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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">cardiotomsk</journal-id><journal-title-group><journal-title xml:lang="ru">Сибирский журнал клинической и экспериментальной медицины</journal-title><trans-title-group xml:lang="en"><trans-title>Siberian Journal of Clinical and Experimental Medicine</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2713-2927</issn><issn pub-type="epub">2713-265X</issn><publisher><publisher-name>TSU publishing</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.29001/2073-8552-2021-36-1-134-140</article-id><article-id custom-type="elpub" pub-id-type="custom">cardiotomsk-1144</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>ЭКСПЕРИМЕНТАЛЬНЫЕ ИССЛЕДОВАНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>EXPERIMENTAL STUDIES</subject></subj-group></article-categories><title-group><article-title>Доступ к межжелудочковой перегородке с пересечением и восстановлением фиброзного кольца аортального клапана (экспериментальное исследование)</article-title><trans-title-group xml:lang="en"><trans-title>Approach to the interventricular septum with transection and restoration of the fibrous ring of aortic valve (experimental study)</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-8494-0646</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Гурщенков</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Gurshchenkov</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p> канд. мед. наук, врач сердечно-сосудистый хирург, ассистент кафедры сердечно-сосудистой хирургии</p><p> 197347, Российская Федерация, Санкт-Петербург, ул. Аккуратова, 2 </p></bio><bio xml:lang="en"><p> Cand. Sci. (Med.), Cardiovascular Surgeon, Assistant Professor, Department of Cardiovascular Surgery</p><p>  2, Akkuratova str., St. Petersburg, 197341, Russian Federation </p></bio><email xlink:type="simple">glebenmerz@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/0000-0003-2777-8739</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Дьяченко</surname><given-names>Я. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Dyachenko</surname><given-names>Ya. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p> врач сердечно-сосудистый хирург, аспирант по  специальности «сердечно-сосудистая хирургия»</p><p> 197347, Российская Федерация, Санкт-Петербург, ул. Аккуратова, 2 </p></bio><bio xml:lang="en"><p> Cardiovascular Surgeon, Postgraduate Research Student in Cardiovascular Surgery </p><p> 2, Akkuratova str., St. Petersburg, 197341, Russian Federation </p></bio><email xlink:type="simple">brothers-90@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/0000-0003-0335-4712</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Майстренко</surname><given-names>А. Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Maystrenko</surname><given-names>A. D.</given-names></name></name-alternatives><bio xml:lang="ru"><p> канд. мед. наук, врач сердечно-сосудистый хирург</p><p> 197347, Российская Федерация, Санкт-Петербург, ул. Аккуратова, 2 </p></bio><bio xml:lang="en"><p> Cand. Sci. (Med.), Cardiovascular Surgeon </p><p> 2, Akkuratova str., St. Petersburg, 197341, Russian Federation </p></bio><email xlink:type="simple">maistr1987@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/0000-0002-7929-0594</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Успенский</surname><given-names>В. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Uspensky</surname><given-names>V. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p> канд. мед. наук, врач сердечно-сосудистый хирург, доцент кафедры сердечно-сосудистой хирургии</p><p> 197347, Российская Федерация, Санкт-Петербург, ул. Аккуратова, 2 </p></bio><bio xml:lang="en"><p> Cand. Sci. (Med.), Cardiovascular Surgeon, Associate Professor, Department of Cardiovascular Surgery </p><p> 2, Akkuratova str., St. Petersburg, 197341, Russian Federation </p></bio><email xlink:type="simple">vladimiruspenskiy@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/0000-0003-3146-4767</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ибрагимов</surname><given-names>А. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Ibragimov</surname><given-names>A. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p> врач сердечно-сосудистый хирург  </p><p> 197347, Российская Федерация, Санкт-Петербург, ул. Аккуратова, 2 </p></bio><bio xml:lang="en"><p> Cardiovascular Surgeon </p><p> 2, Akkuratova str., St. Petersburg, 197341, Russian Federation </p></bio><email xlink:type="simple">amiribra.spb@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/0000-0002-3338-9855</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Филиппов</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Filippov</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p> врач сердечно-сосудистый хирург, аспирант по специальности «сердечно-сосудистая хирургия»</p><p> 197347, Российская Федерация, Санкт-Петербург, ул. Аккуратова, 2 </p></bio><bio xml:lang="en"><p> Cardiovascular Surgeon, Postgraduate Research Student in Cardiovascular Surgery </p><p> 2, Akkuratova str., St. Petersburg, 197341, Russian Federation </p></bio><email xlink:type="simple">kaptain_alex@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/0000-0001-5362-3226</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Гордеев</surname><given-names>М. Л.</given-names></name><name name-style="western" xml:lang="en"><surname>Gordeev</surname><given-names>M. L.</given-names></name></name-alternatives><bio xml:lang="ru"><p> д-р мед. наук, профессор, заведующий кафедрой сердечно-сосудистой хирургии</p><p> 197347, Российская Федерация, Санкт-Петербург, ул. Аккуратова, 2 </p></bio><bio xml:lang="en"><p> Dr. Sci. (Med.), Professor, Head of the Department of Cardiovascular Surgery </p><p> 2, Akkuratova str., St. Petersburg, 197341, Russian Federation </p></bio><email xlink:type="simple">mlgordeev@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Национальный медицинский исследовательский центр имени В.А. Алмазова Министерства здравоохранения Российской Федерации</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Almazov National Medical Research Centre</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>05</day><month>04</month><year>2021</year></pub-date><volume>36</volume><issue>1</issue><fpage>134</fpage><lpage>140</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Гурщенков А.