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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">avk</journal-id><journal-title-group><journal-title xml:lang="ru">Архивъ внутренней медицины</journal-title><trans-title-group xml:lang="en"><trans-title>The Russian Archives of Internal Medicine</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2226-6704</issn><issn pub-type="epub">2411-6564</issn><publisher><publisher-name>“SINAPS” LLC</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.20514/2226-6704-2021-12-2-129-135</article-id><article-id custom-type="elpub" pub-id-type="custom">avk-1406</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 ARTICLE</subject></subj-group></article-categories><title-group><article-title>Предикторы растворения тромбов в ушке левого предсердия у больных персистирующей неклапанной фибрилляцией предсердий</article-title><trans-title-group xml:lang="en"><trans-title>Predictors of Thrombus Dissolution in the Left Atrial Appendage in Patients with Persistent Nonvalvular 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/0000-0002-8879-3791</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Мазур</surname><given-names>Е. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Mazur</surname><given-names>E. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>кафедра госпитальной терапии и профессиональных болезней</p><p>Тверь</p></bio><bio xml:lang="en"><p>Tver </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/0000-0003-4818-434X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Мазур</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Mazur</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>кафедра госпитальной терапии и профессиональных болезней</p><p>Тверь</p></bio><bio xml:lang="en"><p>Tver </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/0000-0003-0511-7366</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Баженов</surname><given-names>Н. Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Bazhenov</surname><given-names>N. D.</given-names></name></name-alternatives><bio xml:lang="ru"><p>кафедра госпитальной терапии и профессиональных болезней</p><p>Тверь</p></bio><bio xml:lang="en"><p>Tver </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/0000-0001-9114-0436</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Орлов</surname><given-names>Ю. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Orlov</surname><given-names>Yu. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>кафедра госпитальной терапии и профессиональных болезней</p><p>Тверь</p></bio><bio xml:lang="en"><p>Tver </p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБОУ ВО Тверской ГМУ Минздрава России</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Tver State Medical University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>30</day><month>03</month><year>2022</year></pub-date><volume>12</volume><issue>2</issue><fpage>129</fpage><lpage>135</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Мазур Е.С., Мазур В.В., Баженов Н.Д., Орлов Ю.А., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Мазур Е.С., Мазур В.В., Баженов Н.Д., Орлов Ю.А.</copyright-holder><copyright-holder xml:lang="en">Mazur E.S., Mazur V.V., Bazhenov N.D., Orlov Y.A.</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.medarhive.ru/jour/article/view/1406">https://www.medarhive.ru/jour/article/view/1406</self-uri><abstract><p>Цель работы — выявить факторы, влияющие на вероятность растворения тромба в ушке левого предсердия у больных персистирующей неклапанной фибрилляцией предсердий. Материал и методы. Повторное чреспищеводное эхокардиографическое исследование выполнено 88 больным персистирующей неклапанной фибрилляцией предсердий, у которых при первом исследовании был выявлен тромб в ушке левого предсердия. Результаты. При повторном исследовании, которое выполнялось в среднем через 30,0 (22,0; 40,0) дня после первого, растворение тромба в ушке левого предсердия было констатировано у 60 (68,2%) из 88 включенных в исследование пациентов. Анализ многофакторной логистической регрессии показал, что шансы растворения выявленного в ушке левого предсердия тромба возрастают в 5,789 (1,907–17,568) раза при размере тромба не более 25 мм, в 5,318 (1,325–21,353) раза при скорости кровотока в ушке левого предсердия не менее 20 см/с и в 3,687 (1,229–11,059) раза в случае использования прямых оральных антикоагулянтов, а не варфарина. При сочетании двух и более из указанных факторов вероятность растворения тромба достигает 89,6%. Заключение. Вероятность растворения тромба в ушке левого предсердия у больных персистирующей неклапанной фибрилляцией предсердий возрастает при небольшом размере тромба, высокой скорости изгнания крови из ушка левого предсердия и использовании прямых оральных антикоагулянтов.</p></abstract><trans-abstract xml:lang="en"><p>The aim of this study is to identify factors influencing the likelihood of the thrombus dissolution in the left atrial appendage in patients with persistent nonvalvular atrial fibrillation. Material and methods. A repeated transesophageal echocardiography was performed in 88 patients with persistent nonvalvular atrial fibrillation and with the left atrial appendage thrombus at the first transesophageal echocardiography. Results. The second transesophageal echocardiography was performed on average 30.0 (22.0; 40.0) days after the first one, the thrombus dissolution in the left atrial appendage was revealed in 60 (68.2%) patients. The multivariate logistic regression analysis showed that the chances of the thrombus dissolution increased by 5.789 (1.907–17.568) times with the thrombus size not more 25 mm, by 5.318 (1.325–21.353) times with the left atrial appendage emptying flow velocity not less 20 cm/s and 3.687 (1.229–11.059) times when prescribing the direct oral anticoagulants, and not warfarin. Combination of two or more factors give the probability of the thrombus dissolution of more than 89.6%. Conclusion. The probability of the thrombus dissolution in left atrial appendage in patients with persistent nonvalvular atrial fibrillation increases with a small thrombus size, a high the left atrial appendage emptying flow velocity, and if direct oral anticoagulants were prescribed.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>персистирующая фибрилляция предсердий</kwd><kwd>чреспищеводная эхокардиография</kwd><kwd>тромбоз ушка левого предсердия</kwd><kwd>пероральные антикоагулянты</kwd></kwd-group><kwd-group xml:lang="en"><kwd>persistent atrial fibrillation</kwd><kwd>transesophageal echocardiography</kwd><kwd>left atrial appendage thrombosis</kwd><kwd>oral anticoagulants</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">Аракелян М.Г., Бокерия Л.А., Васильева Е.Ю., и др. 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