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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">sibmed</journal-id><journal-title-group><journal-title xml:lang="ru">Сибирский научный медицинский журнал</journal-title><trans-title-group xml:lang="en"><trans-title>Сибирский научный медицинский журнал</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2410-2512</issn><issn pub-type="epub">2410-2520</issn><publisher><publisher-name>ИЦиГ СО РАН</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.18699/SSMJ20220408</article-id><article-id custom-type="elpub" pub-id-type="custom">sibmed-842</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>ОРИГИНАЛЬНОЕ ИССЛЕДОВАНИЕ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>RESEARCH ARTICLE</subject></subj-group></article-categories><title-group><article-title>Метод неинвазивной оценки структуры биопротеза клапана сердца</article-title><trans-title-group xml:lang="en"><trans-title>Method for non-invasive assessment of the structure of a heart valve bioprosthesis</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3211-1250</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Клышников</surname><given-names>К. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Klyshnikov</surname><given-names>K. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Кирилл Юрьевич Клышников, к.м.н.</p><p>650002, г. Кемерово, Сосновый бульвар, 6</p></bio><bio xml:lang="en"><p>Kirill Yu. Klyshnikov, candidate of medical sciences</p><p>650002, Kemerovo, Sosnovy blvd., 6</p></bio><email xlink:type="simple">klyshku@kemcardio.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/0000-0001-7477-3979</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Овчаренко</surname><given-names>Е. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Ovcharenko</surname><given-names>E. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Евгений Андреевич Овчаренко, к.т.н.</p><p>650002, г. Кемерово, Сосновый бульвар, 6</p></bio><bio xml:lang="en"><p>Evgeny A. Ovcharenko, candidate of technical sciences</p><p>650002, Kemerovo, Sosnovy blvd., 6</p></bio><email xlink:type="simple">ovchea@kemcardio.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/0000-0003-4890-0393</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Глушкова</surname><given-names>Т. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Glushkova</surname><given-names>T. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Татьяна Владимировна Глушкова, к.б.н.</p><p>650002, г. Кемерово, Сосновый бульвар, 6</p></bio><bio xml:lang="en"><p>Tatyana V. Glushkova, candidate of biological sciences</p><p>650002, Kemerovo, Sosnovy blvd., 6</p></bio><email xlink:type="simple">glushtv@kemcardio.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/0000-0002-6134-7468</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кудрявцева</surname><given-names>Ю. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Kudryavtseva</surname><given-names>Yu. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Юлия Александровна Кудрявцева, д.б.н.</p><p>650002, г. Кемерово, Сосновый бульвар, 6</p></bio><bio xml:lang="en"><p>Yulia A. Kudryavtseva, doctor of biological sciences</p><p>650002, Kemerovo, Sosnovy blvd., 6</p></bio><email xlink:type="simple">kudrua@kemcardio.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/0000-0001-6981-9661</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Барбараш</surname><given-names>Л. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Barbarash</surname><given-names>L. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Леонид Семенович Барбараш, д.м.н., проф., акад. РАН</p><p>650002, г. Кемерово, Сосновый бульвар, 6</p></bio><bio xml:lang="en"><p>Leonid S. Barbarash, doctor of medical sciences, professor, academician of the RAS</p><p>650002, Kemerovo, Sosnovy blvd., 6</p></bio><email xlink:type="simple">director@kemcardio.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>НИИ комплексных проблем сердечно-сосудистых заболеваний</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Federal State Budgetary Institution Research Institute for Complex Issues of Cardiovascular Diseases</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>27</day><month>08</month><year>2022</year></pub-date><volume>42</volume><issue>4</issue><fpage>87</fpage><lpage>95</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Клышников К.Ю., Овчаренко Е.А., Глушкова Т.В., Кудрявцева Ю.А., Барбараш Л.С., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Клышников К.Ю., Овчаренко Е.А., Глушкова Т.В., Кудрявцева Ю.А., Барбараш Л.С.</copyright-holder><copyright-holder xml:lang="en">Klyshnikov K.Y., Ovcharenko E.A., Glushkova T.V., Kudryavtseva Y.A., Barbarash L.S.</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://sibmed.elpub.ru/jour/article/view/842">https://sibmed.elpub.ru/jour/article/view/842</self-uri><abstract><p>Исследование эксплантированных биопротезов клапанов сердца представляет собой ценный источник информации о деструктивных процессах, развивающихся в их компонентах в результате длительного контакта с организмом реципиента. Анализ морфологии, стадийности и степени вовлеченности различных материалов протеза клапана в распространенность патологических процессов – кальцификации, механических разрушений, нарастания соединительно-тканной капсулы – является основой для разработки потенциальных методов увеличения срока службы данных изделий и снижения риска повторных вмешательств. Цель исследования – оценить потенциал компьютерной микротомографии для анализа внутренней структуры биологического протеза клапана сердца, эксплантированного по причине дисфункции. Материал и методы. В работе исследовали распространенность