<?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">cardiotomsk</journal-id><journal-title-group><journal-title xml:lang="ru">Сибирский журнал клинической и экспериментальной медицины</journal-title><trans-title-group xml:lang="en"><trans-title>Siberian Journal of Clinical and Experimental Medicine</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2713-2927</issn><issn pub-type="epub">2713-265X</issn><publisher><publisher-name>TSU publishing</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.29001/2073-8552-2023-38-4-97-105</article-id><article-id custom-type="elpub" pub-id-type="custom">cardiotomsk-2058</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>КЛИНИЧЕСКИЕ ИССЛЕДОВАНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>CLINICAL STUDIES</subject></subj-group></article-categories><title-group><article-title>Эффективность аблации фибрилляции предсердий при наличии хронического миокардита</article-title><trans-title-group xml:lang="en"><trans-title>Effectiveness of atrial fibrillation ablation in the presence of chronic myocarditis</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-2530-361X</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, канд. мед. наук, научный сотрудник, лаборатория высоких технологий диагностики и лечения нарушений ритма сердца</p><p>634012, Томск, ул. Киевская, 111а</p></bio><bio xml:lang="en"><p>Evgenii A. Archakov, Cand. Sci. (Med.), Research Scientist, Laboratory of High Technologies for Diagnosis and Treatment of Cardiac Arrhythmias</p><p>111a, Kievskaya str., Tomsk, 634012</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/0000-0003-1415-3932</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, д-р мед. наук, заведующий лаборатории высоких технологий диагностики и лечения нарушений ритма сердца</p><p>634012, Томск, ул. Киевская, 111а</p></bio><bio xml:lang="en"><p>Roman E. Batalov, Dr. Sci. (Med.), Head of the Laboratory of High Technologies for Diagnosis and Treatment of Cardiac Arrhythmias</p><p>111a, Kievskaya str., Tomsk, 634012</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/0000-0002-9885-5204</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. U.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Усенков Станислав Юрьевич, канд. мед. наук, врач по эндоваскулярным диагностике и лечению, лаборатория высоких технологий диагностики и лечения нарушений ритма сердца</p><p>634012, Томск, ул. Киевская, 111а</p></bio><bio xml:lang="en"><p>Stanislav U. Usenkov, Cand. Sci. (Med.), Doctor for Endovascular Diagnostics and Treatment, Laboratory of High Technologies for Diagnosis and Treatment of Cardiac Arrhythmias</p><p>111a, Kievskaya str., Tomsk, 634012</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/0000-0002-8543-6027</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Степанов</surname><given-names>И. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Stepanov</surname><given-names>I. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Степанов Иван Вадимович, канд. мед. наук, врач-патологоанатом, заведующий патологоанатомическим отделением</p><p>634012, Томск, ул. Киевская, 111а</p></bio><bio xml:lang="en"><p>Ivan V. Stepanov, Cand. Sci. (Med.), Pathologist, Head of the Pathoanatomical Department</p><p>111a, Kievskaya str., Tomsk, 634012</p><p> </p></bio><email xlink:type="simple">i_v_stepanov@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/0000-0001-6066-3998</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Афанасьев</surname><given-names>С. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Afanasiev</surname><given-names>S. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Афанасьев Сергей Александрович, д-р мед. наук, профессор, заведующий лабораторией молекулярно-клеточной патологии и генодиагностики</p><p>634012, Томск, ул. Киевская, 111а</p></bio><bio xml:lang="en"><p>Sergey A. Afanasiev, Dr. Sci. (Med.), Professor, Head of the Laboratory of Molecular Cell Pathology and Genodiagnostics</p><p>111a, Kievskaya str., Tomsk, 634012</p></bio><email xlink:type="simple">tursky@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/0000-0002-9050-4493</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Попов</surname><given-names>С. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Popov</surname><given-names>S. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Попов Сергей Валентинович, д-р мед. наук, профессор, академик РАН, директор Научно-исследовательского института кардиологии</p><p>634012, Томск, ул. Киевская, 111а</p></bio><bio xml:lang="en"><p>Sergey V. Popov, Dr. Sci. (Med.), Professor, Academician of the Russian Academy of Sciences, Director of the Cardiology Research Institute</p><p>111a, Kievskaya str., Tomsk, 634012</p></bio><email xlink:type="simple">psv@cardio-tomsk.