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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="en"><front><journal-meta><journal-id journal-id-type="publisher-id">rpcardio</journal-id><journal-title-group><journal-title xml:lang="en">Rational Pharmacotherapy in Cardiology</journal-title><trans-title-group xml:lang="ru"><trans-title>Рациональная Фармакотерапия в Кардиологии</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1819-6446</issn><issn pub-type="epub">2225-3653</issn><publisher><publisher-name>«SILICEA-POLIGRAF» LLC</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.20996/1819-6446-2021-10-08</article-id><article-id custom-type="elpub" pub-id-type="custom">rpcardio-2583</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="en"><subject>NOTES FROM PRACTICE</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>КЛИНИЧЕСКИЙ ОПЫТ</subject></subj-group></article-categories><title-group><article-title>Efficiency of the Left Atrial Appendage Thrombus Dissolution in Patients with Persistent Nonvalvular Atrial Fibrillation with Warfarin or Direct Oral Anticoagulants Therapy</article-title><trans-title-group xml:lang="ru"><trans-title>Эффективность растворения тромбов в ушке левого предсердия у больных персистирующей неклапанной фибрилляцией предсердий при лечении варфарином и прямыми оральными антикоагулянтами</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>Мазур Евгений Станиславович</p><p>eLibrary SPIN 3898-6719</p></bio><bio xml:lang="en"><p>Evgeniy S. Mazur</p><p>eLibrary SPIN 3898-6719</p></bio><email xlink:type="simple">mazur-tver@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/0000-0003-4818-434X</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>Мазур Вера Вячеславовна</p><p>eLibrary SPIN 9798-0540</p></bio><bio xml:lang="en"><p>Vera V. Mazur</p><p>eLibrary SPIN 9798-0540</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>Баженов Николай Дмитриевич</p><p>eLibrary SPIN 1053-3892</p></bio><bio xml:lang="en"><p>Nikolay D. Bazhenov</p><p>eLibrary SPIN 1053-3892</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>Орлов Юрий Александрович</p><p>eLibrary SPIN 8518-2831</p></bio><bio xml:lang="en"><p>Yuriy A. Orlov</p><p>eLibrary SPIN 8518-2831</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Тверской государственный медицинский университет</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>2021</year></pub-date><pub-date pub-type="epub"><day>03</day><month>11</month><year>2021</year></pub-date><volume>17</volume><issue>5</issue><fpage>724</fpage><lpage>728</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Mazur E.S., Mazur V.V., Bazhenov N.D., Orlov Y.A., 2021</copyright-statement><copyright-year>2021</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.rpcardio.online/jour/article/view/2583">https://www.rpcardio.online/jour/article/view/2583</self-uri><abstract><sec><title>Aim</title><p>Aim. Compare the incidence of the left atrial appendage (LAA) thrombus dissolution in patients with persistent nonvalvular atrial fibrillation receiving warfarin and direct oral anticoagulants (DOAC).</p></sec><sec><title>Materials and methods</title><p>Materials and methods. 68 patients with persistent nonvalvular atrial fibrillation were included in a retrospective study (age was 59.7±9.8 years, 60.3% men), in whom at least one repeated transesophageal echocardiographic examination was performed after detecting a thrombus. After detecting a thrombus in the LAA, 37 (54.4%) patients started or continued taking warfarin in doses that ensure the INR maintenance at the level of 2-3, 14 (20.6%) started or continued taking dabigatran at a dose of 150 mg 2 times/day, 14 (20.6%) started or continued taking rivaroxaban 20 mg 1 time/day and 3 (4.4%) started or continued taking apixaban 5 mg 2 times/day. Repeated transesophageal echocardiographic examination was performed on average 33.3±14.2 days after the first one.