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<article 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" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">RUDN Journal of Medicine</journal-id><journal-title-group><journal-title xml:lang="en">RUDN Journal of Medicine</journal-title><trans-title-group xml:lang="ru"><trans-title>Вестник Российского университета дружбы народов. Серия: Медицина</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2313-0245</issn><issn publication-format="electronic">2313-0261</issn><publisher><publisher-name xml:lang="en">Peoples’ Friendship University of Russia named after Patrice Lumumba (RUDN University)</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">49076</article-id><article-id pub-id-type="doi">10.22363/2313-0245-2025-30-1-9-30</article-id><article-id pub-id-type="edn">CUDXBW</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>SURGERY</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>ХИРУРГИЯ</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Meta-analysis of mid-term survival and clinical results of left ventricular surgical reconstruction</article-title><trans-title-group xml:lang="ru"><trans-title>Мета-анализ среднесрочной выживаемости и клинических результатов хирургической реконструкции левого желудочка</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7444-9930</contrib-id><contrib-id contrib-id-type="spin">1857-9594</contrib-id><name-alternatives><name xml:lang="en"><surname>Mamalyga</surname><given-names>Maxim L.</given-names></name><name xml:lang="ru"><surname>Мамалыга</surname><given-names>М. Л.</given-names></name></name-alternatives><email>mamalyga83@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">A.N. Bakulev National Medical Scientific Center for Cardiovascular Surgery</institution></aff><aff><institution xml:lang="ru">Национальный медицинский исследовательский центр сердечно-сосудистой хирургии имени А.Н. Бакулева</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2026-03-15" publication-format="electronic"><day>15</day><month>03</month><year>2026</year></pub-date><volume>30</volume><issue>1</issue><issue-title xml:lang="en">SURGERY</issue-title><issue-title xml:lang="ru">ХИРУРГИЯ</issue-title><fpage>9</fpage><lpage>30</lpage><history><date date-type="received" iso-8601-date="2026-03-22"><day>22</day><month>03</month><year>2026</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2026, Mamalyga M.L.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2026, Мамалыга М.Л.</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="en">Mamalyga M.L.</copyright-holder><copyright-holder xml:lang="ru">Мамалыга М.Л.</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://creativecommons.org/licenses/by-nc/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://journals.rudn.ru/medicine/article/view/49076">https://journals.rudn.ru/medicine/article/view/49076</self-uri><abstract xml:lang="en"><p>Relevance. Post-infarction aneurysm of the left ventricle significantly reduces the length and quality of life of patients. The results of comparisons of different methods for surgical restoration of the left ventricle are ambiguous and often contradictory, complicating the choice of an effective treatment strategy and the ability to objectively assess the survival prospects of such patients. The aim of the meta-analysis is to assess the one-year survival of patients after surgical reconstruction of the left ventricle, to determine the functional class of heart failure, and to study the morphological and functional characteristics of the heart. A comparative analysis of the results of the meta-analytic assessment of patient survival after left ventricle reconstruction using the DOR (SAVER) method will be performed in comparison with other treatment methods. Materials and Methods. As a result of a systematic search in two specialized databases (PubMed, Google Scholar), 1,875 articles were selected. A total of 15 studies were included in the final analysis. The total number of patients in these studies was 1,089. To objectify the assessment of the effectiveness of different surgical approaches, two patient groups were formed. The first group underwent only surgical reconstruction of the left ventricle using the Dor procedure or surgical anterior ventricular endocardial restoration (SAVER); the second group received other methods of surgical ventricular reconstruction, depending on the surgical feasibility. Results. The mean age of the examined patients was 62.1 (95% CI: 60.2-64.1) years. The study included 56% (95% CI: 42-69) men. Anterior aneurysm occurred in 87% (95% CI: 74-99) of patients. The mean EuroSCORE value corresponded to 9.7% (95% CI: 7.3-12.1). Before the operation, the patients had a high functional class of heart failure according to NYHA [3 functional class (95% CI: 2.82-3.1)], low left ventricular ejection fraction [31.3% (95% CI: 29.2-33.3)], dilation of the heart chambers [EDVI - 131.7 mL/m2 (95% CI: 113.1-150.2)]. Meta-analysis of the difference in mean values of ejection