В., Дьяченко Я.А., Майстренко А.Д., Успенский В.Е., Ибрагимов А.Н., Филиппов А.А., Гордеев М.Л., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Гурщенков А.В., Дьяченко Я.А., Майстренко А.Д., Успенский В.Е., Ибрагимов А.Н., Филиппов А.А., Гордеев М.Л.</copyright-holder><copyright-holder xml:lang="en">Gurshchenkov A.V., Dyachenko Y.A., Maystrenko A.D., Uspensky V.E., Ibragimov A.N., Filippov A.A., Gordeev M.L.</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.sibjcem.ru/jour/article/view/1144">https://www.sibjcem.ru/jour/article/view/1144</self-uri><abstract><p> Септальная миоэктомия является одним из наиболее  надежных методов лечения обструктивных форм гипертрофической кардиомиопатии (ГКМП). Наиболее часто  эта операция выполняется с применением  трансаортального доступа. Хорошие непосредственные и  отдаленные результаты операции наблюдаются более чем в  90% случаев. Одной из причин неэффективности миоэктомии и ряда осложнений является ограниченная визуализация межжелудочковой перегородки (МЖП) через створ аортального клапана (АК). Данная задача может быть решена путем использования расширенного  трансаортального доступа к МЖП, подразумевающего  пересечение фиброзного кольца (ФК) АК.</p><sec><title>Цель</title><p>Цель: оценить эффективность расширенного трансаортального доступа к МЖП путем рассечения и восстановления ФК АК в зоне комиссуры с последующей оценкой его запирательной функции в эксперименте.</p></sec><sec><title>Материал и методы</title><p>Материал и методы. В качестве экспериментальных моделей использовались трупные свиные сердца. Выделялся корень аорты, коронарные артерии перевязывались. Выполнено 30 экспериментальных операций рассечения с последующим восстановлением одной комиссуры нативного АК. Оценивалось влияние исследуемого метода восстановления комиссуры на диаметр ФК АК. Запирательная функция АК после восстановления ФК исследовалась на специальном испытательном стенде путем проведения водяных проб с достижением максимального давления 200 мм рт. ст. и оценкой объема регургитации.</p></sec><sec><title>Результаты</title><p>Результаты. Был теоретически обоснован и изучен в эксперименте вариант шва стенки аорты для восстановления комиссуры нативного АК. При оценке состоятельности АК после рассечения и восстановления комиссуры во всех случаях значимая регургитация на АК отсутствовала. При прямом измерении диаметра ФК АК его значимого уменьшения после реконструкции не отмечалось. В 26 (87%) случаях диаметр ФК не изменился, в 4 (13%) случаях после коррекции диаметр уменьшился на 1 мм (р = 0,570).</p></sec><sec><title>Заключение</title><p>Заключение. В эксперименте показана возможность рассечения и успешного восстановления ФК АК в зонекомиссуры без нарушения его функции и существенного изменения диаметра ФК. Данная методика может стать ключевой в разработке как расширенного  трансаортального доступа к МЖП, так и новых вариантов  клапаносберегающих вмешательств на корне аорты. </p></sec></abstract><trans-abstract xml:lang="en"><p> Septal myectomy is one of the most reliable methods of treating obstructive forms of hypertrophic cardiomyopathy. Most often, this operation is performed using a transaortic approach. Good immediate and long-term results of the operation are observed in more than 90% of cases. The limited visualization of interventricular septum through the aortic valve orifice is one of the reasons for myectomy ineffectiveness and some complications. This problem can be solved by using an extended transaortic approach to the interventricular septum, implying the intersection of the  fibrous ring of aortic valve.</p><sec><title>Aim</title><p>Aim. To assess the effectiveness of extended transaortic approach to the interventricular septum by dissecting and restoring the fibrous ring of aortic valve in the commissural zone with subsequent assessment of its obturator function in the experiment.</p></sec><sec><title>Material and Methods</title><p>Material and Methods. Cadaveric porcine hearts were used as experimental models. The aortic root was exposed; the coronary arteries were ligated. A total of 30 experimental dissection operations were performed, followed by a restoration of one commissure of the native aortic valve. The effect of investigated method for the commissural restoration of the diameter to the fibrous ring of the aortic valve was evaluated. The obturator function of the aortic valve after the restoration of annulus fibrosus was studied using a special device by performing water test with a maximum pressure of 200 mm Hg and regurgitant volume estimation.</p></sec><sec><title>Results</title><p>Results. The aortic wall suture variant for the restoration of native aortic valve commissure was theoretically substantiated and studied in the experiment. When assessing the sufficiency of aortic valve after the dissection and restoration of commissure, no significant regurgitation on the aortic valve was observed in all cases. Direct measurements showed no significant decrease in the diameter of the annulus fibrosus of aortic valve after the reconstruction. The diameter of annulus fibrosus did not changein 26 (87%) cases; the diameter after correction decreased by 1 mm in 4 (13%) cases (p = 0.570).</p></sec><sec><title>Conclusion</title><p>Conclusion. The experiment showed a possibility of the dissection and successful restoration of the annulus fibrosus of aortic valve in the commissural zone without disrupting its function and significantly changing the diameter of annulus fibrosus. This technique can become a key one in the development of both extended transaortic approach to the  interventricular septum and new options for the valve-sparing interventions at the aortic root. </p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>септальная миоэктомия</kwd><kwd>расширенный трансаортальный доступ</kwd><kwd>межжелудочковая перегородка</kwd><kwd>аортальный клапан</kwd></kwd-group><kwd-group xml:lang="en"><kwd>septal myectomy</kwd><kwd>extended transaortic approach</kwd><kwd>interventricular septum</kwd><kwd>aortic valve</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">Hang D., Nguyen A., Schaff H. 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