</p></sec><sec><title>Results</title><p>Results. Dissolution of a previously identified thrombus was found in 26 (83.9%) of 31 patients receiving DOAC and in 19 (51.4%) of 37 patients receiving warfarin (p=0.011). The logistic regression analysis showed that the chances of a thrombus dissolution in LAA while taking DOAC are 14.8 times (95% confidence interval [CI] was 2.469-88.72) higher than while taking warfarin. The size and the rate at which blood is expelled from the LAA also have an independent influence on the chances of thrombus dissolution. An increase in the size of a thrombus by 1 mm reduces the chances of a thrombus dissolution by 1.136 (95% CI was 1.040-1.244) times, and an increase in the rate of blood expulsion from the LAA by 1 cm/sec increases these chances by 1.105 (95% CI was 1.003-1.219) times.</p></sec><sec><title>Conclusion</title><p>Conclusion. In the present study, the incidence of the LAA thrombus dissolution in patients with persistent nonvalvular atrial fibrillation while receiving DOAC was higher than while receiving warfarin.</p></sec></abstract><trans-abstract xml:lang="ru"><sec><title>Цель</title><p>Цель. Сравнить частоту растворения тромбов в ушке левого предсердия (УЛП) у больных персистирующей неклапанной фибрилляцией предсердий, получающих варфарин и прямые оральные антикоагулянты (ПОАК).</p></sec><sec><title>Материал и методы</title><p>Материал и методы. В ретроспективное исследование включены 68 пациентов с персистирующей неклапанной фибрилляцией предсердий (возраст 59,7±9,8 года, 60,3% мужчин), у которых после выявления тромба было выполнено как минимум одно повторное чреспищеводное эхокардиографическое исследование. После выявления тромба в УЛП 37 (54,4%) пациентов начали или продолжили прием варфарина в дозах, обеспечивающих поддержание МНО на уровне 2-3, 14 (20,6%) – прием дабигатрана в дозе 150 мг 2 р/сут, 14 (20,6%) – ривароксабана по 20 мг 1 р/сут и 3 (4,4%) – апиксабана по 5 мг 2 р/сут. Повторное чреспищеводное эхокардиографическое исследование выполнялось в среднем через 33,3±14,2 дня после первого.</p></sec><sec><title>Результаты</title><p>Результаты. Растворение ранее выявленного тромба было констатировано у 26 (83,9%) из 31 больного, получавшего ПОАК, и у 19 (51,4%) из 37 больных, получавших варфарин (р=0,011). Логистический регрессионный анализ показал, что шансы растворения тромба в УЛП на фоне приема ПОАК в 14,8 (95% доверительный интервал [ДИ] 2,469-88,72) раза выше, чем на фоне приема варфарина. Независимое влияние на шансы растворения тромба оказывают также его размер и скорость изгнания крови из УЛП. Увеличение размера тромба на 1 мм снижает шансы растворения тромба в 1,136 раза (95% ДИ 1,040-1,244), а увеличение скорости изгнания крови из УЛП на 1 см/с повышает эти шансы в 1,105 раза (95% ДИ 1,003-1,219).</p></sec><sec><title>Заключение</title><p>Заключение. В настоящем исследовании частота растворения тромбов в УЛП у больных персистирующей неклапанной фибрилляцией предсердий на фоне приема ПОАК была выше, чем на фоне приема варфарина.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>фибрилляция предсердий</kwd><kwd>чреспищеводная эхокардиография</kwd><kwd>тромбоз ушка левого предсердия</kwd><kwd>пероральные антикоагулянты</kwd><kwd>варфарин</kwd></kwd-group><kwd-group xml:lang="en"><kwd>atrial fibrillation</kwd><kwd>transesophageal echocardiography</kwd><kwd>left atrial appendage thrombosis</kwd><kwd>oral anticoagulants</kwd><kwd>warfarin</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Исследование проведено при поддержке Тверского государственного медицинского университета</funding-statement><funding-statement xml:lang="en">The study was performed with the support of the Tver State Medical University</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">Аракелян М.Г., Бокерия Л.А., Васильева Е.Ю., и др. 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