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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">evrazkar</journal-id><journal-title-group><journal-title xml:lang="ru">Евразийский Кардиологический Журнал</journal-title><trans-title-group xml:lang="en"><trans-title>Eurasian heart journal</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2225-1685</issn><issn pub-type="epub">2305-0748</issn><publisher><publisher-name>Евразийская ассоциация кардиологов</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.38109/2225-1685-2023-2-38-46</article-id><article-id custom-type="elpub" pub-id-type="custom">evrazkar-6387</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 PAPERS</subject></subj-group></article-categories><title-group><article-title>Оценка структурных изменений миокарда левого предсердия по данным магнитно-резонансной томографии с контрастированием до и после баллонной криоаблации у пациентов с персистирующей фибрилляцией предсердий</article-title><trans-title-group xml:lang="en"><trans-title>Assessment of structural changes in the left atrium myocardium according to cardiac magnetic resonance with contrast before and after balloon cryoablation in patients with persistent atrial fibrillation</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-8377-2388</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Стукалова</surname><given-names>О. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Stukalova</surname><given-names>O. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Стукалова Ольга Владимировна, к.м.н., старший научный сотрудник отдела томографии</p><p>ул. Академика Чазова, д. 15 а, Москва 121552</p></bio><bio xml:lang="en"><p>Olga V. Stukalova, Cand. of Sci. (Med.), Senior Researcher, Department of Tomography</p><p>st. Academician Chazova, 15 a, Moscow 121552</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4307-7107</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кирилова</surname><given-names>В. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Kirilova</surname><given-names>V. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Кирилова Валентина Сергеевна, аспирант отдела клинической электрофизиологии и рентгенохирургических методов лечения нарушений ритма сердца</p><p>ул. Академика Чазова, д. 15 а, Москва 121552</p></bio><bio xml:lang="en"><p>Valentina S. Kirilova, post-graduate student, the Department of Clinical Electrophysiology and X-Ray Surgical Methods for the Treatment of Cardiac Arrhythmias</p><p>st. Academician Chazova, 15 a, Moscow 121552</p></bio><email xlink:type="simple">kirilovavalentina08@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4414-698X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Апарина</surname><given-names>О. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Aparina</surname><given-names>O. P.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Апарина Ольга Петровна, к.м.н., научный сотрудник отдела клинической электрофизиологии и рентгенохирургических методов лечения нарушений ритма сердца</p><p>ул. Академика Чазова, д. 15 а, Москва 121552</p></bio><bio xml:lang="en"><p>Olga P. Aparina, Cand. of Sci. (Med.)</p><p>st. Academician Chazova, 15 a, Moscow 121552</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2989-9366</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Майков</surname><given-names>Е. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Maykov</surname><given-names>E. B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Майков Евгений Борисович, д.м.н., ведущий научный сотрудник лаборатории интервенционных методов диагностики и лечения нарушений ритма, проводимости сердца и синкопальных состояний</p><p>ул. Академика Чазова, д. 15 а, Москва 121552</p></bio><bio xml:lang="en"><p>Evgeniy B. Maykov, Dr. of Sci. (Med.), Leading Researcher, Laboratory of Interventional Methods for Diagnosis and Treatment of Rhythm Disorders, Cardiac Conduction and Syncope</p><p>st. Academician Chazova, 15 a, Moscow 121552</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБУ «НМИЦК им. ак. Е.И. Чазова» Минздрава России</institution><country>Россия</country></aff><aff xml:lang="en"><institution>E.I. Chazov National Medical Research Centre of Cardiology</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>26</day><month>05</month><year>2023</year></pub-date><volume>0</volume><issue>2</issue><fpage>38</fpage><lpage>46</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Стукалова О.