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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">10.20996/1819-6446-2021-02-14</article-id><article-id custom-type="elpub" pub-id-type="custom">rpcardio-2401</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>CURRENT QUESTIONS OF CLINICAL PHARMACOLOGY</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>АКТУАЛЬНЫЕ  ВОПРОСЫ  КЛИНИЧЕСКОЙ ФАРМАКОЛОГИИ</subject></subj-group></article-categories><title-group><article-title>Modern trends in identification of causative agents in infective endocarditis</article-title><trans-title-group xml:lang="ru"><trans-title>Современные тренды этиологической диагностики инфекционного эндокардита</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9643-5089</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Котова</surname><given-names>Е. О.</given-names></name><name name-style="western" xml:lang="en"><surname>Kotova</surname><given-names>E. O.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Котова Елизавета Олеговна </p><p>Москва</p><p>eLibrary SPIN 6397-6480</p></bio><bio xml:lang="en"><p>Elizaveta O. Kotova</p><p>Moscow</p><p>eLibrary SPIN 6397-6480</p></bio><email xlink:type="simple">kotova_eo@pfur.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/0000-0001-8262-3938</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Домонова</surname><given-names>Э. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Domonova</surname><given-names>E. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Домонова Эльвира Алексеевна </p><p>Москва</p><p>eLibrary SPIN 1781-8807</p></bio><bio xml:lang="en"><p>Elvira A. Domonova</p><p>Moscow</p><p>eLibrary SPIN 1781-8807</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-5873-1768</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кобалава</surname><given-names>Ж. Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Kobalava</surname><given-names>Zh. D.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Кобалава Жанна Давидовна </p><p>Москва</p><p>eLibrary SPIN 9828-5409</p></bio><bio xml:lang="en"><p>Zhanna D. Kobalava</p><p>Moscow</p><p>eLibrary SPIN 9828-5409</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/0000-0003-4799-2740</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Караулова</surname><given-names>Ю. Л.</given-names></name><name name-style="western" xml:lang="en"><surname>Karaulova</surname><given-names>J. L.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Караулова Юлия Леонидовна </p><p>Москва</p><p>eLibrary SPIN 8967-1163</p></bio><bio xml:lang="en"><p>Yuliya L. Karaulova</p><p>Moscow</p><p>eLibrary SPIN 8967-1163</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/0000-0003-4103-4322</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Писарюк</surname><given-names>А. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Pisaryuk</surname><given-names>A. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Писарюк Александра Сергеевна </p><p>Москва</p><p>eLibrary SPIN 5602-1059</p></bio><bio xml:lang="en"><p>Alexandra S. Pisaryuk</p><p>Moscow</p><p>eLibrary SPIN 5602-1059</p></bio><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-6694-2231</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Балацкий</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Balatskiy</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Балацкий Александр Владимирович </p><p>Москва</p><p>eLibrary SPIN 3106-1840</p></bio><bio xml:lang="en"><p>Alexander V. Balatsky</p><p>Moscow</p><p>eLibrary SPIN 3106-1840</p></bio><xref ref-type="aff" rid="aff-4"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4228-9044</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Акимкин</surname><given-names>В. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Akimkin</surname><given-names>V. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Акимкин Василий Геннадьевич </p><p>Москва</p><p>eLibrary SPIN 4038-7455</p></bio><bio xml:lang="en"><p>Vasily G. Akimkin</p><p>Moscow</p><p>eLibrary SPIN 4038-7455</p></bio><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Российский университет дружбы народов</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Peoples’ Friendship University of Russia (RUDN)</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Центральный научно-исследовательский институт эпидемиологии</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Central Research Institute of Epidemiology</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Российский университет дружбы народов;&#13;
Городская клиническая больница им. В.В. Виноградова</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Peoples’ Friendship University of Russia (RUDN);&#13;
Moscow City Hospital named after V.V. Vinogradov</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-4"><aff xml:lang="ru"><institution>Московский государственный университет имени М.В. Ломоносова</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Lomonosov Moscow State 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>03</month><year>2021</year></pub-date><volume>17</volume><issue>1</issue><fpage>153</fpage><lpage>164</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Kotova E.O., Domonova E.A., Kobalava Z.D., Karaulova J.L., Pisaryuk A.S., Balatskiy A.V., Akimkin V.G., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Котова Е.О., Домонова Э.А., Кобалава Ж.Д., Караулова Ю.Л., Писарюк А.С., Балацкий А.В., Акимкин В.Г.</copyright-holder><copyright-holder xml:lang="en">Kotova E.O., Domonova E.A., Kobalava Z.D., Karaulova J.L., Pisaryuk A.S., Balatskiy A.V., Akimkin V.G.</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/2401">https://www.rpcardio.online/jour/article/view/2401</self-uri><abstract><p>Advances in the diagnosis and treatment of patients with infectious endocarditis are limited by the high frequency of cases with an unknown etiology and imperfection of microbiological (cultural) methods. To overcome these problems new approaches to the identification of infectious endocarditis pathogens were introduced, which allowed achieving certain positive results. However, it should be noted that despite the wide variety of diagnostic tools currently used, there is no ideal method for etiological laboratory diagnosis of infectious endocarditis. The article discusses the features and place of immunochemical, molecular biological (MALDI-TOF MS, real-time PCR, sequencing, in situ fluorescence hybridization, metagenomic methods, etc.), immunohistochemical methods, and their advantages and limitations.</p></abstract><trans-abstract xml:lang="ru"><p>Успехи диагностики и лечения больных инфекционным эндокардитом ограничены высокой частотой случаев с неустановленной этиологией и несовершенством микробиологических (культуральных) методов, для преодоления которых были внедрены новые подходы к идентификации возбудителей инфекционного эндокардита, позволившие достичь определенных положительных результатов. Однако следует констатировать, что несмотря на все разнообразие диагностических приемов, используемых на сегодняшний момент, идеального метода этиологической лабораторной диагностики инфекционного эндокардита нет. В статье рассмотрены особенности и место иммунохимических, молекулярнобиологических (MALDI-TOF MS, ПЦР в режиме «реального времени», секвенирование, флуоресцентная гибридизация in situ, метагеномные методы и др.), иммуногистохимических исследований, определены преимущества и ограничения их применения.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>инфекционный эндокардит неустановленной этиологии</kwd><kwd>микробиологические методы</kwd><kwd>MALDI-TOF MS</kwd><kwd>ПЦР-РВ (Real-time)</kwd><kwd>микробиологистика</kwd></kwd-group><kwd-group xml:lang="en"><kwd>culture negative infective endocarditis</kwd><kwd>microbiological methods</kwd><kwd>MALDI-TOF MS</kwd><kwd>Real-time PCR</kwd><kwd>microbiologistic</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">Habib G., Lancellotti P., Erba P., et al., EURO-ENDO Investigators. 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