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 Российской академии наук</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Cardiology Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>30</day><month>12</month><year>2023</year></pub-date><volume>38</volume><issue>4</issue><fpage>97</fpage><lpage>105</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Арчаков Е.А., Баталов Р.Е., Усенков С.Ю., Степанов И.В., Афанасьев С.А., Попов С.В., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Арчаков Е.А., Баталов Р.Е., Усенков С.Ю., Степанов И.В., Афанасьев С.А., Попов С.В.</copyright-holder><copyright-holder xml:lang="en">Archakov E.A., Batalov R.E., Usenkov S.U., Stepanov I.V., Afanasiev S.A., Popov S.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://www.sibjcem.ru/jour/article/view/2058">https://www.sibjcem.ru/jour/article/view/2058</self-uri><abstract><sec><title>Цель</title><p>Цель: сравнение эффективности интервенционного лечения фибрилляции предсердий (ФП) у пациентов с хроническим миокардитом, выявленным по данным эндомиокардиальной биопсии (ЭМБ), и у пациентов без миокардита.</p></sec><sec><title>Материал и методы</title><p>Материал и методы. В исследуемую выборку включены 40 пациентов, из них 27 (67,5%) мужчин. Возраст в выборке составил 49 (44; 55) лет. В исследование вошли 25 (62,5%) больных с пароксизмальной формой ФП, 10 (25,0%) – с персистирующей и 5 (12,5%) – с длительно-персистирующей. Всем пациентам было проведено оперативное лечение ФП методом радиочастотной (РЧА) или криобаллонной аблации (КБА). Для верификации диагноза у 18 больных выполняли ЭМБ. Период наблюдения за пациентами составил 12 мес.</p></sec><sec><title>Результаты</title><p>Результаты: Всем пациентам проведено оперативное лечение ФП, в 7 случаях (17,5%) выполнена КБА легочных вен (ЛВ), в 33 (82,5%) – РЧА. По результатам биопсии признаки миокардита выявлены у 9 больных (22,5%). Очаговый миокардит обнаружен у 7, диффузный – у 2 больных. Эффективность катетерного лечения в общем составила 72,5%, для КБА – 71,5%, для РЧА – 73,5%. Эффективность аблации ФП с наличием выявленного миокардита составила 88,9%, без миокардита – 67,5%.</p></sec><sec><title>Выводы</title><p>Выводы. Эффективность катетерного лечения ФП у пациентов с признаками миокардита достигала 88,9% и оказалась выше, чем у пациентов без признаков миокардита.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Aim</title><p>Aim: To compare the effectiveness of interventional treatment of atrial fibrillation (AF) in patients with chronic myocarditis identified by endomyocardial biopsy and in patients without myocarditis.</p></sec><sec><title>Material and Methods</title><p>Material and Methods. The study sample included 40 patients. Of these, 27 (67.5%) are men. The age in the sample was 49 (44; 55) years. The study included 25 (62.5%) patients with paroxysmal AF, 10 (25.0%) with persistent and 5 (12.5%) with long-term persistent. All patients underwent surgical treatment of AF using radiofrequency ablation (RFA) or cryoablation (CA). Endomyocardial biopsy was performed in 18 patients to verify the diagnosis. The follow-up period for patients was 12 months.</p></sec><sec><title>Results</title><p>Results. All patients underwent surgical treatment of AF, in 7 cases (17.5%) CA of the left ventricle (LV) was performed; in 33 (82.5%) cases RFA was performed. According to the biopsy results, signs of myocarditis were detected in 9 patients (22.5%). Focal myocarditis was found in 7 patients, diffuse – in 2. The effectiveness of catheter treatment in general was 72.5%, for CA – 71.5%, for RFA 73.5%. The effectiveness of AF ablation with the presence of detected myocarditis was 88.9%, without myocarditis – 67.5%.</p></sec><sec><title>Conclusions</title><p>Conclusions. The effectiveness of catheter treatment of AF in patients with signs of myocarditis was 88.9% and was higher than in patients without signs of myocarditis.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>фибрилляция предсердий</kwd><kwd>хронический миокардит</kwd><kwd>катетерная аблация</kwd></kwd-group><kwd-group xml:lang="en"><kwd>atrial fibrillation</kwd><kwd>chronic myocarditis</kwd><kwd>catheter ablation</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена в рамках темы ФНИ № 122020300183-4.</funding-statement><funding-statement xml:lang="en">The study was supported by governmental requests fundamental research № 122020300183-4.