В., Кирилова В.С., Апарина О.П., Майков Е.Б., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Стукалова О.В., Кирилова В.С., Апарина О.П., Майков Е.Б.</copyright-holder><copyright-holder xml:lang="en">Stukalova O.V., Kirilova V.S., Aparina O.P., Maykov E.B.</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.heartj.asia/jour/article/view/6387">https://www.heartj.asia/jour/article/view/6387</self-uri><abstract><sec><title>Цель</title><p>Цель. Изучить структурные изменения миокарда левого предсер­дия по данным магнитно-резонансной томографии с контрасти­рованием у больных с персистирующей формой фибрилляции предсердий до и после баллонной криоаблации и сопоставить результаты с эффективностью проведенного вмешательства.</p><p>Материал и методы исследования. В исследование включено 28 пациентов с персистирующей формой фибрилляции предсердий. Всем пациентам до и после криоаблации проводилась магнитно­резонансная томография сердца с отсроченным контрастирова­нием при помощи МР-импульсной последовательности высокого разрешения (размер вокселя 1,25х1,25х1,25 мм). Выраженность фиброзного поражения предсердий вычисляли автоматически при помощи специализированной программы LGE HEART Analyzer по алгоритмам на основании индекса контрастирования миокарда с пороговым значением 1,38. Проводилась оценка клинической эффективности вмешательства через 12 месяцев и определялась взаимосвязь структурных изменений в миокарде левого предсер­дия по данным контрастной магнитно-резонансной томографии до и после вмешательства с эффективностью исследования.</p></sec><sec><title>Результаты</title><p>Результаты. Выраженность фиброзного поражения миокарда левого предсердия до баллонной криоаблации составляла 1,5 [0,16; 9,3]%. Стадия фиброза оценивалась по шкале Utah. У 20 (71,4%) пациентов была выявлена 1 стадия фиброза, у 4 (14,3 %) - 2 стадия, у 1 пациента (3,6%) - 3 стадия, у 3 пациентов (10,7 %) - 4 стадия. Через 3 месяца после криоаблации отмечалось уве­личение степени выраженности фиброза до 2,7 [1,02; 18,8]% (p&lt;0,001). Общая эффективность вмешательства составила 57,1%. Построение кривых Каплана-Мейера продемонстрирова­ло, что вмешательство было наиболее эффективным у пациентов с минимальной выраженностью фиброза до аблации (Utah I) и наименее эффективным - при наиболее выраженном фиброзном поражении (стадия Utah III и IV).</p></sec><sec><title>Заключение</title><p>Заключение. Магнитно-резонансная томография сердца с контра­стированием позволяет оценить фиброзное поражение миокарда левого предсердия, которое может являться одним из факторов, влияющих на эффективность интервенционного лечения перси­стирующей фибрилляции предсердий.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Aim</title><p>Aim. To study the structural changes of the left atrium myocardium according to magnetic resonance imaging with contrast in patients with persistent atrial fibrillation before and after balloon cryoablation and compare the results with the effectiveness of the intervention.</p><p>Material and methods of research. The study included 28 patients with persistent form of atrial fibrillation. All patients before and after magnetic resonance imaging underwent cardiac magnetic resonance imaging with delayed contrast using a high-resolution MR pulse sequence (voxel size 1,25x1,25x1,25 mm) before and after cryoablation.</p><p>The severity of atrial fibrous lesion was calculated automatically using a specialized LGE HEART Analyzer program using algorithms based on the myocardial contrast index with a threshold value of 1.38. The clinical efficacy of the intervention was evaluated after 12 months and the relationship was determined structural changes in the myocardium of the left atrium according to contrast magnetic resonance imaging data before and after the cryoablation.</p></sec><sec><title>Results</title><p>Results. The severity of fibrotic myocardial lesion of the left atrium before balloon cryoablation was 1,5 [0,16; 9,3]%. In Utah patients, stage 1 fibrosis was detected in 71,4% (n=20), stage 2 in 14,3% (n=4), stage 3 in 3,6% (n=1), stage 4 in 10,7% (n=3). 