патологической минерализации биопротеза «ПериКор», эксплантированного вследствие развившейся дисфункции створчатого аппарата с клинической картиной протезной недостаточности степени 2Б. Материал описывали макроскопически, после чего исследовали методом компьютерной микротомографии высокого разрешения. В структуре образца выделяли и описывали рентгеноплотные области патологической минерализации, а также оценивали объем вовлеченного в кальцификацию материала. Результаты. Показано, что основными патологическими изменениями, приведшими к протезной дисфункции, стали дегенеративные изменения биоматериала с признаками кальцификации, с утолщением и разрывом створок. Количественно определено, что области рентгенологически плотных включений (кальцификатов) занимают 11,1 % объема материала. Установлено, что описанные области ассоциированы с обшивкой каркаса и с элементами шовного материала, используемого при производстве данного биопротеза. Заключение. Исследованный в настоящей работе метод неразрушающего анализа внутренней структуры измененных материалов биологического протеза продемонстрировал возможность качественной и количественной оценки областей патологической минерализации, их распространения и связанности с другими процессами, приводящими к развитию протезной дисфункции. Метод позволяет визуализировать макро- и микроучастки кальцификации и способен стать ценным инструментом для дополнения существующих подходов к исследованию эксплантированных биопротезов.</p></abstract><trans-abstract xml:lang="en"><p>Background. The study of explanted heart valve bioprostheses is a valuable source of information about the destructive processes in their components that develop as a result of prolonged contact with the recipient’s body. An analysis of the morphology, staging and degree of involvement of various valve prosthesis materials in the prevalence of pathological processes – calcification, mechanical damage, growth of the connective tissue capsule, is the basis for developing potential methods for increasing the service life of these products and reducing the risk of re-interventions. The aim of the study was to evaluate the potential of computed microtomography to analyze the internal structure of a biological prosthetic heart valve explanted due to dysfunction. Material and methods. In this work, we investigated the prevalence of pathological mineralization of the PeriCor bioprosthesis, explanted as a result of the developed dysfunction of the leaflet apparatus with a clinical picture of grade 2B prosthetic insufficiency. The material was described macroscopically, after which it was subjected to high-resolution computed microtomography. In the structure of the sample, X-ray dense areas of pathological mineralization were identified and described, and the volume of the material involved in calcification was assessed. Results. It was shown that the main pathological changes that led to prosthetic dysfunction were degenerative changes in the biomaterial with signs of calcification, thickening and rupture of the leaflets. It was quantitatively determined that the areas of radiologically dense inclusions (calcifications) occupy 11.1 % of the volume of the material. It has been established that the described areas are associated with the sheathing of the frame and with the elements of the suture material used in the production of this bioprosthesis. Conclusion. The method of non-destructive analysis of the internal structure of altered materials of a biological prosthesis studied in this work has demonstrated the possibility of а qualitative and quantitative assessment of areas of pathological mineralization, their distribution and connection with other processes leading to the development of prosthetic dysfunction. The method makes it possible to visualize macro- and microsites of calcification and can become a valuable tool to complement existing approaches to the study of explanted bioprostheses.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>компьютерная микротомография</kwd><kwd>протез клапана сердца</kwd><kwd>дисфункция биопротеза</kwd><kwd>кальцификация биоматериала</kwd><kwd>структурная дегенерация</kwd></kwd-group><kwd-group xml:lang="en"><kwd>computed microtomography</kwd><kwd>heart valve prosthesis</kwd><kwd>bioprosthesis dysfunction</kwd><kwd>biomaterial calcification</kwd><kwd>structural degeneration</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена в рамках фундаментальной темы № 0419-2022-0001 «Молекулярные, клеточные и биомеханические механизмы патогенеза сердечно-сосудистых заболеваний в разработке новых методов лечения заболеваний сердечно-сосудистой системы на основе персонифицированной фармакотерапии, внедрения малоинвазивных медицинских изделий, биоматериалов и тканеинженерных имплантатов» (научный руководитель – академик РАН Л.С. Барбараш).</funding-statement><funding-statement xml:lang="en">The investigation was carried out within the framework of the fundamental topic No. 0419-2022-0001 “Molecular, cellular and biomechanical mechanisms of the pathogenesis of cardiovascular diseases in the development of new methods for the treatment of diseases of the cardiovascular system based on personalized pharmacotherapy, the introduction of minimally invasive medical devices, biomaterials and tissue-engineered implants” (supervisor – Academician of the Russian Academy of Sciences L.S. Barbarash).</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">Бокерия Л.А., Милиевская Е.Б., Кудзоева З.Ф., Прянишников В.В., Скопин А.И., Юрлов И.А. Сердечно-сосудистая хирургия – 2018. Болезни и врожденные аномалии системы кровообращения. М.: НМИЦССХ им. А.Н. 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