given-names>A. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Гусакова Анна Михайловна — кандидат физических наук, научный сотрудник отделения функциональной и лабораторной диагностики.</p><p>Томск</p></bio><email xlink:type="simple">mag_a@mail.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/0000-0001-5553-7831</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Роговская</surname><given-names>Ю. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Rogovskaya</surname><given-names>Yu. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Роговская Юлия Викторовна — кандидат медицинских наук, врач-патологоанатом, зав. патологоанатомическим отделением.</p><p>Томск</p></bio><email xlink:type="simple">pathan@cardio-tomsk.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/0000-0002-3496-0224</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ребенкова</surname><given-names>М. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Rebenkova</surname><given-names>M. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ребенкова Мария Сергеевна — младший научный сотрудник, лаборатории молекулярной клеточной патологии и генодиагностики.</p><p>Томск</p></bio><email xlink:type="simple">mariambf@mai.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Научно-исследовательский институт кардиологии, Томский национальный исследовательский медицинский центр, Российская академия наук</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Cardiology Research Institute, Tomsk National Research Medical Center</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2020</year></pub-date><pub-date pub-type="epub"><day>12</day><month>08</month><year>2020</year></pub-date><volume>25</volume><issue>7</issue><fpage>3418</fpage><lpage>3418</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Шелемехов А.Е., Баталов Р.Е., Усенков С.Ю., Арчаков Е.А., Гусакова А.М., Роговская Ю.В., Ребенкова М.С., 2020</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="ru">Шелемехов А.Е., Баталов Р.Е., Усенков С.Ю., Арчаков Е.А., Гусакова А.М., Роговская Ю.В., Ребенкова М.С.</copyright-holder><copyright-holder xml:lang="en">Shelemekhov A.E., Batalov R.E., Usenkov S.Y., Archakov E.A., Gusakova A.M., Rogovskaya Y.V., Rebenkova M.S.</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://russjcardiol.elpub.ru/jour/article/view/3418">https://russjcardiol.elpub.ru/jour/article/view/3418</self-uri><abstract><p>Существует группа пациентов с так называемой “идиопатической” фибрилляцией предсердий (ФП), у которых причин, способных привести к развитию аритмии, при стандартном обследовании не выявлено.</p><sec><title>Цель</title><p>Цель. Изучить влияние гистологических изменений в миокарде у пациентов с “идиопатической” формой ФП на эффективность катетерного лечения. Материал и методы. В исследование включен 101 пациент с “идиопатической” ФП. Всем пациентам выполнено катетерное лечение, во время которого взята биопсия миокарда. В зависимости от результатов проведенного интервенционного вмешательства сформировано 3 группы: 1 — отсутствие ФП в течение 12 мес., 2 — развитие рецидива аритмии в течение первых 3 мес. наблюдения, 3 — развитие рецидива аритмии после 3 мес. наблюдения. Для оценки воспалительных изменений и выраженности фиброза проведено гистологическое и иммуногистохимическое исследования биоптатов миокарда.</p></sec><sec><title>Результаты</title><p>Результаты. Гистологические критерии лимфоцитарного миокардита в группе 1 имели место у 47,5% пациентов, в группе 2 и 3 у 27,3% и 25%, соответственно. Инфильтрация СD3+ лимфоцитами &lt;7 клеток на 1 мм2 преобладала в группе 3. Активность воспаления в исследованных группах статистически значимо не различалась. Минимальная выраженность фиброза достоверно реже регистрировалась в группе 1, чем в группе 2 и 3. Отсутствие экспрессии вирусных антигенов в первой группе регистрировалось достоверно реже, чем во второй и третьей группе. При этом сочетание экспрессии энтеровирусного антигена VP1 и антигенов вируса герпеса 6 типа достоверно чаще регистрировалось в первой группе. Выявлены положительные корреляционные связи между экспрессией вирусных антигенов и показателями, характеризующими фиброз эндо-и миокарда.</p></sec><sec><title>Заключение</title><p>Заключение. Основным фактором риска развития рецидивов аритмии являлась начальная стадия фиброза, в то время как воспалительные изменения и вирусная инфекция не являются факторами риска развития рецидива аритмии. Наличие вирусных антигенов в миокарде имело опосредованное влияние на клинический результат проведенного лечения.</p></sec><sec><title> </title><p> </p></sec></abstract><trans-abstract xml:lang="en"><p>There is a group of patients with so-called idiopathic atrial fibrillation (AF) without the causes of arrhythmia established by a standard examination.</p><sec><title>Aim</title><p>Aim. To study the effect of histological changes in the myocardium in patients with idiopathic AF on the effectiveness of ablation.</p></sec><sec><title>Material and methods</title><p>Material and methods. The study included 101 patients with idiopathic AF All patients underwent ablation, during which a myocardial biopsy was performed. Depending on the results of intervention, 3 groups were formed: 1 — no AF within 12 months, 2 — recurrent arrhythmia within first 3 months of follow-up, 3 — recurrent arrhythmia after first 3 months of follow-up. To assess inflammatory changes and the severity of fibrosis, histological and immunohistochemical tests of myocardial biopsies were performed.</p></sec><sec><title>Results</title><p>Results. Histological criteria for lymphocytic myocarditis in group 1 observed in 47,5% of patients, in groups 2 and 3 in 27,3% and 25%, respectively. Infiltration of less than 7 cells per 1 mm2 by CD3+ lymphocytes prevailed in group 3. The activity of inflammation in the studied groups did not significantly differ. The minimum severity of fibrosis was significantly less frequently recorded in group 1 than in group 2 and 3. Nonexpression of viral antigens in the first group was significantly less common than in the second and third groups. Moreover, the combination of expression of enterovirus VP1 and human herpesvirus 6 antigens was significantly more often recorded in the first group. Positive correlation was found between the expression of viral antigens and markers of endo- and myocardial fibrosis.</p></sec><sec><title>Conclusion</title><p>Conclusion. The primary risk factor for recurrent arrhythmia was the initial stage of fibrosis, while inflammatory changes and viral infection were not risk factors. The presence of viral antigens in the myocardium had an indirect effect on the clinical outcome.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>радиочастотная аблация</kwd><kwd>фибрилляция предсердий</kwd><kwd>миокардит</kwd><kwd>эндомиокардиальная биопсия</kwd><kwd>эффективность</kwd></kwd-group><kwd-group xml:lang="en"><kwd>radiofrequency ablation</kwd><kwd>atrial fibrillation</kwd><kwd>myocarditis</kwd><kwd>endomyocardial biopsy</kwd><kwd>effectiveness</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">Kirchof P, Benussi S, Kotecha D, et al. 2016 ESC Guidelines for the management of atrial fibrillation developed in collaboration with EACT/Eur. 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