3 months after cryoablation, there was an increase in the severity of fibrosis of 2,7 [1,02; 18,8]% (p&lt;0,001). Overall efficiency of the intervention rate was 57,1%. The construction of Kaplan- Meyer curves demonstrated that the intervention was most effective in patients with minimal severity of fibrosis before ablation (Utah I) and least effective in more pronounced fibrotic lesion (stage Utah III and IV)</p></sec><sec><title>Conclusion</title><p>Conclusion. Magnetic resonance imaging of the heart with contrast allows to assess fibrotic lesion of the myocardium of left atrial, which may be one of the factors of the effectiveness of interventional treatment of persistent AF.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>левое предсердие</kwd><kwd>фиброз</kwd><kwd>фибрилляция предсердий</kwd><kwd>баллонная криоаблация</kwd><kwd>магнитно-резонансная томография</kwd><kwd>легочные вены</kwd><kwd>структурное поражение</kwd></kwd-group><kwd-group xml:lang="en"><kwd>left atrium</kwd><kwd>fibrosis</kwd><kwd>atrial fibrillation</kwd><kwd>balloon cryoablation</kwd><kwd>magnetic resonance imaging</kwd><kwd>pulmonary veins</kwd><kwd>structural lesion</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">Hindricks G., Potpara T., Dagres N., Arbelo E., et al. 2020 ESC Guidelines for the diagnosis and management of atrial fibrillation developed in collaboration with the European Association for Cardio- Thoracic Surgery (EACTS): The Task Force for the diagnosis and management of atrial fibrillation of the European Society of Cardiology (ESC) Developed with the special contribution of the European Heart Rhythm Association (EHRA) of the ESC. Eur Heart J. 2021; 42(5):373- 498. https://doi.org/10.1093/eurheartj/ehaa612</mixed-citation><mixed-citation xml:lang="en">Hindricks G., Potpara T., Dagres N., Arbelo E., et al. 2020 ESC Guidelines for the diagnosis and management of atrial fibrillation developed in collaboration with the European Association for Cardio- Thoracic Surgery (EACTS): The Task Force for the diagnosis and management of atrial fibrillation of the European Society of Cardiology (ESC) Developed with the special contribution of the European Heart Rhythm Association (EHRA) of the ESC. Eur Heart J. 2021; 42(5):373- 498. https://doi.org/10.1093/eurheartj/ehaa612</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Tondo C., Iacopino S., Pieragnoli P., Molon G., et al. 1STOP Project Investigators. Pulmonary vein isolation cryoablation for patients with persistent and long-standing persistent atrial fibrillation: Clinical outcomes from the real-world multicenter observational project. Heart Rhythm. 2018; 15(3):363-368. https://doi.org/10.1016/j.hrthm.2017.10.038</mixed-citation><mixed-citation xml:lang="en">Tondo C., Iacopino S., Pieragnoli P., Molon G., et al. 1STOP Project Investigators. Pulmonary vein isolation cryoablation for patients with persistent and long-standing persistent atrial fibrillation: Clinical outcomes from the real-world multicenter observational project. Heart Rhythm. 2018; 15(3):363-368. https://doi.org/10.1016/j.hrthm.2017.10.038</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Takarada K., Overeinder I., Asmundis C., Stroker E., et al. Long-term outcome after second-generation cryoballoon ablation for paroxysmal atrial fibrillation - a 3-years follow-up. J Interv Card Electrophysiol. 2017; 49(1):93-100. https://doi.10.1007/s10840-017-0237-7</mixed-citation><mixed-citation xml:lang="en">Takarada K., Overeinder I., Asmundis C., Stroker E., et al. Long-term outcome after second-generation cryoballoon ablation for paroxysmal atrial fibrillation - a 3-years follow-up. J Interv Card Electrophysiol. 2017; 49(1):93-100. https://doi.10.1007/s10840-017-0237-7</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Floria, M., Radu, S., Gosav, E.M., Cozma D., et al. Left Atrial Structural Remodelling in Non-Valvular Atrial Fibrillation: What Have We Learnt from CMR? Diagnostics 2020; 10, 137. https://doi.org/10.3390/diagnostics10030137</mixed-citation><mixed-citation xml:lang="en">Floria, M., Radu, S., Gosav, E.M., Cozma D., et al. Left Atrial Structural Remodelling in Non-Valvular Atrial Fibrillation: What Have We Learnt from CMR? Diagnostics 2020; 10, 137. https://doi.org/10.3390/diagnostics10030137</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Bizhanov KA, Abzaliyev K.B., Baimbetov A.K., Sarsenbayeva A.B., et al.. Atrial fibrillation: Epidemiology, pathophysiology, and clinical complications (literature review). J Cardiovasc Electrophysiol. 