</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">Киргизова М.А., Эшматов О.Р., Богданов Ю.И., Баталов Р.Е., Попов С.В. Антитромботическая терапия у пациентов с ишемической болезнью сердца и фибрилляцией предсердий после прямой реваскуляризации миокарда. Сибирский журнал клинической и экспериментальной медицины. 2020;35(4):49–56 DOI: 10.29001/2073-8552-2020-35-4-49-56.</mixed-citation><mixed-citation xml:lang="en">Kirgizova M.A., Eshmatov O.R., Bogdanov Yu.I., Batalov R.E., Popov S.V. Antithrombotic therapy in patients with coronary heart disease and atrial fibrillation after direct myocardial revascularization. The Siberian Journal of Clinical and Experimental Medicine. 2020;35(4):49– 56. (In Russ.). DOI: 10.29001/2073-8552-2020-35-4-49-56.</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Арутюнов Г.П., Палеев Ф.Н., Моисеева О.М., Драгунов Д.О., Соколова А.В., Арутюнов А.Г. и др. Миокардиты у взрослых. Клинические рекомендации 2020. Российский кардиологический журнал. 2021;26(11):4790. DOI: 10.15829/1560-4071-2021-4790.</mixed-citation><mixed-citation xml:lang="en">Arutyunov G.P., Paleev F.N., Moiseeva O.M., Dragunov D.O., Sokolova A.V., Arutyunov A.G. et al. Myocarditis in adults. Clinical guidelines 2020. Russian Journal of Cardiology. 2021;26(11):4790. (In Russ.) DOI: 10.15829/1560-4071-2021-4790.</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Muslimova E., Rebrova T., Kondratieva D., Korepanov V., Sonduev E., Kozlov B. et al. Expression of the β1-adrenergic receptor (ADRB1) gene in the myocardium and β-adrenergic reactivity of the body in patients with a history of myocardium infraction. Gene. 2022;844:146820. DOI: 10.1016/j.gene.2022.146820.</mixed-citation><mixed-citation xml:lang="en">Muslimova E., Rebrova T., Kondratieva D., Korepanov V., Sonduev E., Kozlov B. et al. Expression of the β1-adrenergic receptor (ADRB1) gene in the myocardium and β-adrenergic reactivity of the body in patients with a history of myocardium infraction. Gene. 2022;844:146820. DOI: 10.1016/j.gene.2022.146820.</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Basso C., Calabrese F., Angelini A., Carturan E., Thiene G. Classification and histological, immunohistochemical, and molecular diagnosis of inflammatory myocardial disease. Heart Fail. Rev. 2013;18(6):673–681. DOI: 10.1007/s10741-012-9355-6.</mixed-citation><mixed-citation xml:lang="en">Basso C., Calabrese F., Angelini A., Carturan E., Thiene G. Classification and histological, immunohistochemical, and molecular diagnosis of inflammatory myocardial disease. Heart Fail. Rev. 2013;18(6):673–681. DOI: 10.1007/s10741-012-9355-6.</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Caforio A.L., Pankuweit S., Arbustini E., Basso C., Gimeno-Blanes J., Felix S.B. et al. European Society of Cardiology Working Group on Myocardial and Pericardial Diseases. Current state of knowledge on aetiology, diagnosis, management, and therapy of myocarditis: a position statement of the European Society of Cardiology Working Group on Myocardial and Pericardial Diseases. Eur. Heart J. 2013;34(33):2636– 2648. DOI: 10.1093/eurheartj/eht210.</mixed-citation><mixed-citation xml:lang="en">Caforio A.L., Pankuweit S., Arbustini E., Basso C., Gimeno-Blanes J., Felix S.B. et al. European Society of Cardiology Working Group on Myocardial and Pericardial Diseases. Current state of knowledge on aetiology, diagnosis, management, and therapy of myocarditis: a position statement of the European Society of Cardiology Working Group on Myocardial and Pericardial Diseases. Eur. Heart J. 2013;34(33):2636– 2648. DOI: 10.1093/eurheartj/eht210.</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Mitrofanova L.B., Orshanskaya V., Ho S.Y., Platonov P.G. Histological evidence of inflammatory reaction associated with fibrosis in the atrial and ventricular walls in a case-control study of patients with history of atrial fibrillation. Europace. 2016;18(Suppl. 4):iv156–iv162. DOI: 10.1093/europace/euw361.</mixed-citation><mixed-citation xml:lang="en">Mitrofanova L.B., Orshanskaya V., Ho S.Y., Platonov P.G. Histological evidence of inflammatory reaction associated with fibrosis in the atrial and ventricular walls in a case-control study of patients with history of atrial fibrillation. Europace. 2016;18(Suppl. 4):iv156–iv162. DOI: 10.1093/europace/euw361.</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Ichiki T., Huntley B.K., Sangaralingham S.J., Harty G.J., Burnett J.C. Atrium fibrosis and inflammation: impaired atrial natriuretic peptide system in experimental heart failure. Circulation. 2014;130(Suppl. 