fraction in patients before and 1 year after surgery showed an increase of 10.1% (95% CI: 8.01-12.1, p &lt; 0.001). Meta-analysis of the difference in mean values of EDVI and NYHA functional class of heart failure in patients before and 1 year after surgery showed a decrease of 38.8 ml/m2 (95% CI: 28.1-49.6, p &lt; 0.001) and 1.52 (95% CI: 1.3-1.8, p &lt; 0.001), respectively. Conclusion. The meta-analysis showed that one year after surgery, survival rates are 94%, with statistically significant increases in ejection fraction and decreases in functional class of heart failure according to the NYHA scale. The studies did not reveal significant differences in patient survival and clinical outcomes one year after operations performed using different surgical methods. The results indicate the effectiveness of left ventricular surgical reconstruction, providing prolonged improvement in patients’ functional status. However, it should be noted that there was significant heterogeneity among the studies.</p></abstract><trans-abstract xml:lang="ru"><p>Актуальность. Постинфарктная аневризма левого желудочка значительно снижает продолжительность и качество жизни пациентов. Результаты сравнения разных способов хирургического восстановления левого желудочка неоднозначны и нередко противоречивы, что усложняет выбор эффективной стратегии лечения и возможность объективно оценить перспективу выживаемости таких пациентов. Цель мета-анализа - оценить выживаемость пациентов через 1 год после хирургической реконструкции левого желудочка, определить функциональный класс сердечной недостаточности и изучить морфо-функциональные характеристики сердца. Выполнить сравнительный анализ результатов мета-аналитической оценки выживаемости пациентов после хирургической реконструкции левого желудочка по методике DOR (SAVER), в сопоставлении с другими методами лечения. Материалы и методы. В результате систематического поиска по двум специализированным базам данных (PubMed, Google Scholar) отобрано 1875 статей. В окончательный анализ было включено 15 исследований. Общее количество пациентов в этих исследованиях составило 1089. В целях объективизации оценки эффективности разных хирургических подходов было сформировано две группы пациентов. В первой - проводилась только хирургическая реконструкция левого желудочка по методике Дора или операция SAVER (surgical anterior ventricular endocardial restoration); во второй - применялись и другие методы хирургической реконструкции левого желудочка, в зависимости от хирургической целесообразности. Результаты и обсуждение. Средний возраст обследованных пациентов составил 62.1 (95% CI: 60.2-64.1) года. В исследовании принимали участие 56% (95% CI: 42-69) мужчин. Аневризма передней локализации встречалась у 87% (95% CI: 74-99) пациентов. Среднее значение EuroSCORE соответствовало 9.7% (95% CI: 7.3-12.1). До операции у пациентов отмечался высокий функциональный класс сердечной недостаточности по NYHA [3 functional class (95% CI: 2.82-3.1)], низкая фракция выброса левого желудочка [31.3% (95% CI: 29.2-33.3)], расширение полостей сердца [EDVI - 131.7 mL/m2 (95% CI: 113.1-150.2)]. Мета-анализ разности средних значений фракции выброса у пациентов до и через 1 год после операции свидетельствует о ее повышении на 10.1% (95% CI: 8.01-12.1, р &lt; 0.001). Мета-анализ разности средних значений EDVI и функционального класса сердечной недостаточности по NYHA у пациентов до и через 1 год после операции показал снижение на 38.8 мл/м2 (95% CI: 28.1-49.6, р &lt; 0.001) и 1.52 (95% CI: 1.3-1.8, p &lt; 0.001) соответственно. Выводы. Мета-анализ показал, что через год после операции выживаемость составляет 94%, при этом статистически значимо увеличивается фракция выброса и снижается функциональный класс сердечной недостаточности по шкале NYHA. Исследования не выявили значимых различий выживаемости пациентов и их клинических результатов через год после операций, выполненных разными хирургическими методами. Полученные результаты свидетельствуют об эффективности хирургической реконструкции левого желудочка, обеспечивающей пролонгированное улучшение функционального состояния пациентов. Однако необходимо отметить, что между исследованиями наблюдалась значительная гетерогенность.</p></trans-abstract><kwd-group xml:lang="en"><kwd>postinfarction left ventricular aneurysm</kwd><kwd>surgical ventricular reconstruction</kwd><kwd>ventricular restoration</kwd><kwd>dor procedure</kwd><kwd>ventricular</kwd><kwd>endoventricular plasty</kwd><kwd>mid-term survival</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>Постинфарктная аневризма левого желудочка</kwd><kwd>хирургическая реконструкция желудочка</kwd><kwd>операция Дора</kwd><kwd>эндовентрикулопластика</kwd><kwd>среднесрочная выживаемость</kwd></kwd-group><funding-group/></article-meta><fn-group/></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Golukhova EZ, Slivneva IV, Kozlova OS, Berdibekov BS, Skopin II, Merzlyakov VY, Baichurin RK, Sigaev IY, Keren MA, Alshibaya MD, Marapov DI, Arzumanyan MA. 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