2023; 34(1):153-165. https://doi.org/10.1111/jce.15759</mixed-citation><mixed-citation xml:lang="en">Bizhanov KA, Abzaliyev K.B., Baimbetov A.K., Sarsenbayeva A.B., et al.. Atrial fibrillation: Epidemiology, pathophysiology, and clinical complications (literature review). J Cardiovasc Electrophysiol. 2023; 34(1):153-165. https://doi.org/10.1111/jce.15759</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Park Y.J., Park J.W., Yu H.T., Zhu Y., et al. Sex difference in atrial fibrillation recurrence after catheter ablation and antiarrhythmic drugs. Heart. 2022; heartjnl-2021-320601. https://doi.10.1136/heartjnl-2021-320601</mixed-citation><mixed-citation xml:lang="en">Park Y.J., Park J.W., Yu H.T., Zhu Y., et al. Sex difference in atrial fibrillation recurrence after catheter ablation and antiarrhythmic drugs. Heart. 2022; heartjnl-2021-320601. https://doi.10.1136/heartjnl-2021-320601</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Li Z., Wang S., Hidru T.H., Hidru T.H., Sun Y., et al. Long Atrial Fibrillation Duration and Early Recurrence Are Reliable Predictors of Late Recurrence After Radiofrequency Catheter Ablation. Front Cardiovasc Med. 2022 Mar 25; 9:864417. https://doi.10.3389/fcvm.2022.864417</mixed-citation><mixed-citation xml:lang="en">Li Z., Wang S., Hidru T.H., Hidru T.H., Sun Y., et al. Long Atrial Fibrillation Duration and Early Recurrence Are Reliable Predictors of Late Recurrence After Radiofrequency Catheter Ablation. Front Cardiovasc Med. 2022 Mar 25; 9:864417. https://doi.10.3389/fcvm.2022.864417</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">Shin S.H., Park M.Y., Oh W.J., Hong S-J., et al. Left atrial volume is a predictor of atrial fibrillation recurrence after catheter ablation. J Am Soc Echocardiogr. 2008; 21(6):697-702. https://doi.10.1016/j.echo.2007.10.022</mixed-citation><mixed-citation xml:lang="en">Shin S.H., Park M.Y., Oh W.J., Hong S-J., et al. Left atrial volume is a predictor of atrial fibrillation recurrence after catheter ablation. J Am Soc Echocardiogr. 2008; 21(6):697-702. https://doi.10.1016/j.echo.2007.10.022</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">Wilson B.D., Wasmund S.L., Sachse F.B., Kaur G., et al. Evidence for a Heritable Contribution to Atrial Fibrillation Associated With Fibrosis. JACC Clin Electrophysiol. 2019; 5(4):493-500. https://doi.10.1016/j.jacep.2019.01.002</mixed-citation><mixed-citation xml:lang="en">Wilson B.D., Wasmund S.L., Sachse F.B., Kaur G., et al. Evidence for a Heritable Contribution to Atrial Fibrillation Associated With Fibrosis. JACC Clin Electrophysiol. 2019; 5(4):493-500. https://doi.10.1016/j.jacep.2019.01.002</mixed-citation></citation-alternatives></ref><ref id="cit10"><label>10</label><citation-alternatives><mixed-citation xml:lang="ru">Goette A., Kalman J.M., Aguinaga L., Akar J., et al. EHRA/HRS/ APHRS/SOLAECE expert consensus on atrial cardiomyopathies: definition, characterization, and clinical implication. Europace. 2016; 18(10):1455-1490. https://doi.org/10.1016/j.hrthm.2016.05.028</mixed-citation><mixed-citation xml:lang="en">Goette A., Kalman J.M., Aguinaga L., Akar J., et al. EHRA/HRS/ APHRS/SOLAECE expert consensus on atrial cardiomyopathies: definition, characterization, and clinical implication. Europace. 2016; 18(10):1455-1490. https://doi.org/10.1016/j.hrthm.2016.05.028</mixed-citation></citation-alternatives></ref><ref id="cit11"><label>11</label><citation-alternatives><mixed-citation xml:lang="ru">Peters D.C., Wylie J.V., Hauser T.H., Kissinger K.V., et al. Detection of pulmonary vein and left atrial scar after catheter ablation with three-dimensional navigator-gated delayed enhancement MR imaging: initial experience. Radiology. 2007; 243(3):690-5. https://doi.10.1148/radiol.2433060417</mixed-citation><mixed-citation xml:lang="en">Peters D.C., Wylie J.V., Hauser T.H., Kissinger K.V., et al. Detection of pulmonary vein and left atrial scar after catheter ablation with three-dimensional navigator-gated delayed enhancement MR imaging: initial experience. Radiology. 