2):A12651. DOI: 10.1161/circ.130.suppl_2.12651.</mixed-citation><mixed-citation xml:lang="en">Ichiki T., Huntley B.K., Sangaralingham S.J., Harty G.J., Burnett J.C. Atrium fibrosis and inflammation: impaired atrial natriuretic peptide system in experimental heart failure. Circulation. 2014;130(Suppl. 2):A12651. DOI: 10.1161/circ.130.suppl_2.12651.</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">Matsumori A. Management of atrial fibrillation using immunoglobulin free light chains, novel biomarkers of inflammation. Eur. Cardiol. 2022;17:e22. DOI: 10.15420/ecr.2022.30.</mixed-citation><mixed-citation xml:lang="en">Matsumori A. Management of atrial fibrillation using immunoglobulin free light chains, novel biomarkers of inflammation. Eur. Cardiol. 2022;17:e22. DOI: 10.15420/ecr.2022.30.</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">Kugler S., Onodi Z., Ruppert M., Sayour A.A., Oláh A., Benke K. et al. Inflammasome activation in end-stage heart failure-associated atrial fibrillation. ESC Heart Fail. 2022;9:2747–2752. DOI: 10.1002/ehf2.13972.</mixed-citation><mixed-citation xml:lang="en">Kugler S., Onodi Z., Ruppert M., Sayour A.A., Oláh A., Benke K. et al. Inflammasome activation in end-stage heart failure-associated atrial fibrillation. ESC Heart Fail. 2022;9:2747–2752. DOI: 10.1002/ehf2.13972.</mixed-citation></citation-alternatives></ref><ref id="cit10"><label>10</label><citation-alternatives><mixed-citation xml:lang="ru">Li N., Brundel B.J.J.M. Inflammasomes and proteostasis novel molecular mechanisms associated with atrial fibrillation. Circ. Res. 2020;127:73– 90. DOI: 10.1161/CIRCRESAHA.119.316364.</mixed-citation><mixed-citation xml:lang="en">Li N., Brundel B.J.J.M. Inflammasomes and proteostasis novel molecular mechanisms associated with atrial fibrillation. Circ. Res. 2020;127:73– 90. DOI: 10.1161/CIRCRESAHA.119.316364.</mixed-citation></citation-alternatives></ref><ref id="cit11"><label>11</label><citation-alternatives><mixed-citation xml:lang="ru">Weymann A., Popov A.F., Sabashnikov A., Ali-Hasan-Al-Saegh S., Ryazanov M., Tse G., Mirhosseini S.J. et al. Baseline and postoperative levels of C-reactive protein and interleukins as inflammatory predictors of atrial fibrillation following cardiac surgery: a systematic review and meta-analysis. Kardiol. Pol. 2018;76:440–451. DOI: 10.5603/KP.a2017.0242.</mixed-citation><mixed-citation xml:lang="en">Weymann A., Popov A.F., Sabashnikov A., Ali-Hasan-Al-Saegh S., Ryazanov M., Tse G., Mirhosseini S.J. et al. Baseline and postoperative levels of C-reactive protein and interleukins as inflammatory predictors of atrial fibrillation following cardiac surgery: a systematic review and meta-analysis. Kardiol. Pol. 2018;76:440–451. DOI: 10.5603/KP.a2017.0242.</mixed-citation></citation-alternatives></ref><ref id="cit12"><label>12</label><citation-alternatives><mixed-citation xml:lang="ru">Шелемехов А.Е., Баталов Р.Е., Роговская Ю.В., Усенков С., Арчаков Е., Гусакова А. и др. Клиническая эффективность катетерного лечения фибрилляции предсердий в зависимости от динамики гистологических изменений в миокарде по результатам эндомиокардиальной биопсии правого желудочка. Патология кровообращения и кардиохирургия. 2020;24(3):90–106. DOI: 10.21688/1681-34722020-3-90-106.</mixed-citation><mixed-citation xml:lang="en">Shelemekhov A.E., Batalov R.E., Rogovskaya Yu.V., Usenkov S., Archakov Y., Gusakova A. et al. Clinical effectiveness of catheter treatment of atrial fibrillation depending on the dynamics of histological changes in the myocardium according to the results of endomyocardial biopsy of the right ventricle. Circulatory pathology and cardiac surgery. 2020;24(3):90–106. (In Russ.). DOI: 10.21688/1681-34722020-3-90-106.</mixed-citation></citation-alternatives></ref><ref id="cit13"><label>13</label><citation-alternatives><mixed-citation xml:lang="ru">Batalov R.E., Khlynin M.S., Rogovskaya Y.V., Sazonova S.I., Tatarskiy R.B., Anfinogenova N. et al. Isolated atrial fibrillation, inflammation and efficacy of radiofrequency ablation: Preliminary insights based on a single-center endomyocardial biopsy study. J. Clin. Med. 2023;12(4):1254. DOI: 10.3390/jcm12041254.</mixed-citation><mixed-citation xml:lang="en">Batalov R.E., Khlynin M.S., Rogovskaya Y.V., Sazonova S.I., Tatarskiy R.B., Anfinogenova N. et al. Isolated atrial fibrillation, inflammation and efficacy of radiofrequency ablation: Preliminary insights based on a single-center endomyocardial biopsy study. J. Clin. Med. 2023;12(4):1254. DOI: 10.3390/jcm12041254.</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>