2007; 243(3):690-5. https://doi.10.1148/radiol.2433060417</mixed-citation></citation-alternatives></ref><ref id="cit12"><label>12</label><citation-alternatives><mixed-citation xml:lang="ru">Marrouche N.F., Wilber D., Hindricks G., Jais P., et al. Association of atrial tissue fibrosis identified by delayed enhancement MRI and atrial fibrillation catheter ablation: the DECAAF study. JAMA. 2014; 311(5):498-506. https://doi.org/10.1001/jama.2014.3</mixed-citation><mixed-citation xml:lang="en">Marrouche N.F., Wilber D., Hindricks G., Jais P., et al. Association of atrial tissue fibrosis identified by delayed enhancement MRI and atrial fibrillation catheter ablation: the DECAAF study. JAMA. 2014; 311(5):498-506. https://doi.org/10.1001/jama.2014.3</mixed-citation></citation-alternatives></ref><ref id="cit13"><label>13</label><citation-alternatives><mixed-citation xml:lang="ru">Aryana A., Baker J.H., Espinosa Ginic M.A., Pujara D.K., et al. Posterior wall isolation using the cryoballoon in conjunction with pulmonary vein ablation is superior to pulmonary vein isolation alone in patients with persistent atrial fibrillation: A multicenter experience. Heart Rhythm. 2018; 15(8):1121-1129. https://doi.org/10.1016/j.hrthm.2018.05.014</mixed-citation><mixed-citation xml:lang="en">Aryana A., Baker J.H., Espinosa Ginic M.A., Pujara D.K., et al. Posterior wall isolation using the cryoballoon in conjunction with pulmonary vein ablation is superior to pulmonary vein isolation alone in patients with persistent atrial fibrillation: A multicenter experience. Heart Rhythm. 2018; 15(8):1121-1129. https://doi.org/10.1016/j.hrthm.2018.05.014</mixed-citation></citation-alternatives></ref><ref id="cit14"><label>14</label><citation-alternatives><mixed-citation xml:lang="ru">Апарина О.П., Стукалова О.В., Пархоменко Д.В., Миронова Н.А. и соавт. Характеристика струтуры миокарда левого предсердия у больных мерцательной аритмией и здоровых лиц по данным маг-нитнорезонансной томографии с отсроченным конрастировани- ем (2014). Вестник аритмологии. 2014;77.</mixed-citation><mixed-citation xml:lang="en">Aparina O.P., Stukalova O.V., Parkhomenko D.V., Mironova N.A., et al. Characteristics of the left atrium structure in patients with atrial fibrillation and healthy volunteers according to the data of late gadolinium enhancement cardiac magnetic resonance imaging (2014). Journal of Arrhythmology. 2014;77 (In Russ.)].</mixed-citation></citation-alternatives></ref><ref id="cit15"><label>15</label><citation-alternatives><mixed-citation xml:lang="ru">Стукалова О.В., Апарина О.П., Пархоменко Д.В., Миронова Н.А. и соавт. Пат. 2549825 Российская федерация, МПК A61B 5/055. Способ оценки структурных изменений миокарда предсердий у больных с нарушениями ритма сердца. Авторы: заявитель и патентообладатель ФГБУ «РКНПК» М3 РФ. №2014105347/14. заявл 14.02.2014, опубл. 27.04.2015, Бюл № 12 8 с.</mixed-citation><mixed-citation xml:lang="en">Stukalova O.V., Aparina O.P., Parkhomenko D.V., Mironova N.A., et al. Patent RU 2576816. Russian Federation, МПК A61B 5/055 (2006.01), A61K 49/06 (2006.01) The method of definition of the borders of left atrial myocardium on MR-images with late gadolinium enhancement using multiplanar reconstructions. Owner FSBI RCRPC MH of RF № 2015107013/14(011264) stated.02.03.2015, published. 10.03.2016 (in Russ.)].</mixed-citation></citation-alternatives></ref><ref id="cit16"><label>16</label><citation-alternatives><mixed-citation xml:lang="ru">Roka A., Burright I. Remodeling in Persistent Atrial Fibrillation: Pathophysiology and Therapeutic Targets—A Systematic Review. Physiologia. 2023; 3(1):43-72. https://doi.org/10.3390/physiologia3010004</mixed-citation><mixed-citation xml:lang="en">Roka A., Burright I. Remodeling in Persistent Atrial Fibrillation: Pathophysiology and Therapeutic Targets—A Systematic Review. Physiologia. 2023; 3(1):43-72. https://doi.org/10.3390/physiologia3010004</mixed-citation></citation-alternatives></ref><ref id="cit17"><label>17</label><citation-alternatives><mixed-citation xml:lang="ru">McGann C., Kholmovski E., Blauer J. Vijayakumar S., et al. Dark regions of no-reflow on late gadolinium enhancement magnetic resonance imaging result in scar formation after atrial fibrillation ablation. Journal of the American College of Cardiology. 2011; 58(2):177-185. https://doi.org/10.1016/j.jacc.2011.04.008</mixed-citation><mixed-citation xml:lang="en">McGann C., Kholmovski E., Blauer J. Vijayakumar S., et al. Dark regions of no-reflow on late gadolinium enhancement magnetic resonance imaging result in scar formation after atrial fibrillation ablation. Journal of the American College of Cardiology. 2011; 58(2):177-185. https://doi.org/10.1016/j.jacc.2011.04.008</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>
